Lutz Volkmann

发表

Sufficient conditions for graphs to be lambda'-optimal, super-edge-connected, and maximally edge-connected

Angelika Hellwig, Lutz Volkmann, 2005, J. Graph Theory.

Smallest regular and almost regular triangle-free graphs without perfect matchings

Lutz Volkmann, 2013, Ars Comb..

Minimum size of a graph or digraph of given radius

Lutz Volkmann, Peter Dankelmann, 2009, Inf. Process. Lett..

On local connectivity of graphs

Lutz Volkmann, 2008, Appl. Math. Lett..

Signed k-domatic numbers of graphs

Seyed Mahmoud Sheikholeslami, Odile Favaron, Lutz Volkmann, 2015, Ars Comb..

New bounds on the k-domination number and the k-tuple domination number

Dieter Rautenbach, Lutz Volkmann, D. Rautenbach, 2007, Appl. Math. Lett..

Roman Domination Dot-critical Graphs

Lutz Volkmann, Nader Jafari Rad, 2013, Graphs Comb..

Restricted edge-connectivity and minimum edge-degree

Lutz Volkmann, Nicola Ueffing, 2003, Ars Comb..

On the signed total Roman domination and domatic numbers of graphs

Lutz Volkmann, 2016, Discret. Appl. Math..

On graphs with equal domination and independent domination numbers

Lutz Volkmann, Jerzy Topp, 1991, Discret. Math..

Domination Number, Independent Domination Number and 2-Independence Number in Trees

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, Hamideh Aram, 2021, Discuss. Math. Graph Theory.

Sufficient conditions for semicomplete multipartite digraphs to be Hamiltonian

Lutz Volkmann, Anders Yeo, Yubao Guo, 2000, Discret. Math..

The total {k}-domatic number of digraphs

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, 2012, Discuss. Math. Graph Theory.

On connectivity in graphs with given clique number

Angelika Hellwig, Lutz Volkmann, 2006, J. Graph Theory.

Characterization of block graphs with equal 2-domination number and domination number plus one

Lutz Volkmann, Adriana Hansberg, 2007, Discuss. Math. Graph Theory.

Lower bounds on the signed k-domination number of graphs

Lutz Volkmann, 2017, Ars Comb..

Bounds on the Signed 2-Independence Number in Graphs

Lutz Volkmann, 2013, Discuss. Math. Graph Theory.

Signed Total Roman Domination in Digraphs

Lutz Volkmann, 2017, Discuss. Math. Graph Theory.

Characterization of trees with equal 2-domination number and domination number plus two

Lutz Volkmann, Mustapha Chellali, 2011, Discuss. Math. Graph Theory.

Edge-cuts leaving components of order at least three

Lutz Volkmann, Nicola Ueffing, Paul Bonsma, 2002, Discret. Math..

Bypaths in Tournaments

Lutz Volkmann, Yubao Guo, 1997, Discret. Appl. Math..

Tree-Ramsey numbers

Lutz Volkmann, Yabao Guo, 1995, Australas. J Comb..

Cycles in Multipartite Tournaments

Lutz Volkmann, Yubao Guo, 1994, J. Comb. Theory, Ser. B.

Signed total (j, k)-domatic numbers of graphs

Lutz Volkmann, 2013, Australas. J Comb..

Complementary cycles in regular multipartite tournaments

Lutz Volkmann, 2005, Australas. J Comb..

Relations between the lower domination parameters and the chromatic number of a graph

Lutz Volkmann, Mustapha Chellali, 2004, Discret. Math..

The k-Rainbow Bondage Number of a Digraph

J. Amjadi, Seyed Mahmoud Sheikholeslami, Lutz Volkmann, 2015, Discuss. Math. Graph Theory.

Signed 2-independence in digraphs

Lutz Volkmann, 2012, Discret. Math..

On the Roman Bondage Number of Planar Graphs

Lutz Volkmann, Nader Jafari Rad, 2011, Graphs Comb..

Cycles in multipartite tournaments: results and problems

Lutz Volkmann, L. Volkmann, 2002, Discret. Math..

Cuts leaving components of given minimum order

Dieter Rautenbach, Angelika Hellwig, Lutz Volkmann, 2005, Discret. Math..

Edge-connectivity in p-partite graphs

Lutz Volkmann, L. Volkmann, 1989, J. Graph Theory.

A remark on cycles through an arc in strongly connected multipartite tournaments

Lutz Volkmann, L. Volkmann, 2007, Appl. Math. Lett..

Cyclic sums, network sharing, and restricted edge cuts in graphs with long cycles

Dieter Rautenbach, Lutz Volkmann, 2008, Networks.

Some structural results on linear arboricity

Dieter Rautenbach, Lutz Volkmann, 1998, Australas. J Comb..

Vertex pancyclic graphs

Lutz Volkmann, Ingo Schiermeyer, Meike Tewes, 1999, Discret. Appl. Math..

Signed Roman domination in digraphs

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, 2015, J. Comb. Optim..

Degree sequence conditions for maximally edge-connected oriented graphs

Lutz Volkmann, L. Volkmann, 2006, Appl. Math. Lett..

The Diameter of Almost Eulerian Digraphs

Lutz Volkmann, Peter Dankelmann, 2010, Electron. J. Comb..

On the size of odd order graphs with no almost perfect matching

Lutz Volkmann, 2004, Australas. J Comb..

SIGNED TOTAL K-DOMINATION NUMBERS OF DIRECTED GRAPHS

Lutz Volkmann, 2010 .

On the Signed (Total) K-Independence Number in Graphs

Lutz Volkmann, Babak Samadi, Abdollah Khodkar, 2015, Discuss. Math. Graph Theory.

Paths with a given number of vertices from each partite set in regular multipartite tournaments

Lutz Volkmann, Stefan Winzen, L. Volkmann, 2006, Discret. Math..

Signed mixed Roman domination numbers in graphs

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, Hossein Abdollahzadeh Ahangar, 2016, J. Comb. Optim..

K-independence Stable Graphs upon Edge Removal

Lutz Volkmann, Teresa W. Haynes, Mustapha Chellali, 2010, Discuss. Math. Graph Theory.

Roman bondage in graphs

Lutz Volkmann, Nader Jafari Rad, N. J. Rad, 2011, Discuss. Math. Graph Theory.

A characterization of well covered block-cactus graphs

Lutz Volkmann, Bert Randerath, 1994, Australas. J Comb..

I Gamma(1)-perfect Graphs

Dieter Rautenbach, Lutz Volkmann, Lothar Dohmen, 2001, Discret. Math..

The Distance Roman Domination Numbers of Graphs

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, Hamideh Aram, 2013, Discuss. Math. Graph Theory.

On alphargammas(k)-perfect graphs

Dieter Rautenbach, Lutz Volkmann, 2003, Discret. Math..

k-Domination and k-Independence in Graphs: A Survey

Odile Favaron, Lutz Volkmann, Adriana Hansberg, 2012, Graphs Comb..

A proof of a conjecture on the differential of a subcubic graph

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, Mustapha Chellali, 2020, Discret. Appl. Math..

Upper bounds on the domination number of a graph in terms of order, diameter and minimum degree

Lutz Volkmann, Beate Küpper, 2006, Australas. J Comb..

Extremal bipartite graphs with a unique k-factor

Lutz Volkmann, Elzbieta Sidorowicz, Arne Hoffmann, 2006, Discuss. Math. Graph Theory.

Almost all almost regular c-partite tournaments with cgeq5 are vertex pancyclic

Lutz Volkmann, Anders Yeo, Meike Tewes, 2002, Discret. Math..

The ratio of the longest cycle and longest path in semicomplete multipartite digraphs

Lutz Volkmann, Meike Tewes, 2001, Discret. Math..

Cycles through a given arc in almost regular multipartite tournaments

Lutz Volkmann, Stefan Winzen, L. Volkmann, 2003, Australas. J Comb..

Structural Remarks on Bipartite Graphs with Unique f-Factors

Lutz Volkmann, Arne Hoffmann, 2005, Graphs Comb..

Some remarks on the signed domatic number of graphs with small minimum degree

Lutz Volkmann, 2009, Appl. Math. Lett..

The Roman domatic number of a graph

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, 2010, Appl. Math. Lett..

Bounds on the k-independence and k-chromatic numbers of graphs

Lutz Volkmann, Mostafa Blidia, Ahmed Bouchou, 2014, Ars Comb..

Longest paths through an arc in strongly connected in-tournaments

Lutz Volkmann, 2000, Australas. J Comb..

On complementary cycles in locally semicomplete digraphs

Lutz Volkmann, Yubao Guo, L. Volkmann, 1994, Discret. Math..

A disproof of Henning's conjecture on irredundance perfect graphs

Lutz Volkmann, Vadim E. Zverovich, 2002, Discret. Math..

Upper bounds on the domination number of a graph in terms of order and minimum degree

Lutz Volkmann, 2006, Ars Comb..

Independence and k-domination in graphs

Lutz Volkmann, Adriana Hansberg, Dirk Meierling, 2011, Int. J. Comput. Math..

A method for collision detection channel change commands in a single-cable distribution system

Lutz Volkmann, Jens Pfeiffer, 2008 .

Graphs having distance-n domination number half their order

Lutz Volkmann, Miranca Fischermann, 2002, Discret. Appl. Math..

The ratio of the irredundance and domination number of a graph

Lutz Volkmann, L. Volkmann, 1998, Discret. Math..

The signed Roman domatic number of a digraph

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, 2015, Electron. J. Graph Theory Appl..

Vertex pancyclic in-tournaments

Lutz Volkmann, Meike Tewes, 2001, J. Graph Theory.

Neighbourhood and degree conditions for the existence of regular factors

Lutz Volkmann, Ursala Lenkewitz, 1996, Ars Comb..

Degree sequence conditions for maximally edge-connected graphs depending on the clique number

Lutz Volkmann, Peter Dankelmann, 2000, Discret. Math..

The smallest regular graphs which are not 1-extendable

Lutz Volkmann, 2012, Ars Comb..

Signed Roman k-domination in trees

Michael A. Henning, Lutz Volkmann, 2015, Discret. Appl. Math..

Signed star domatic number of a graph

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, S. M. Sheikholeslami, 2010, Discret. Appl. Math..

Degree sequence conditions for maximally edge-connected graphs and digraphs

Lutz Volkmann, Peter Dankelmann, 1997, J. Graph Theory.

Sufficient conditions on the zeroth-order general Randić index for maximally edge-connected graphs

Lutz Volkmann, Guifu Su, Zhibing Chen, 2017, Discret. Appl. Math..

The k-rainbow domatic number of a graph

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, 2012, Discuss. Math. Graph Theory.

Bounds on the global offensive k-alliance number in graphs

Lutz Volkmann, Teresa W. Haynes, Bert Randerath, 2009, Discuss. Math. Graph Theory.

Connectivity properties of locally semicomplete digraphs

Lutz Volkmann, Yubao Guo, 1994, J. Graph Theory.

A Short Proof of a Theorem of Kano and Yu on Factors in Regular Graphs

Lutz Volkmann, 2007, Electron. J. Comb..

How close to regular must a multipartite tournament be to secure a given path covering number?

Lutz Volkmann, Stefan Winzen, Irene Stella, 2008, Ars Comb..

Signed domination and signed domatic numbers of digraphs

Lutz Volkmann, 2011, Discuss. Math. Graph Theory.

The domatic number of block-cactus graphs

Dieter Rautenbach, Lutz Volkmann, 1998, Discret. Math..

Strong subtournaments of multipartite tournaments

Lutz Volkmann, 1999, Australas. J Comb..

Signed total {k}-domination and {k}-Domatic numbers of Graphs

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, 2012, Discret. Math. Algorithms Appl..

Cycle factors in strongly connected local tournaments

Lutz Volkmann, Dirk Meierling, 2010, Discret. Math..

On the connectivity of close to regular multipartite tournaments

Lutz Volkmann, Stefan Winzen, L. Volkmann, 2006, Discret. Appl. Math..

On the order of almost regular bipartite graphs without perfect matchings

Lutz Volkmann, Axel Zingsem, 2008, Australas. J Comb..

On the p-domination number of cactus graphs

Lutz Volkmann, Mostafa Blidia, Mustapha Chellali, 2005, Discuss. Math. Graph Theory.

Global Roman Domination in Trees

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, M. Atapour, 2015, Graphs Comb..

Maximally local-edge-connected graphs and digraphs

Angelika Hellwig, Lutz Volkmann, 2004, Ars Comb..

A generalization of menger's theorem for certain block—cactus graphs

Lutz Volkmann, Yubao Guo, 1995, Graphs Comb..

On k‐domination and minimum degree in graphs

Odile Favaron, Lutz Volkmann, Adriana Hansberg, 2008, J. Graph Theory.

The connectivity of a graph and its complement

Angelika Hellwig, Lutz Volkmann, 2008, Discret. Appl. Math..

Degree sequence conditions for maximally edge-connected and super-edge-connected oriented graphs depending on the clique number

Lutz Volkmann, 2011, Ars Comb..

Restricted arc-connectivity of digraphs

Lutz Volkmann, L. Volkmann, 2007, Inf. Process. Lett..

Signed star k-domatic number of a graph

Lutz Volkmann, S. M. Sheikholeslami, 2011, Contributions Discret. Math..

Neighborhood conditions for graphs and digraphs to be maximally edge-connected

Angelika Hellwig, Lutz Volkmann, 2005, Australas. J Comb..

On local connectivity of graphs with given clique number

Lutz Volkmann, Andreas Holtkamp, 2010, J. Graph Theory.

The k-rainbow reinforcement numbers in graphs

J. Amjadi, Seyed Mahmoud Sheikholeslami, Lutz Volkmann, 2017, Discret. Appl. Math..

Maximum graphs with a unique minimum dominating set

Dieter Rautenbach, Lutz Volkmann, Miranca Fischermann, 2003, Discret. Math..

Maximally connected graphs and digraphs

Angelika Hellwig, Lutz Volkmann, 2005 .

Vertex deletion and cycles in multipartite tournaments

Lutz Volkmann, Meike Tewes, 1999, Discret. Math..

On cycles through a given vertex in multipartite tournaments

Lutz Volkmann, Yubao Guo, Axel Pinkernell, 1997, Discret. Math..

On graphs with equal domination and edge independence numbers

Lutz Volkmann, 1995, Ars Comb..

Sufficient conditions for maximally edge-connected and super-edge-connected oriented graphs depending on the clique number

Lutz Volkmann, 2010, Ars Comb..

Fundamente der Graphentheorie

Lutz Volkmann, 1996, Springer Lehrbuch Mathematik.

On regular (1, q)-extendable graphs

Lutz Volkmann, 2009, Australas. J Comb..

Extremal Trees with Respect to Dominance Order

Dieter Rautenbach, Lutz Volkmann, Miranca Fischermann, 2005, Ars Comb..

Degree sequence conditions for equal edge-connectivity and minimum degree, depending on the clique number

Lutz Volkmann, 2003, J. Graph Theory.

All regular multipartite tournaments that are cycle complementary

Lutz Volkmann, L. Volkmann, 2004, Discret. Math..

Weakly Hamiltonian-connected locally semicomplete digraphs

Lutz Volkmann, Jørgen Bang-Jensen, Yubao Guo, 1996, J. Graph Theory.

The Double Roman Domatic Number of a Digraph

Lutz Volkmann, L. Volkmann, 2020, Discuss. Math. Graph Theory.

On cycles in regular 3-partite tournaments

Lutz Volkmann, 2006, Discret. Math..

The k-rainbow bondage number of a graph

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, Nasrin Dehgardi, 2014, Discret. Appl. Math..

Longest paths in semicomplete multipartite digraphs

Lutz Volkmann, L. Volkmann, 1999, Discret. Math..

The signed Roman k-domatic number of a graph

Lutz Volkmann, L. Volkmann, 2015, Discret. Appl. Math..

Cycles through a given arc and certain partite sets in almost regular multipartite tournaments

Lutz Volkmann, Stefan Winzen, 2004, Discret. Math..

Strongly 4-path-connectivity in almost regular multipartite tournaments

Lutz Volkmann, Stefan Winzen, Irene Stella, 2007, Discret. Math..

Almost regular c-partite tournaments with c ≥ 8 contain an n-cycle through a given arc for 4 ≤ n ≤ c

Lutz Volkmann, Stefan Winzen, 2005, Australas. J Comb..

On The Co-Roman Domination in Graphs

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, Zehui Shao, 2019, Discuss. Math. Graph Theory.

Method and means for integrating audio-visual media content from Web TV and radio services in the Rundfunkkanal- and program directories of a TV receiver

Lutz Volkmann, Sebastian Schmidt, Michael Rudolph, 2013 .

Local-edge-connectivity in digraphs and oriented graphs

Lutz Volkmann, 2007, Discret. Math..

Maximally edge-connected digraphs

Angelika Hellwig, Lutz Volkmann, 2003, Australas. J Comb..

Maximally edge-connected and vertex-connected graphs and digraphs: A survey

Angelika Hellwig, Lutz Volkmann, L. Volkmann, 2008, Discret. Math..

Bounds on the signed domatic number

Lutz Volkmann, 2011, Appl. Math. Lett..

Vertex 6-pancyclic in-tournaments

Lutz Volkmann, Christian Peters, 2004, Discret. Math..

On the geodetic and geodetic domination numbers of a graph

Lutz Volkmann, Adriana Hansberg, 2010, Discret. Math..

New sufficient conditions for equality of minimum degree and edge-connectivity

Lutz Volkmann, Peter Dankelmann, 1995, Ars Comb..

On the order of almost regular graphs without a matching of given size

Lutz Volkmann, Sabine Klinkenberg, 2006, Australas. J Comb..

Multipartite tournaments: A survey

Lutz Volkmann, L. Volkmann, 2007, Discret. Math..

Maximal Sets of 2-Factors in Complete Equipartite Graphs

Lutz Volkmann, Bert Randerath, Arne Hoffmann, 1999, Electron. Notes Discret. Math..

On the connectivity of p-diamond-free graphs

Lutz Volkmann, Andreas Holtkamp, 2009, Discret. Math..

Remarks on the bondage number of planar graphs

Dieter Rautenbach, Lutz Volkmann, Miranca Fischermann, 2003, Discret. Math..

Extremal subgraphs with respect to vertex degree bounds

Dieter Rautenbach, Lutz Volkmann, 2003, Discret. Math..

Minimum degree conditions for the Overfull Conjecture for odd order graphs

Lutz Volkmann, Arne Hoffmann, Kerstin Bongard, 2003, Australas. J Comb..

Longest cycles in almost regular 3-partite tournaments

Lutz Volkmann, 2006, Discret. Math..

Roman {3}-domination (double Italian domination)

Lutz Volkmann, Doost Ali Mojdeh, L. Volkmann, 2020, Discret. Appl. Math..

A Complete Solution of a Problem of Bondy Concerning Multipartite Tournaments

Lutz Volkmann, Yubao Guo, L. Volkmann, 1996, J. Comb. Theory, Ser. B.

Some remarks on alpha-domination

Dieter Rautenbach, Lutz Volkmann, F. Dahme, 2004, Discuss. Math. Graph Theory.

Degree sequence conditions for maximally edge-connected and super-edge-connected digraphs depending on the clique number

Lutz Volkmann, Sebastian Milz, 2018, Discret. Math..

Complementary cycles in regular multipartite tournaments, where one cycle has length five

Lutz Volkmann, Zhihong He, Stefan Winzen, 2009, Discret. Math..

Upper bounds on the k-domination number and the k-Roman domination number

Lutz Volkmann, Adriana Hansberg, L. Volkmann, 2009, Discret. Appl. Math..

Signed total Roman domination in graphs

Lutz Volkmann, 2016, J. Comb. Optim..

Restricted arc-connectivity of generalized tournaments

Lutz Volkmann, Stefan Winzen, Dirk Meierling, 2008, Australas. J Comb..

On unique independent sets in graphs

Lutz Volkmann, Jerzy Topp, Werner Siemes, 1994, Discret. Math..

Independence number in n-extendable graphs

Lutz Volkmann, Peter Maschlanka, 1996, Discret. Math..

Complementary cycles in almost regular multipartite tournaments, where one cycle has length four

Lutz Volkmann, 2013, Discret. Appl. Math..

On arc-traceable local tournaments

Lutz Volkmann, Dirk Meierling, 2008, Discret. Math..

A note on the independent domination number in graphs

Lutz Volkmann, Nader Jafari Rad, 2013, Discret. Appl. Math..

Unique irredundance, domination and independent domination in graphs

Lutz Volkmann, Miranca Fischermann, Igor Zverovich, 2005, Discret. Math..

Vertex pancyclic graphs

Lutz Volkmann, Ingo Schiermeyer, Meike Tewes, 2002, Discret. Appl. Math..

Critical concept for double Roman domination in graphs

Lutz Volkmann, S. Nazari-Moghaddam, L. Volkmann, 2020, Discret. Math. Algorithms Appl..

A note on the number of matchings and independent sets in trees

Dieter Rautenbach, Lutz Volkmann, Miranca Fischermann, 2005, Discret. Appl. Math..

Signed Roman Edge k-Domination in Graphs

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, Leila Asgharsharghi, 2017, Discuss. Math. Graph Theory.

Nordhaus-Gaddum bounds on the k-rainbow domatic number of a graph

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, Dirk Meierling, 2011, Appl. Math. Lett..

Otto Blumenthal (1876-1944) in retrospect

Lutz Volkmann, P. L. Butzer, P. Butzer, 2006, J. Approx. Theory.

On graphs with equal domination and 2-domination numbers

Lutz Volkmann, Adriana Hansberg, L. Volkmann, 2008, Discret. Math..

On 2-domination and independence domination numbers of graphs

Lutz Volkmann, Adriana Hansberg, L. Volkmann, 2011, Ars Comb..

On the cycle structure of in-tournaments

Lutz Volkmann, Meike Tewes, 1998, Australas. J Comb..

Hamiltonian paths containing a given arc, in almost regular bipartite tournaments

Lutz Volkmann, L. Volkmann, 2004, Discret. Math..

Independence and global offensive alliance in graphs

Lutz Volkmann, Mustapha Chellali, 2010, Australas. J Comb..

Characterization of graphs with equal domination and covering number

Lutz Volkmann, Bert Randerath, 1998, Discret. Math..

All 2-connected in-tournaments that are cycle complementary

Lutz Volkmann, Dirk Meierling, L. Volkmann, 2008, Discret. Math..

On the connectivity of diamond-free graphs

Angelika Hellwig, Lutz Volkmann, Peter Dankelmann, 2007, Discret. Appl. Math..

Universal arcs in local tournaments

Wei Meng, Jia Guo, Lutz Volkmann, 2017, Discret. Math..

Wiener index versus maximum degree in trees

Dieter Rautenbach, Lutz Volkmann, László A. Székely, 2002, Discret. Appl. Math..

Simplicial Graphs and Relationships to Different Graph Invariants

Lutz Volkmann, Bert Randerath, L. Volkmann, 1997, Ars Comb..

Connected global offensive k-alliances in graphs

Lutz Volkmann, 2011, Discuss. Math. Graph Theory.

Extendable Cycles in Multipartite Tournaments

Lutz Volkmann, Yubao Guo, L. Volkmann, 2004, Graphs Comb..

Matchings in 4-total restrained domination vertex critical graphs

Lutz Volkmann, Nader Jafari Rad, 2016, Ars Comb..

Almost regular multipartite tournaments containing a Hamiltonian path through a given arc

Lutz Volkmann, Stefan Winzen, L. Volkmann, 2004, Discret. Math..

The Maximum Size Of Graphs With A Uniquek- Factor

Lutz Volkmann, 2004, Comb..

Every cycle-connected multipartite tournament has a universal arc

Lutz Volkmann, Stefan Winzen, 2009, Discret. Math..

Average distance in k-connected tournaments

Lutz Volkmann, Peter Dankelmann, 2005, Ars Comb..

Almost regular c-partite tournaments contain a strong subtournament of order c when c >= 5

Lutz Volkmann, Stefan Winzen, L. Volkmann, 2008, Discret. Math..

A characterization of rho alpha(k)-perfect graphs

Dieter Rautenbach, Lutz Volkmann, Lothar Dohmen, 2000, Discret. Math..

Signed star (j, k)-domatic numbers of digraphs

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, 2015, Discret. Math. Algorithms Appl..

Signed domatic number of a graph

Lutz Volkmann, Bohdan Zelinka, 2005, Discret. Appl. Math..

Global offensive alliance numbers in graphs with emphasis on trees

Lutz Volkmann, Teresa W. Haynes, Mustapha Chellali, 2009, Australas. J Comb..

2-domination in Bipartite Graphs with Odd Independence Number

Lutz Volkmann, Adriana Hansberg, 2011, Australas. J Comb..

Upper bounds on the signed total domatic number of graphs

Lutz Volkmann, 2011, Discret. Appl. Math..

On the existence of edge cuts leaving several large components

Dieter Rautenbach, Lutz Volkmann, D. Rautenbach, 2009, Discret. Math..

Unique response Roman domination in graphs

Lutz Volkmann, Nader Jafari Rad, E. Ebrahimi Targhi, 2011, Discret. Appl. Math..

A remark on degree sequences of multigraphs

Lutz Volkmann, Dirk Meierling, L. Volkmann, 2009, Math. Methods Oper. Res..

On the rainbow restrained domination number

Vladimir Samodivkin, J. Amjadi, Seyed Mahmoud Sheikholeslami, 2016, Ars Comb..

An upper bound on the double Roman domination number

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, Jafar Amjadi, 2018, J. Comb. Optim..

Generalization of the total outer-connected domination in graphs

Lutz Volkmann, Nader Jafari Rad, 2016, RAIRO Oper. Res..

Total and connected domination in digraphs

Lutz Volkmann, S. Arumugam, K. Jacob, 2007, Australas. J Comb..

The Petersen graph is not 1-factorable: postscript to The Petersen graph is not 3-edge-colorable - a new proof' [Discrete Math. 268 (2003) 325-326]

Lutz Volkmann, 2004, Discret. Math..

Sufficient conditions for triangle-free graphs to be optimally restricted edge-connected

Lutz Volkmann, Dirk Meierling, 2012, Discret. Appl. Math..

On unique k-factors and unique [1, k]-factors in graphs

Lutz Volkmann, Arne Hoffmann, 2004, Discret. Math..

Average distance in bipartite tournaments

Lutz Volkmann, Peter Dankelmann, 2007, Ars Comb..

Spanning multipartite tournaments of semicomplete multipartite digraphs

Lutz Volkmann, 2001, Ars Comb..

Cycles of length four through a given arc in almost regular multipartite tournaments

Lutz Volkmann, 2003, Ars Comb..

On the order of close to regular graphs without a matching of given size

Lutz Volkmann, Sabine Klinkenberg, 2007, Ars Comb..

An introduction to the twin signed total k-domination numbers in directed graphs

Lutz Volkmann, Nasrin Dehgardi, Masoud Atapour, 2017, RAIRO Oper. Res..

Signed Roman $$k$$k-Domination in Graphs

Michael A. Henning, Lutz Volkmann, L. Volkmann, 2016, Graphs Comb..

On Regular Factors in Regular Graphs with Small Radius

Lutz Volkmann, Arne Hoffmann, 2004, Electron. J. Comb..

Roman game domination number of a graph

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, A. Bahremandpour, 2017, J. Comb. Optim..

Locally semicomplete digraphs that are complementary m-pancyclic

Lutz Volkmann, Yubao Guo, L. Volkmann, 1996, J. Graph Theory.

Hamiltonian paths, containing a given path or collection of arcs, in close to regular multipartite tournaments

Lutz Volkmann, Anders Yeo, L. Volkmann, 2004, Discret. Math..

alpha-Domination perfect trees

Dieter Rautenbach, Lutz Volkmann, F. Dahme, 2008, Discret. Math..

Some bounds on the p-domination number in trees

Lutz Volkmann, Mostafa Blidia, Mustapha Chellali, 2006, Discret. Math..

Signed Roman edge domination numbers in graphs

J. Amjadi, Seyed Mahmoud Sheikholeslami, Lutz Volkmann, 2016, J. Comb. Optim..

A remark on the (2, 2)-domination number

Lutz Volkmann, Dirk Meierling, Torsten Korneffel, 2008, Discuss. Math. Graph Theory.

Sufficient Conditions for Maximally Edge-Connected and Super-Edge-Connected Graphs Depending on The Clique Number

Lutz Volkmann, 2019, Discuss. Math. Graph Theory.

Graphs having distance-n domination number half their order

Lutz Volkmann, Miranca Fischermann, 1999, Electron. Notes Discret. Math..

A new domination conception

Lutz Volkmann, Christoph Stracke, 1993, J. Graph Theory.

Lower bounds on the vertex-connectivity of digraphs and graphs

Angelika Hellwig, Lutz Volkmann, 2006, Inf. Process. Lett..

Parity and disparity subgraphs

Terry A. McKee, Lutz Volkmann, T. McKee, 2009, Discret. Math..

Distance Domination and Distance Irredundance in Graphs

Lutz Volkmann, Adriana Hansberg, Dirk Meierling, 2007, Electron. J. Comb..

The Signed Total Roman k-Domatic Number Of A Graph

Lutz Volkmann, 2017, Discuss. Math. Graph Theory.

Total restrained reinforcement in graphs

Lutz Volkmann, Nader Jafari Rad, 2016, AKCE Int. J. Graphs Comb..

The Roman {2}-domatic number of graphs

Lutz Volkmann, 2019, Discret. Appl. Math..

Edge-Removal and Edge-Addition in $$\alpha $$α-Domination

Lutz Volkmann, Nader Jafari Rad, 2016, Graphs Comb..

On the number of cycles in local tournaments

Lutz Volkmann, Dirk Meierling, 2009, Discret. Math..

Some remarks on lambdap, q-connectedness

Dieter Rautenbach, Lutz Volkmann, D. Rautenbach, 2008, Discret. Math..

on Graphs with Equal Domination and Covering Numbers

Lutz Volkmann, L. Volkmann, 1994, Discret. Appl. Math..

On packing and covering numbers of graphs

Lutz Volkmann, Jerzy Topp, 1991, Discret. Math..

Sufficient conditions for equality of connectivity and minimum degree of a graph

Lutz Volkmann, Jerzy Topp, L. Volkmann, 1993, J. Graph Theory.

On the number of nonseparating vertices in strongly connected local tournaments

Lutz Volkmann, Dirk Meierling, 2007, Australas. J Comb..

Some results on graph parameters in weighted graphs

Dieter Rautenbach, Lutz Volkmann, Peter Dankelmann, 2000, Electron. Notes Discret. Math..

New Bounds on the Signed Total Domination Number of Graphs

Lutz Volkmann, Doost Ali Mojdeh, Babak Samadi, 2015, Discuss. Math. Graph Theory.

The signed Roman k-domatic number of digraphs

Lutz Volkmann, 2016, Australas. J Comb..

Signed (j, k)-domatic number of graphs

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, 2016, Ars Comb..

Sufficient conditions for lambda'-optimality in graphs of diameter 2

Angelika Hellwig, Lutz Volkmann, 2004, Discret. Math..

The signed domatic number of some regular graphs

Lutz Volkmann, Dirk Meierling, Stephan Zitzen, 2009, Discret. Appl. Math..

Some upper bounds for the product of the domination number and the chromatic number of a graph

Lutz Volkmann, Jerzy Topp, 1993, Discret. Math..

Upper Bounds on the Signed Total (K, K)-Domatic Number of Graphs

Lutz Volkmann, 2015, Discuss. Math. Graph Theory.

Longest paths through an arc in strong semicomplete multipartite digraphs

Lutz Volkmann, 2002, Discret. Math..

Note on the connectivity of line graphs

Dieter Rautenbach, Angelika Hellwig, Lutz Volkmann, 2004, Inf. Process. Lett..

A general method in the theory of domination in graphs

Lutz Volkmann, Adriana Hansberg, Dirk Meierling, 2010, Int. J. Comput. Math..

How local irregularity gets global in a graph

Dieter Rautenbach, Lutz Volkmann, 2002, J. Graph Theory.

On the signed 2-independence number of graphs

Lutz Volkmann, Doost Ali Mojdeh, Babak Samadi, 2017, Electron. J. Graph Theory Appl..

Unique minimum domination in trees

Lutz Volkmann, Miranca Fischermann, 2002, Australas. J Comb..

Graphs with unique dominating sets

Lutz Volkmann, Miranca Fischermann, 2000, Electron. Notes Discret. Math..

Cycles through a given arc in certain almost regular multipartite tournaments

Lutz Volkmann, 2002, Australas. J Comb..

On local connectivity of K2, p-free graphs

Lutz Volkmann, Andreas Holtkamp, 2011, Australas. J Comb..

A lower bound for the irredundance number of trees

Lutz Volkmann, Michael Poschen, 2006, Discuss. Math. Graph Theory.

Total Roman {3}-domination in Graphs

Lutz Volkmann, Zehui Shao, Doost Ali Mojdeh, 2020, Symmetry.

On almost 1-extendable graphs

Lutz Volkmann, 2010, Australas. J Comb..

A characterization of bipartite graphs with independence number half their order

Lutz Volkmann, 2008, Australas. J Comb..

Signed Roman k-domination in Digraphs

Lutz Volkmann, 2016, Graphs Comb..

A classification of locally semicomplete digraphs

Gregory Gutin, Lutz Volkmann, Jørgen Bang-Jensen, 1997, Discret. Math..

Independent domination and matchings in graphs

Dieter Rautenbach, Lutz Volkmann, 2002, Discret. Math..

Weighted domination in triangle-free graphs

Dieter Rautenbach, Lutz Volkmann, Peter Dankelmann, 2002, Discret. Math..

Strong subtournaments containing a given vertex in regular multipartite tournaments

Lutz Volkmann, Stefan Winzen, 2008, Discret. Math..

A characterization of even order trees with domination number half their order minus one

Lutz Volkmann, Adriana Hansberg, 2009, Australas. J Comb..

A Linear-programming Approach to the Generalized Randic Index

Dieter Rautenbach, Lutz Volkmann, Arne Hoffmann, 2003, Discret. Appl. Math..

Proof of a conjecture on game domination

Seyed Mahmoud Sheikholeslami, Odile Favaron, Lutz Volkmann, 2010, J. Graph Theory.

Proof of a conjecture on irredundance perfect graphs

Lutz Volkmann, Vadim E. Zverovich, 2002, J. Graph Theory.

Degree sequence conditions for super-edge-connected graphs and digraphs

Lutz Volkmann, 2003, Ars Comb..

Bounds on the Signed Roman k-Domination Number of a Digraph

Guoliang Hao, Lutz Volkmann, Xiaodan Chen, 2019, Discuss. Math. Graph Theory.

Class 1 conditions depending on the minimum degree and the number of vertices of maximum degree

Lutz Volkmann, Thomas Niessen, 1990, J. Graph Theory.

Oriented diameter of maximal outerplanar graphs

Lutz Volkmann, Peter Dankelmann, Yaojun Chen, 2021, J. Graph Theory.

Sufficient Conditions for Graphs to Be k -Connected, Maximally Connected, and Super-Connected

Lutz Volkmann, Fuyuan Chen, Zhen-Mu Hong, 2021, Complex..

Signed total Italian k-domatic number of a graph

Lutz Volkmann, 2021 .

Nordhaus-Gaddum type results for connected and total domination

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, Rana Khoeilar, 2021, RAIRO Oper. Res..

Restrained double Italian domination in graphs

Lutz Volkmann, 2021 .

Restrained double Roman domination of a graph

Lutz Volkmann, Doost Ali Mojdeh, Iman Masoumi, 2021, RAIRO Oper. Res..

Weak Signed Roman Domination in Digraphs

Lutz Volkmann, L. Volkmann, 2021 .

Remarks on the outer-independent double Italian domination number

Lutz Volkmann, 2021 .

Total vertex-edge domination in trees

Lutz Volkmann, Mustapha Chellali, H. Abdollahzadeh Ahangar, 2021 .

Signed total Italian k-domination in graphs

Lutz Volkmann, 2021 .

Disprove of a Conjecture on the Doubly Connected Domination Subdivision Number

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, Zehui Shao, 2021 .

Double Roman and Double Italian Domination

Lutz Volkmann, L. Volkmann, 2021, Discuss. Math. Graph Theory.

Bounds on the k-tuple domatic number of a graph

Lutz Volkmann, L. Volkmann, 2011 .

The signed k-domination number of directed graphs

Lutz Volkmann, S. M. Sheikholeslami, Maryam Atapour, 2010 .

How local irregularity gets global in a graph

Dieter Rautenbach, Lutz Volkmann, 2002 .

Total Roman domination number of trees

J. Amjadi, Lutz Volkmann, S. M. Sheikholeslami, 2017 .

Double Roman Domination in Digraphs

Guoliang Hao, Lutz Volkmann, Xiaodan Chen, 2019 .

Claw-free graphs with equal 2-domination and domination numbers

Lutz Volkmann, Adriana Hansberg, Bert Randerath, 2016 .

Cactus graphs with unique minimum dominating sets

Lutz Volkmann, Miranca Fischermann, 2003 .

Graphs with Large Italian Domination Number

Michael A. Henning, Lutz Volkmann, Teresa W. Haynes, 2020, Bulletin of the Malaysian Mathematical Sciences Society.

Vertex deletion and cycles in multipartite tournaments

Lutz Volkmann, Meike Tewes, 1999 .

Locally semicomplete digraphs that are complementary m -pancyclic

Lutz Volkmann, Yubao Guo, 1996 .

Degree sequence conditions for equal edge-connectivity and minimum degree, depending on the clique number

Lutz Volkmann, 2003 .

CYCLES THROUGH A GIVEN SET OF VERTICES IN REGULAR MULTIPARTITE TOURNAMENTS

Lutz Volkmann, Stefan Winzen, L. Volkmann, 2007 .

New Bounds on the Rainbow Domination Subdivision Number

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, S. Sheikholeslami, 2014 .

Proof of a conjecture on irredundance perfect graphs

Lutz Volkmann, Vadim. Zverovich, 2002 .

On αrγs(k)-perfect graphs

Dieter Rautenbach, Lutz Volkmann, 2003 .

Cyclic sums, network sharing, and restricted edge cuts in graphs with long cycles

Dieter Rautenbach, Lutz Volkmann, 2008 .

Cycles with a given number of vertices from each partite set in regular multipartite tournaments

Lutz Volkmann, Stefan Winzen, L. Volkmann, 2006 .

Total double Roman domination in graphs

Guoliang Hao, Lutz Volkmann, Doost Ali Mojdeh, 2020 .

Vertex and edge critical Roman domination in graphs

Lutz Volkmann, Nader Jafari Rad, Adriana Hansberg Pastor, 2013 .

Proof of a conjecture on game domination

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, Rana Khoeilar, 2010 .

Signed total (k, k)-domatic number of digraphs

Lutz Volkmann, S. M. Sheikholeslami, 2012 .

Weakly Complementary Cycles in 3-Connected Multipartite Tournaments

Lutz Volkmann, Stefan Winzen, 2008 .

Multiple domination in graphs

Lutz Volkmann, Adriana Hansberg Pastor, 2009 .

Roman Domination in Graphs

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, Mustapha Chellali, 2020, Topics in Domination in Graphs.

A note on the complexity of graph parameters and the uniqueness of their realizations

Dieter Rautenbach, Lutz Volkmann, Miranca Fischermann, 2005 .

Neighborhood and degree conditions for super-edge-connected bipartite digraphs

Angelika Hellwig, Lutz Volkmann, 2004 .

Maximal Roman domination numbers in graphs

Lutz Volkmann, H. Abdollahzadeh Ahangar, S. M. Sheikholeslami, 2017 .

Independence and 2-domination in bipartite graphs

Jun Fujisawa, Akira Saito, Lutz Volkmann, 2008 .

Sufficient conditions for graphs to be λ′-optimal, super-edge-connected, and maximally edge-connected

Angelika Hellwig, Lutz Volkmann, 2005 .

Varieties of Roman domination II

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, Nader Jafari Rad, 2020, AKCE Int. J. Graphs Comb..

Signed total 2-independence in digraphs

Lutz Volkmann, 2017 .

The Roman Domatic Problem in Graphs and Digraphs: A Survey

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, Nader Jafari Rad, 2020, Discuss. Math. Graph Theory.

A Nordhaus-Gaddum-type result for the 2-domination number

Lutz Volkmann, 2008 .

The Italian domatic number of a digraph

Lutz Volkmann, 2019 .

Some Remarks on λ p , q-Connectedness

Dieter Rautenbach, Lutz Volkmann, D. Rautenbach, 2007 .

Changing and unchanging the Roman domination number of a graph

Lutz Volkmann, Nader Jafari Rad, 2012 .

The {k}-domatic number of a graph

Lutz Volkmann, S. M. Sheikholeslami, Dirk Meierling, 2011 .

Sufficient conditions for super-edge-connected graphs depending on the clique number

Lutz Volkmann, 2004 .

The Roman k-domatic number of a graph

Seyed Mahmoud Sheikholeslami, Lutz Volkmann, S. M. Sheikholeslami, 2011, 2003.09272.

On the total domatic number of regular graphs

Lutz Volkmann, S. M. Sheikholeslami, L. Volkmann, 2012 .

On k-domination and minimum degree in graphs

Odile Favaron, Lutz Volkmann, Adriana Hansberg, 2008 .

Signed k-independence in graphs

Lutz Volkmann, L. Volkmann, 2013 .

A note on signed total 2-independence in graphs

Lutz Volkmann, Haichao Wang, Jie Tong, 2011 .

On perfect and unique maximum independent sets in graphs

Lutz Volkmann, 2004 .

On Domination and Independence Numbers of Graphs

Lutz Volkmann, Jerzy Topp, 1990 .

ROMAN k-DOMINATION IN GRAPHS

Lutz Volkmann, L. Volkmann, Karsten Kammerling, 2009 .

Factors of Locally almost Regular Graphs

Lutz Volkmann, A. Joentgen, 1991 .

A lower bound for the distance k-domination number of trees

Lutz Volkmann, Dirk Meierling, 2005 .

Rainbow restrained domination numbers in graphs

J. Amjadi, Seyed Mahmoud Sheikholeslami, Lutz Volkmann, 2016, Ars Comb..

Geodetic Domination in Graphs

Lutz Volkmann, Ralucca Gera, Adriana Hansberg, 2011 .

Total restrained bondage in graphs

Lutz Volkmann, Joanna Raczek, Roslan Hasni, 2013 .

A bound on the k-domination number of a graph

Lutz Volkmann, 2010 .

On connectivity in graphs with given clique number

Angelika Hellwig, Lutz Volkmann, 2006 .

Close to regular multipartite tournaments

Lutz Volkmann, Stefan Winzen, 2004 .