F. Mazenc
发表
L. Praly,
F. Mazenc,
1994,
Proceedings of 1994 33rd IEEE Conference on Decision and Control.
F. Mazenc,
C. Prieur,
2003
.
Frédéric Mazenc,
Pierre-Alexandre Bliman,
P. Bliman,
2003,
42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475).
F. Mazenc,
S. Niculescu,
S. Niculescu,
2001,
Proceedings of the 40th IEEE Conference on Decision and Control (Cat. No.01CH37228).
L. Praly,
F. Mazenc,
1996,
IEEE Trans. Autom. Control..
W. Dayawansa,
L. Praly,
F. Mazenc,
1994
.
F. Mazenc,
Sungpil Yang,
M. Akella,
2016
.
F. Mazenc,
S. Niculescu,
T. N. Dinh,
2014
.
F. Mazenc,
M. de Queiroz,
M. Malisoff,
2008
.
F. Mazenc,
C. Prieur,
2011
.
F. Mazenc,
F. Lamnabhi-Lagarrigue,
T. Ahmed-Ali,
1999
.
F. Mazenc,
M. Malisoff,
F. Mazenc,
2005,
Proceedings of the 44th IEEE Conference on Decision and Control.
F. Mazenc,
S. Bowong,
2005,
CDC/ECC.
Frédéric Mazenc,
Silviu-Iulian Niculescu,
F. Mazenc,
2001
.
A. Astolfi,
F. Mazenc,
1998,
Proceedings of the 37th IEEE Conference on Decision and Control (Cat. No.98CH36171).
Frédéric Mazenc,
Olivier Bernard,
F. Mazenc,
2010
.
F. Mazenc,
M. Malisoff,
2017
.
F. Mazenc,
Sungpil Yang,
M. Akella,
2017
.
F. Mazenc,
Michael Maliso,
2005
.
F. Mazenc,
M. Malisoff,
2005,
Proceedings of the 2005, American Control Conference, 2005..
F. Mazenc,
M. Malisoff,
2005
.
F. Mazenc,
M. Malisoff,
Saeed Ahmed,
2018,
International Journal of Robust and Nonlinear Control.
Frédéric Mazenc,
Silviu-Iulian Niculescu,
Thach Ngoc Dinh,
2013
.
Frédéric Mazenc,
Olivier Bernard,
F. Mazenc,
2014
.
Eric Walter,
Frédéric Mazenc,
Michel Kieffer,
2012
.
Frédéric Mazenc,
Maruthi R. Akella,
Divya Thakur,
2015
.
Uniform global asymptotic stability of adaptive cascaded nonlinear systems with unknown high-frequen
Michael Malisoff,
Frédéric Mazenc,
Marcio de Queiroz,
2011
.
F. Mazenc,
M. Malisoff,
Michael A. Malisoff,
2010
.
F. Mazenc,
M. Malisoff,
Michael A. Malisoff,
2010,
Proceedings of the 2010 American Control Conference.
F. Mazenc,
2006
.
F. Mazenc,
M. Malisoff,
2008
.
L. Praly,
F. Mazenc,
2000,
Proceedings of the 39th IEEE Conference on Decision and Control (Cat. No.00CH37187).
Zhong-Ping Jiang,
Frédéric Mazenc,
Zhong-Ping Jiang,
2010
.
F. Mazenc,
T. N. Dinh,
M. Malisoff,
2012
.
F. Mazenc,
S. Niculescu,
G. Robledo,
2019
.
F. Mazenc,
M. Malisoff,
2010
.
P. Pepe,
F. Mazenc,
H. Ito,
2014
.
Zongli Lin,
F. Mazenc,
Charles L. Brown,
2007
.
M. Queiroz,
F. Mazenc,
Michael Maliso,
2006
.
F. Mazenc,
S. Niculescu,
J. Cheong,
2012
.
F. Mazenc,
2001
.
Frédéric Mazenc,
F. Mazenc,
2008,
Eur. J. Control.
Zhong-Ping Jiang,
F. Mazenc,
M. Malisoff,
2022,
European Journal of Control.
Wim Michiels,
Silviu-Iulian Niculescu,
Frédéric Mazenc,
2004
.
Zhong-Ping Jiang,
F. Mazenc,
M. Malisoff,
2021,
IFAC-PapersOnLine.
F. Mazenc,
M. Malisoff,
2022,
Eur. J. Control.
Miroslav Krstic,
Michael Malisoff,
Frédéric Mazenc,
2022,
IEEE Transactions on Automatic Control.
M. Krstić,
F. Mazenc,
M. Malisoff,
2021,
IFAC-PapersOnLine.
F. Mazenc,
M. Malisoff,
Michael A. Malisoff,
2014,
HRI 2014.
F. Mazenc,
M. Malisoff,
2012
.
F. Mazenc,
C. Bonnet,
W. Djema,
2016
.
F. Mazenc,
M. Malisoff,
L. Burlion,
2021
.
F. Mazenc,
M. Malisoff,
G. Robledo,
2018
.
F. Mazenc,
Saeed Ahmed,
2018
.
E. Fridman,
F. Mazenc,
H. Özbay,
2017
.
F. Mazenc,
M. Malisoff,
2021,
2021 60th IEEE Conference on Decision and Control (CDC).
F. Mazenc,
H. Ito,
M. Malisoff,
2022,
Mathematical Control and Related Fields.
F. Mazenc,
Olivier Bernard,
2022,
IEEE Transactions on Automatic Control.
Zhong-Ping Jiang,
F. Mazenc,
M. Malisoff,
2021,
2021 60th IEEE Conference on Decision and Control (CDC).
F. Mazenc,
D. Nešić,
2005,
CDC/ECC.
F. Mazenc,
M. Malisoff,
2005,
IEEE Transactions on Automatic Control.
F. Mazenc,
S. Niculescu,
S. Mondié,
2004
.
F. Mazenc,
C. Prieur,
2012,
Mathematics of Control, Signals, and Systems.
Control in dormancy or eradication of cancer stem cells: Mathematical modeling and stability issues.
Emilia Fridman,
Frédéric Mazenc,
Catherine Bonnet,
2018,
Journal of theoretical biology.
Frédéric Mazenc,
Catherine Bonnet,
Jean Clairambault,
2018,
2018 Annual American Control Conference (ACC).
Frédéric Mazenc,
Catherine Bonnet,
Jean Clairambault,
2016,
2016 IEEE 55th Conference on Decision and Control (CDC).
E. Richard,
Frédéric Mazenc,
F. Mazenc,
2001,
Syst. Control. Lett..
Frédéric Mazenc,
Hitay Özbay,
Saeed Ahmed,
2018,
Autom..
Frédéric Mazenc,
Hitay Özbay,
Saeed Ahmed,
2017,
2017 American Control Conference (ACC).
Michael Malisoff,
Frédéric Mazenc,
F. Mazenc,
2016,
2016 IEEE 55th Conference on Decision and Control (CDC).
Frédéric Mazenc,
Catherine Bonnet,
Jean Clairambault,
2017,
2017 American Control Conference (ACC).
Michael Malisoff,
Frédéric Mazenc,
F. Mazenc,
2012,
Journal of biological dynamics.
Michael Malisoff,
Frédéric Mazenc,
F. Mazenc,
2011,
IEEE Conference on Decision and Control and European Control Conference.
Frédéric Mazenc,
F. Mazenc,
1997
.
Claudio De Persis,
Frédéric Mazenc,
F. Mazenc,
2008,
Proceedings of the 48h IEEE Conference on Decision and Control (CDC) held jointly with 2009 28th Chinese Control Conference.
Frédéric Mazenc,
Laurent Praly,
L. Praly,
2000,
Autom..
Iasson Karafyllis,
Michael Malisoff,
Pierdomenico Pepe,
2016
.
Michael Malisoff,
Frédéric Mazenc,
Vincent Andrieu,
2015,
Autom..
Iasson Karafyllis,
Michael Malisoff,
Pierdomenico Pepe,
2015
.
Frédéric Mazenc,
Qinglei Hu,
Maruthi R. Akella,
2019,
IEEE Transactions on Control Systems Technology.
Frédéric Mazenc,
Maruthi R. Akella,
Sungpil Yang,
2017
.
Frédéric Mazenc,
Jean-Claude Vivalda,
F. Mazenc,
2004
.
Frédéric Mazenc,
Samuel Bowong,
F. Mazenc,
2002,
IEEE Trans. Autom. Control..
Frédéric Mazenc,
Samuel Bowong,
F. Mazenc,
2001,
Proceedings of the 40th IEEE Conference on Decision and Control (Cat. No.01CH37228).
Jérôme Harmand,
Frédéric Mazenc,
Miled El Hajji,
2010,
Mathematical biosciences and engineering : MBE.
Michael Malisoff,
Frédéric Mazenc,
F. Mazenc,
2017,
IEEE Transactions on Automatic Control.
Sabine Mondié,
Frédéric Mazenc,
Rogelio Francisco,
2004,
IEEE Transactions on Automatic Control.
Sabine Mondié,
Frédéric Mazenc,
Javier E. Pereyra Zamudio,
2021,
IFAC-PapersOnLine.
Nikolaos Bekiaris-Liberis,
Frédéric Mazenc,
Silviu-Iulian Niculescu,
2015,
2015 American Control Conference (ACC).
Frédéric Mazenc,
F. Mazenc,
2014,
2014 European Control Conference (ECC).
Michael Malisoff,
Frédéric Mazenc,
Silviu-Iulian Niculescu,
2014,
IEEE Transactions on Automatic Control.
Hiroshi Ito,
Frédéric Mazenc,
F. Mazenc,
2013,
IEEE Transactions on Automatic Control.
Hiroshi Ito,
Frédéric Mazenc,
F. Mazenc,
2012,
2012 American Control Conference (ACC).
Frédéric Mazenc,
Silviu-Iulian Niculescu,
Mounir Bekaik,
2011,
IEEE Conference on Decision and Control and European Control Conference.
Frédéric Mazenc,
Pierre-Alexandre Bliman,
P. Bliman,
2006,
IEEE Transactions on Automatic Control.
Emilia Fridman,
Frédéric Mazenc,
Catherine Bonnet,
2018,
2018 Annual American Control Conference (ACC).
Michael Malisoff,
Frédéric Mazenc,
F. Mazenc,
2016,
Autom..
Xi-Ming Sun,
Frédéric Mazenc,
Yue-E Wang,
2016,
Autom..
Michael Malisoff,
Frédéric Mazenc,
F. Mazenc,
2010,
Autom..
Jérôme Harmand,
Michael Malisoff,
Frédéric Mazenc,
2017,
Autom..
Jérôme Harmand,
Michael Malisoff,
Frédéric Mazenc,
2008,
IEEE Transactions on Automatic Control.
Frédéric Mazenc,
Jean-Claude Vivalda,
F. Mazenc,
2001,
2001 European Control Conference (ECC).
Michael Malisoff,
Frédéric Mazenc,
Laurent Burlion,
2019,
Syst. Control. Lett..
Michael Malisoff,
Frédéric Mazenc,
Marcio S. de Queiroz,
2009,
IEEE Transactions on Automatic Control.
Dragan Nesic,
Frédéric Mazenc,
F. Mazenc,
2004,
IEEE Transactions on Automatic Control.
A. Astolfi,
F. Mazenc,
1998
.
Michael Malisoff,
Frédéric Mazenc,
F. Mazenc,
2017,
Autom..
Michael Malisoff,
Frédéric Mazenc,
F. Mazenc,
2017,
Autom..
Iasson Karafyllis,
Michael Malisoff,
Pierdomenico Pepe,
2016
.
H. Nijmeijer,
F. Mazenc,
H. Nijmeijer,
2002,
Proceedings of the 41st IEEE Conference on Decision and Control, 2002..
Frédéric Mazenc,
Emilia Fridman,
Walid Djema,
2015,
Syst. Control. Lett..
Frédéric Mazenc,
Catherine Bonnet,
Bernard Cazelles,
2017
.
Michael Malisoff,
Frédéric Mazenc,
Marcio S. de Queiroz,
2011,
Autom..
Zongli Lin,
Michael Malisoff,
Frédéric Mazenc,
2007,
2007 American Control Conference.
Michael Malisoff,
Frederic Mazenc,
F. Mazenc,
2006,
math/0610210.
Jérôme Harmand,
Alain Rapaport,
Frédéric Mazenc,
2008
.
J. Harmand,
F. Mazenc,
A. Rapaport,
2007,
2007 American Control Conference.
R. Sepulchre,
M. Jankovic,
F. Mazenc,
1997,
Proceedings of the 36th IEEE Conference on Decision and Control.
Jérôme Harmand,
Alain Rapaport,
Frédéric Mazenc,
2004
.
Nicolas Petit,
Frédéric Mazenc,
Delphine Bresch-Pietri,
2018,
Autom..
Qingsong Liu,
Bin Zhou,
Frédéric Mazenc,
2017,
Autom..
Michael Malisoff,
Frédéric Mazenc,
Marcio S. de Queiroz,
2006,
2006 American Control Conference.
James Lam,
Bin Zhou,
Frédéric Mazenc,
2021,
IEEE Transactions on Automatic Control.
Sabine Mondié,
Frédéric Mazenc,
Silviu-Iulian Niculescu,
2004,
Syst. Control. Lett..
Olivier Bernard,
Frédéric Mazenc,
F. Mazenc,
2011,
Autom..
F. Mazenc,
M. Malisoff,
L. Burlion,
2020,
International Journal of Robust and Nonlinear Control.
Michael Malisoff,
Laurent Burlion,
Frédéric Mazenc,
2020,
Syst. Control. Lett..
Michael Malisoff,
Laurent Burlion,
Frédéric Mazenc,
2019,
2019 IEEE 58th Conference on Decision and Control (CDC).
Frédéric Mazenc,
Christophe Prieur,
F. Mazenc,
2012,
Mathematics of Control, Signals, and Systems.
Michael Malisoff,
Frédéric Mazenc,
F. Mazenc,
2014,
53rd IEEE Conference on Decision and Control.
Frédéric Mazenc,
Silviu-Iulian Niculescu,
Thach Ngoc Dinh,
2013,
Autom..
Frédéric Mazenc,
Silviu-Iulian Niculescu,
Thach Ngoc Dinh,
2012,
2012 IEEE 51st IEEE Conference on Decision and Control (CDC).
Olivier Bernard,
Frédéric Mazenc,
F. Mazenc,
2010,
IEEE Transactions on Automatic Control.
Olivier Bernard,
Frédéric Mazenc,
Silviu-Iulian Niculescu,
2012,
SIAM J. Control. Optim..
Anil Kumar Pal,
F. Mazenc,
T. N. Dinh,
2023,
IEEE Transactions on Automatic Control.
Michael Malisoff,
Frédéric Mazenc,
Miroslav Krstic,
2021,
Autom..
Michael Malisoff,
Frédéric Mazenc,
Saeed Ahmed,
2020,
Autom..
Michael Malisoff,
Frederic Mazenc,
Saeed Ahmed,
2019,
2019 American Control Conference (ACC).
Michael Malisoff,
Frédéric Mazenc,
Saeed Ahmed,
2018,
2018 IEEE Conference on Decision and Control (CDC).
Michael Malisoff,
Frédéric Mazenc,
Laurent Burlion,
2018,
Eur. J. Control.
Frédéric Mazenc,
Victor Gibert,
Laurent Burlion,
2018,
2018 Annual American Control Conference (ACC).
Michael Malisoff,
Frédéric Mazenc,
Victor Gibert,
2017,
CDC 2017.
Frédéric Mazenc,
Catherine Bonnet,
Walid Djema,
2017,
Syst. Control. Lett..
Michael Malisoff,
Frédéric Mazenc,
Jerome Weston,
2016,
2016 IEEE 55th Conference on Decision and Control (CDC).
Frédéric Mazenc,
Catherine Bonnet,
Walid Djema,
2016,
2016 American Control Conference (ACC).
Michael Malisoff,
Frédéric Mazenc,
F. Mazenc,
2016,
2016 American Control Conference (ACC).
F. Mazenc,
Michael A. Malisoff,
2016
.
F. Mazenc,
M. Malisoff,
Michael A. Malisoff,
2016,
Autom..
Michael Malisoff,
Frédéric Mazenc,
F. Mazenc,
2016,
IEEE Transactions on Automatic Control.
Frédéric Mazenc,
Maruthi R. Akella,
Sungpil Yang,
2015,
2015 European Control Conference (ECC).
Michael Malisoff,
Frédéric Mazenc,
F. Mazenc,
2015,
2015 European Control Conference (ECC).
Frédéric Mazenc,
Catherine Bonnet,
Walid Djema,
2015,
2015 European Control Conference (ECC).
Frédéric Mazenc,
Maruthi R. Akella,
Sungpil Yang,
2015,
2015 American Control Conference (ACC).
Michael Malisoff,
Frédéric Mazenc,
F. Mazenc,
2015,
IEEE Transactions on Automatic Control.
Frédéric Mazenc,
F. Mazenc,
2015,
IEEE Transactions on Automatic Control.
Emilia Fridman,
Frédéric Mazenc,
E. Fridman,
2014,
53rd IEEE Conference on Decision and Control.
Frédéric Mazenc,
Silviu-Iulian Niculescu,
Thach Ngoc Dinh,
2014,
2014 European Control Conference (ECC).
Michael Malisoff,
Frédéric Mazenc,
F. Mazenc,
2014,
2014 American Control Conference.
Michael Malisoff,
Frédéric Mazenc,
F. Mazenc,
2014,
2014 American Control Conference.
Frédéric Mazenc,
Maruthi R. Akella,
F. Mazenc,
2014,
2014 American Control Conference.
Michael Malisoff,
Frédéric Mazenc,
F. Mazenc,
2014,
IEEE Transactions on Automatic Control.
Michael Malisoff,
Frédéric Mazenc,
Silviu-Iulian Niculescu,
2013,
52nd IEEE Conference on Decision and Control.
Hiroshi Ito,
Pierdomenico Pepe,
Frédéric Mazenc,
2013,
52nd IEEE Conference on Decision and Control.
Michael Malisoff,
Frédéric Mazenc,
Thach Ngoc Dinh,
2013,
2013 American Control Conference.
Michael Malisoff,
Frédéric Mazenc,
Thach Ngoc Dinh,
2013,
Autom..
Dorothée Normand-Cyrot,
Frédéric Mazenc,
D. Normand-Cyrot,
2013,
IEEE Transactions on Automatic Control.
Olivier Bernard,
Frédéric Mazenc,
F. Mazenc,
2012,
2012 IEEE 51st IEEE Conference on Decision and Control (CDC).
Dorothée Normand-Cyrot,
Frédéric Mazenc,
D. Normand-Cyrot,
2012,
2012 IEEE 51st IEEE Conference on Decision and Control (CDC).
Michael Malisoff,
Frédéric Mazenc,
Aleksandra Gruszka,
2012
.
Michael Malisoff,
Frédéric Mazenc,
Aleksandra Gruszka,
2012,
2012 American Control Conference (ACC).
Fumin Zhang,
Michael Malisoff,
Frédéric Mazenc,
2012,
IEEE Transactions on Automatic Control.
Frédéric Mazenc,
Christophe Prieur,
F. Mazenc,
2011,
IEEE Conference on Decision and Control and European Control Conference.
Frédéric Mazenc,
Silviu-Iulian Niculescu,
Mounir Bekaik,
2011,
SIAM J. Control. Optim..
Michael Malisoff,
Frederic Mazenc,
Aleksandra Gruszka,
2011,
Proceedings of the 2011 American Control Conference.
Fumin Zhang,
Michael Malisoff,
Frederic Mazenc,
2011,
Proceedings of the 2011 American Control Conference.
Tewfik Sari,
Frederic Mazenc,
T. Sari,
2011,
Mathematical biosciences and engineering : MBE.
Michael Malisoff,
Marcio S. de Queiroz,
Frédéric Mazenc,
2010,
Proceedings of the 2010 American Control Conference.
Zhong-Ping Jiang,
Frédéric Mazenc,
Zhong-Ping Jiang,
2010,
IEEE Transactions on Automatic Control.
Michael Malisoff,
Frederic Mazenc,
F. Mazenc,
2009,
2009 American Control Conference.
F. Mazenc,
H. Ito,
Michael A. Malisoff,
2022,
Discrete & Continuous Dynamical Systems - B.
Michael Malisoff,
Frédéric Mazenc,
Aleksandra Gruszka,
2013,
IEEE Transactions on Automatic Control.
Frédéric Mazenc,
Silviu-Iulian Niculescu,
Mounir Bekaik,
2013,
IEEE Transactions on Automatic Control.
Frédéric Mazenc,
Christophe Prieur,
F. Mazenc,
2011
.
Michael Malisoff,
Frédéric Mazenc,
F. Mazenc,
2011
.
F. Mazenc,
2011
.
Kristin Ytterstad Pettersen,
Henk Nijmeijer,
Frédéric Mazenc,
2004,
IEEE Transactions on Control Systems Technology.
Alessandro Astolfi,
Frédéric Mazenc,
A. Astolfi,
1999
.
J. Harmand,
F. Mazenc,
M. Malisoff,
2007,
2007 American Control Conference.
Dragan Nesic,
Frédéric Mazenc,
F. Mazenc,
2007,
Proceedings of the 44th IEEE Conference on Decision and Control.
Michael Malisoff,
Frederic Mazenc,
F. Mazenc,
2019,
2019 American Control Conference (ACC).
Alain Rapaport,
Frédéric Mazenc,
Claude Lobry,
2005
.
Alain Rapaport,
Frédéric Mazenc,
Claude Lobry,
2007
.
Frédéric Mazenc,
S.-I. Nuculescu,
F. Mazenc,
2000,
Proceedings of the 39th IEEE Conference on Decision and Control (Cat. No.00CH37187).
Control in dormancy or eradication of cancer stem cells: Mathematical modeling and stability issues.
E. Fridman,
F. Mazenc,
J. Clairambault,
2018,
Journal of Theoretical Biology.
Frédéric Mazenc,
F. Mazenc,
2003,
Autom..
F. Mazenc,
2004
.
F. Mazenc,
C. Prieur,
2012,
Mathematics of Control, Signals, and Systems.
Iasson Karafyllis,
Michael Malisoff,
Pierdomenico Pepe,
2016
.
Michael Malisoff,
Frédéric Mazenc,
Hitay Özbay,
2018,
SIAM J. Control. Optim..
Frédéric Mazenc,
Samuel Bowong,
F. Mazenc,
2004,
Proceedings of the 44th IEEE Conference on Decision and Control.
Frédéric Mazenc,
Javier Pereyra Zamudio,
Sabine Mondie Cuzange,
2020,
IFAC-PapersOnLine.
Michael Malisoff,
Frédéric Mazenc,
Laurent Burlion,
2018
.
Eric Walter,
Frédéric Mazenc,
Michel Kieffer,
2012,
2012 American Control Conference (ACC).
Rogelio Lozano,
Robert Mahony,
Frédéric Mazenc,
2003,
42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475).
Michael Malisoff,
Frédéric Mazenc,
Marcio S. de Queiroz,
2010,
49th IEEE Conference on Decision and Control (CDC).
F. Mazenc,
S. Mondie,
R. Francisco,
2003,
42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475).
Frédéric Mazenc,
Pedro Gajardo,
Federico Santa,
2009
.
Hiroshi Ito,
Frédéric Mazenc,
F. Mazenc,
2012,
2012 American Control Conference (ACC).
Hiroshi Ito,
Frédéric Mazenc,
F. Mazenc,
2016
.
Frédéric Mazenc,
Samuel Bowong,
F. Mazenc,
2003,
Autom..
Michael Malisoff,
Frederic Mazenc,
Miroslav Krstic,
2021,
IEEE Control Systems Letters.
Michael Malisoff,
Frédéric Mazenc,
Saeed Ahmed,
2019,
Syst. Control. Lett..
Frédéric Mazenc,
Silviu-Iulian Niculescu,
F. Mazenc,
2011,
Autom..
Miroslav Krstic,
Frédéric Mazenc,
Silviu-Iulian Niculescu,
2012,
Autom..
Michael Malisoff,
Frédéric Mazenc,
F. Mazenc,
2016,
Syst. Control. Lett..
F. Mazenc,
H. Özbay,
C. Bonnet,
2023,
2023 European Control Conference (ECC).
Emilia Fridman,
Frédéric Mazenc,
Jose Louis Avila Alonso,
2014,
53rd IEEE Conference on Decision and Control.
Emilia Fridman,
Frédéric Mazenc,
Catherine Bonnet,
2016,
Syst. Control. Lett..
Frédéric Mazenc,
Silviu-Iulian Niculescu,
Peter S. Kim,
2008,
2008 47th IEEE Conference on Decision and Control.