Trond Steihaug

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Graph models and their efficient implementation for sparse Jacobian matrix determination

Shahadat Hossain, Trond Steihaug, T. Steihaug, 2013, Discret. Appl. Math..

Global convergence and the Powell singular function

Trond Steihaug, Sara Suleiman, 2013, J. Glob. Optim..

Practical methods of optimization volume 1 : Unconstrained optimization, by R. Flet-cher, Wiley, New York, 1980, 120 pp. Price: $24.50

Trond Steihaug, 1982, Networks.

A generic primal–dual interior-point method for semidefinite optimization based on a new class of kernel functions

Trond Steihaug, Kees Roos, Mohamed El Ghami, 2010, Optim. Methods Softw..

Elsevier Editorial System(tm) for Journal of Computational and Applied Mathematics Manuscript Draft Title: on Diagonally Structured Problems in Unconstrained Optimization Using an Inexact Super Halley Method on Diagonally Structured Problems in Unconstrained Optimization Using an Inexact Super Halle

Trond Steihaug, Geir Gundersen, T. Steihaug, 2022 .

Generating a synthetic diffusion tensor dataset

Arvid Lundervold, Trond Steihaug, Ørjan Bergmann, 2005, 18th IEEE Symposium on Computer-Based Medical Systems (CBMS'05).

Structured computation in optimization and algorithmic differentiation

Shahadat Hossain, Trond Steihaug, Laurent Hascoët, 2013, ACCA.

Asynchronous Methods and Least Squares: An Example of Deteriorating Convergence

Trond Steihaug, Yasemin Yalçinkaya, 1999 .

Surrogate-based model parameter optimization based on gas explosion experimental data

Trond Steihaug, Jan-J. Rückmann, Anna-Lena Both, 2019 .

Graph coloring in the estimation of sparse derivative matrices: Instances and applications

Shahadat Hossain, Trond Steihaug, T. Steihaug, 2008, Discret. Appl. Math..

A Generating Set Search Method Exploiting Curvature and Sparsity

Trond Steihaug, Lennart Frimannslund, 2004 .

On the final steps of Newton and higher order methods

Trond Steihaug, Sara Suleiman, T. Steihaug, 2016, Optim. Lett..

Sparsity issues in the computation of Jacobian matrices

Shahadat Hossain, Trond Steihaug, 2002, ISSAC '02.

Primal-dual algorithm for linear optimization problems based on a new class of kernel functions

Trond Steihaug, Ivan Ivanov, Kees Roos, 2008, 2008 IEEE Symposium on Computers and Communications.

On The Use of Java Arrays for Sparse Matrix Computations

Trond Steihaug, Geir Gundersen, T. Steihaug, 2003, PARCO.

A minimum requiring angle trisection

Trond Steihaug, D. G. Rogers, 2009 .

Data structures in Java for matrix computations

Trond Steihaug, Geir Gundersen, T. Steihaug, 2004, Concurr. Pract. Exp..

Optimal direct determination of sparse Jacobian matrices

Shahadat Hossain, Trond Steihaug, T. Steihaug, 2013, Optim. Methods Softw..

Reducing the Deteriorating Effect of Old History in Asynchronous Iterations

Trond Steihaug, Yasemin Yalçinkaya, T. Steihaug, 2004, Euro-Par.

Interior-point methods for linear optimization based on a kernel function with a trigonometric barrier term

Trond Steihaug, Mohamed El Ghami, Z. A. Guennoun, 2012, J. Comput. Appl. Math..

Sparsity in higher order methods for unconstrained optimization

Trond Steihaug, Geir Gundersen, T. Steihaug, 2012, Optim. Methods Softw..

Computational and sensitivity aspects of eigenvalue-based methods for the large-scale trust-region subproblem

Trond Steihaug, Marielba Rojas, Bjørn H. Fotland, 2011, Optim. Methods Softw..

PRIMAL-DUAL ALGORITHMS FOR SEMIDEFINITE OPTIMIZATION PROBLEMS BASED ON KERNEL-FUNCTION WITH TRIGONOMETRIC BARRIER TERM

Trond Steihaug, G. Q. Wang, G. Q. Wang, 2019, International Journal of Apllied Mathematics.

Local and superlinear convergence for truncated iterated projections methods

Trond Steihaug, 1983, Math. Program..

A test problem generator for large-scale unconstrained optimization

Trond Steihaug, Ron S. Dembo, 1985, TOMS.

Truncated-newtono algorithms for large-scale unconstrained optimization

Trond Steihaug, Ron S. Dembo, R. Dembo, 1983, Math. Program..

Data structures in Java for matrix computations: Research Articles

Trond Steihaug, Geir Gundersen, 2004 .

A REVIEW OF TERMINATION RULES OF AN INEXACT PRIMAL-DUAL INTERIOR POINT METHOD FOR LINEAR PROGRAMMING PROBLEMS

Trond Steihaug, Venansius Baryamureeba, Mohamed El Ghami, 2018 .

On the Convergence of an Inexact Primal-Dual Interior Point Method for Linear Programming

Trond Steihaug, Venansius Baryamureeba, T. Steihaug, 2005, LSSC.

Local Analysis of Inexact Quasi-Newton Methods

Trond Steihaug, Stanley C. Eisenstat, 1982 .

Approximating cube roots of integers, after Heron's Metrica III.20 pdf

Trond Steihaug, D. G. Rogers, T. Steihaug, 2019, ArXiv.

On solving large sparse linear systems arising from linear programming

Trond Steihaug, Venansius Baryamureeba, 2018 .

Adaptive Curve Tailoring

Trond Steihaug, Wenli Wang, 2013, ISCIS.

Solving trust-region subproblem augmented with linear inequality constraints

Trond Steihaug, Ørjan Bergmann, 2013, Optim. Methods Softw..

Structure in Optimization: Factorable Programming and Functions

Shahadat Hossain, Trond Steihaug, Laurent Hascoët, 2012, ISCIS.

Kernel-function Based Primal-Dual Algorithms for P * ( κ) Linear Complementarity Problems

Trond Steihaug, Mohamed El Ghami, 2010, RAIRO Oper. Res..

Computational Issues for a New Class of Preconditioners

Trond Steihaug, Venansius Baryamureeba, 1999, LSSC.

Please Scroll down for Article Optimization Methods and Software on Large-scale Unconstrained Optimization Problems and Higher Order Methods on Large-scale Unconstrained Optimization Problems and Higher Order Methods

Trond Steihaug, Geir Gundersen, T. Steihaug, 2022 .

Deteriorating Convergence for Asynchronous Methods on Linear Least Sqare Problems

Trond Steihaug, Yasemin Yalçinkaya, 1997, Euro-Par.

An Analytical Model for a Class of Architectures under Master-Slave Paradigm

Trond Steihaug, Yasemin Yalçinkaya, 2000, HPCN Europe.

Primal-dual interior-point methods solver based on kernel functions for Linear Optimization

Trond Steihaug, Ivan Ivanov, Mohamed El Ghami, 2009, 2009 International Multiconference on Computer Science and Information Technology.

The CPR Method and Beyond : Prologue

Shahadat Hossain, Trond Steihaug, 2009, Combinatorial Scientific Computing.

A generating set search method using curvature information

Trond Steihaug, Lennart Frimannslund, T. Steihaug, 2007, Comput. Optim. Appl..

A Class of Methods Combining L-BFGS and Truncated Newton

Trond Steihaug, Lennart Frimannslund, 2011, ISCIS.

A parametrized stock-recruitment relationship derived from a slow-fast population dynamic model

Trond Steihaug, Sam Subbey, Ute Schaarschmidt, 2018, Math. Comput. Simul..

Computing Sparse Jacobian Matrices Optimally

Shahadat Hossain, Shahadat Hossain, Trond Steihaug, 2006 .

A subclass of generating set search with convergence to second-order stationary points

Trond Steihaug, Mark A. Abramson, Lennart Frimannslund, 2014, Optim. Methods Softw..

A New Generating Set Search Method for Unconstrained Optimisation

Trond Steihaug, Lennart Frimannslund, 2004 .

Large-scale optimization techniques for nonnegative image restorations

Trond Steihaug, Marielba Rojas, 2002, SPIE Optics + Photonics.

Application of a Class of Preconditioners to Large Scale Linear Programming Problems

Yin Zhang, Trond Steihaug, Venansius Baryamureeba, 1999, Euro-Par.

Derivative-Free Optimization for Population Dynamic Models

Trond Steihaug, Sam Subbey, Ute Schaarschmidt, 2015, MCO.

Algorithm for forming derivative-free optimal methods

Trond Steihaug, Sanjay K. Khattri, 2013, Numerical Algorithms.

Computational science in the eighteenth century. Test cases for the methods of Newton, Raphson, and Halley: 1685 to 1745

Trond Steihaug, 2019, Numerical Algorithms.

On the Component-Wise Convergence Rate

Trond Steihaug, Amr El-Bakry, 1998 .

Rate of convergence of higher order methods

Trond Steihaug, Sara Suleiman, T. Steihaug, 2013 .

Halley and Newton are one step apart

Trond Steihaug, Geir Gundersen, T. Steihaug, 2007 .

A New Generating Set Search Algorithm for Partially Separable Functions

Trond Steihaug, Lennart Frimannslund, T. Steihaug, 2010 .

Notes on Invariance of Higher Order Methods Under Linear Transformation

Trond Steihaug, Sara Suleiman, T. Steihaug, 2011 .

Some computational aspects in the numerical solution of parabolic equations

Owe Axelsson, Trond Steihaug, 1978 .

Damped Inexact Quasi-Newton Methods

Trond Steihaug, 1981 .

A polynomial-time algorithm for linear optimization based on a new class of kernel functions

Trond Steihaug, Cornelis Roos, M. El Ghami, 2009 .

On the successive projections approach to least-squares problems

Trond Steihaug, T. Steihaug, J E Dennis, 1986 .

A Class of Preconditioners for Weighted Least Squares Problems

Trond Steihaug, Venansius Baryamureeba, Yin Zhang, 1999 .

BIT Numerical Mathematics: Editorial

Raymond H. Chan, A. C. Damhaug, Dimitri Breda, 2005 .

On a New Method for Derivative Free Optimization

Trond Steihaug, Lennart Frimannslund, T. Steihaug, 2011 .

On the Sparse and Symmetric Least-Change Secant Update*

Trond Steihaug, 1984 .

Sparsity of the Average Curvature Information Matrix

Trond Steihaug, Lennart Frimannslund, 2007 .

An interior-point trust-region-based method for large-scale non-negative regularization

Trond Steihaug, Marielba Rojas, T. Steihaug, 2002 .

A polynomial-time algorithm for LO based on generalized logarithmic barrier functions

Trond Steihaug, Cornelis Roos, Mohamed El Ghami, 2008 .

Graph coloring and the estimation of sparse Jacobian matrices with segmented columns

Trond Steihaug, A. K. M. Shahadat Hossain, 1992 .

Solving a TRS which has linear inequality constraints

Trond Steihaug, Ørjan Bergmann, 2008 .