An algorithm for solving linearly constrained optimization problems. - Roger Fletcher (Math. Program., 1972)

An exact penalty function for nonlinear programming with inequalities. - Roger Fletcher (Math. Program., 1973)

First and second order conditions for a class of nondifferentiable optimization problems. - Roger Fletcher; G. Alistair Watson (Math. Program., 1980)

Stable modification of explicitLU factors for simplex updates. - Roger Fletcher; S. P. J. Matthews (Math. Program., 1984)

Nonlinear programming and nonsmooth optimization by successive linear programming. - Roger Fletcher; Eduardo Sáinz de la Maza (Math. Program., 1989)

A New Variational Result for Quasi-Newton Formulae. - Roger Fletcher (SIAM J. Optim., 1991)

Ordering algorithms for irreducible sparse linear systems. - Roger Fletcher; J. A. J. Hall (Ann. Oper. Res., 1993)

Solving mixed integer nonlinear programs by outer approximation. - Roger Fletcher; Sven Leyffer (Math. Program., 1994)

An Optimal Positive Definite Update for Sparse Hessian Matrices. - Roger Fletcher (SIAM J. Optim., 1995)

On the Stability of Null-Space Methods for KKT Systems. - Roger Fletcher; Tom Johnson (SIAM J. Matrix Anal. Appl., 1997)

A New Degeneracy Method and Steepest-Edge-Based Conditioning for LP. - Roger Fletcher (SIAM J. Optim., 1998)

Numerical Experience with Lower Bounds for MIQP Branch-And-Bound. - Roger Fletcher; Sven Leyffer (SIAM J. Optim., 1998)

Stable reduced Hessian updates for indefinite quadratic programming. - Roger Fletcher (Math. Program., 2000)

Nonlinear programming without a penalty function. - Roger Fletcher; Sven Leyffer (Math. Program., 2002)

Global Convergence of a Trust-Region SQP-Filter Algorithm for General Nonlinear Programming. - Roger Fletcher; Nicholas I. M. Gould; Sven Leyffer; Philippe L. Toint; Andreas Wächter (SIAM J. Optim., 2002)

On the Global Convergence of a Filter–SQP Algorithm. - Roger Fletcher; Sven Leyffer; Philippe L. Toint (SIAM J. Optim., 2002)

On the global convergence of an SLP-filter algorithm that takes EQP steps. - Choong Ming Chin; Roger Fletcher (Math. Program., 2003)

Solving mathematical programs with complementarity constraints as nonlinear programs. - Roger Fletcher; Sven Leyffer (Optim. Methods Softw., 2004)

A New Low Rank Quasi-Newton Update Scheme for Nonlinear Programming. - Roger Fletcher (System Modelling and Optimization, 2005)

On the asymptotic behaviour of some new gradient methods. - Yu-Hong Dai; Roger Fletcher (Math. Program., 2005)

Projected Barzilai-Borwein methods for large-scale box-constrained quadratic programming. - Yu-Hong Dai; Roger Fletcher (Numerische Mathematik, 2005)

New algorithms for singly linearly constrained quadratic programs subject to lower and upper bounds. - Yu-Hong Dai; Roger Fletcher (Math. Program., 2006)

Local Convergence of SQP Methods for Mathematical Programs with Equilibrium Constraints. - Roger Fletcher; Sven Leyffer; Danny Ralph; Stefan Scholtes (SIAM J. Optim., 2006)

Binary separation and training support vector machines. - Roger Fletcher; Gaetano Zanghirati (Acta Numer., 2010)

A nonmonotone filter method for nonlinear optimization. - Chungen Shen; Sven Leyffer; Roger Fletcher (Comput. Optim. Appl., 2012)

A limited memory steepest descent method. - Roger Fletcher (Math. Program., 2012)

A Sequential Linear Constraint Programming Algorithm for NLP. - Roger Fletcher (SIAM J. Optim., 2012)

On Wolfe's Method for Resolving Degeneracy in Linearly Constrained Optimization. - Roger Fletcher (SIAM J. Optim., 2014)