World's Best Scientists 2026 revealed!

D-Index & Metrics

Mathematics

D-Index
48
Citations
49158
World Ranking
1169
National Ranking
90

Engineering and Technology

D-Index
47
Citations
48899
World Ranking
4710
National Ranking
308

Overview

Roger Fletcher was affiliated with the University of Dundee in the United Kingdom. Their academic career was connected to this institution, where they presumably engaged in research and teaching activities.

Details of Roger Fletcher's publication record indicate no documented recent papers, co-authors, or frequent publication venues available for review. There is also no specific information about main or subfields of study, or topics related to their research work.

Information regarding book publications or awards received by Roger Fletcher is not available from the provided data. This absence extends to the listing of any notable research contributions or recognitions during their career.

Roger Fletcher is deceased. The available information primarily situates them within the University of Dundee, with limited additional data on their scientific outputs or collaborations.

Best Publications

  • Practical Methods of Optimization

    Roger Fletcher

  • A Rapidly Convergent Descent Method for Minimization

    R. Fletcher;M. J. D. Powell

  • Function minimization by conjugate gradients

    R. Fletcher;C. M. Reeves

  • Practical Methods of Optimization.

    Christoph Witzgall;R. Fletcher

  • A new approach to variable metric algorithms

    R. Fletcher

  • Nonlinear programming without a penalty function

    Roger Fletcher;Sven Leyffer

  • Conjugate gradient methods for indefinite systems

    R. Fletcher

  • Solving mixed integer nonlinear programs by outer approximation

    Roger Fletcher;Sven Leyffer

  • On the Global Convergence of a Filter--SQP Algorithm

    Roger Fletcher;Sven Leyffer;Philippe L. Toint

  • Global Convergence of a Trust-Region SQP-Filter Algorithm for General Nonlinear Programming

    Roger Fletcher;Nicholas I. M. Gould;Sven Leyffer;Philippe L. Toint

  • Projected Barzilai-Borwein methods for large-scale box-constrained quadratic programming

    Yu-Hong Dai;Roger Fletcher

  • Local Convergence of SQP Methods for Mathematical Programs with Equilibrium Constraints

    Roger Fletcher;Sven Leyffer;Danny Ralph;Stefan Scholtes

  • On the Barzilai-Borwein Method

    Roger Fletcher

  • Numerical Experience with Lower Bounds for MIQP Branch-And-Bound

    Roger Fletcher;Sven Leyffer

  • Solving mathematical programs with complementarity constraints as nonlinear programs

    Roger Fletcher;Sven Leyffer

  • Function Minimization Without Evaluating Derivatives—a Review

    R. Fletcher

  • New algorithms for singly linearly constrained quadratic programs subject to lower and upper bounds

    Yu-Hong Dai;Roger Fletcher

  • On the global convergence of an SLP-filter algorithm that takes EQP steps

    Choong Ming Chin;Roger Fletcher

  • An Ideal Penalty Function for Constrained Optimization

    Unknown

  • An exact penalty function for nonlinear programming with inequalities

    Roger Fletcher

  • New iterative methods for solution of the eigenproblem

    W. W. Bradbury;R. Fletcher

Frequent Co-Authors

Sven Leyffer
Sven Leyffer Argonne National Laboratory
Philippe L. Toint
Philippe L. Toint University of Namur
Yu-Hong Dai
Yu-Hong Dai Chinese Academy of Sciences
Nicholas I. M. Gould
Nicholas I. M. Gould University of Oxford
Arieh Iserles
Arieh Iserles University of Cambridge
M. J. D. Powell
M. J. D. Powell University of Cambridge

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Best Scientists Citing Roger Fletcher