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Department of Mathematics

Subspace Technique for Nonlinear Optimization

Professor Ya-xiang Yuan

Institute of Computational Mathematics and Scientific/Engineering Computing,
Chinese Academy of Sciences
Academician of Chinese Academy of Sciences
AMS Fellow, 2012
SIAM Fellow, 2011
Awardee of Chern Shiing S. Mathematics Award
Awardee of Feng Kang Prize, 1995
Awardee of L. Fox Award, 1985


Date: 4 January 2013 (Friday)

4:30pm - 5:30pm (Preceded by Reception at 4:00pm)


RRS905, Sir Run Run Shaw Building,
Ho Sin Hang Campus, Hong Kong Baptist University



In this talk, we review various subspace techniques that are used in constructing of numerical methods for nonlinear optimization. The subspace techniques are getting more and more important as the optimization problems we have to solve are getting larger and larger in scale. Subspace techniques have the advantage of reducing both computation cost and memory size. The essential part of a subspace method is how to choose the subspace in which the trial step or the trust region should belong. Examples of applications of subspace techniques are also presented.




All are welcome