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I. Invited plenary talks |
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Extremal sparsity property of the Jordan canonical form,
PDF file
The 8th conference of China matrix theory and applications,
Taiyuan Normal University, Taiyuan, China
July 16-18, 2008
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On nonnegative imprimitive matrices,
PDF file
The 7th conference of China matrix theory and applications,
University of Electronic Science and Technology, Chengdu, China
July 17-20, 2006
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Extremal eigenvalues of real symmetric matrices with entries in an interval,
PDF file
The 12th conference of the International Linear Algebra Society,
University of Regina, Canada,
June 26-29, 2005
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Submultiplicativity vs subadditivity for unitarily invariant norms,
The 6th conference of China matrix theory and applications,
Heilongjiang University, Harbin, China
July 18-20, 2004
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On the unitary orbit of complex matrices,
The 5th conference of China matrix theory and applications,
Shanghai University, Shanghai, China
August 14-18, 2002
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Inequalities for unitarily invariant norms,
The 3rd conference of China matrix theory and applications,
Zhang Jia Jie, China
August 8-13, 1998
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II. Invited 45-minute talk |
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Open Problems in Matrix Theory,
PDF file
The 4th International Congress of Chinese Mathematicians，
Zhejiang University, Hangzhou, China
Dec. 17-22, 2007
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III. Invited 40-minute talk |
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Sparsity of matrix canonical forms,
PDF file
The 6th Asian Mathematical Conference, Busan, Korea
June 30-July 4, 2013
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IV. Invited ILAS lecture |
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Unsolved Matrix Problems,
PDF file
Advanced Workshop on Trends and Developments in Linear Algebra，
ICTP, Trieste, Italy
July 6-10, 2009
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V. Invited 30-minute talk |
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Digraphs that have at most one walk of a given length with the same endpoints,
PDF file
The 4th National Conference on Combinatorial Mathematics and Graph Theory,
Xuzhou Normal University, Xuzhou, China
August 22-25, 2010
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Extremal digraphs whose walks with the same initial and terminal
vertices have distinct lengths,
PDF file
Workshop on Positive Matrices and Operators: Recent Developments and Advances,
Kyungpook National University, Daegu, Korea
June 24-28, 2012
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Extremal sparsity of the companion matrix of a polynomial,
PDF file
International Workshop on Matrices and Operators,
Beijing Normal University, Beijing
July 15-18, 2013
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