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Employment:
1-10.1988 Post Doc. FIM,
ETH-Zürich;
10.1988 – 12.1990 Associate Professor at Nankai Institute of
Mathematics, Nankai Univ.;
12.1990 - now Full Professor at Nankai Institute
of Mathematics, Nankai Univ. (Nankai Inst. of Math. changed its name to Chern
Institute of Mathematics in 2005).
Research Interests:
Hamiltonian
dynamics,Variational methods, Symplectic geometry,Riemannian and Finsler
geometry.
Selected Awards and
honouries:
1987 Dissertation
Award, Sigma-Xi Research Association, Wisconsin Chapter;
1996 Excellent
Young Scholar Award, Hong Kong Qiu Shi Science and Technology
foundation;
1998 Shiing-Shen Chern Award, Chinese Mathematical
Society;
2000 Yangzi River Award Program specially hired professorship, the
Ministry of Education of China;
2003 Award for Advances in Science and
Technology (First class), by the Ministry of Education of China;
2004
National Award in Natural Science of China (Second class), by the State Council
of China;
2004 TWAS Award in Mathematics, by the Third World Academy of
Sciences (TWAS);
2007 Member of the Chinese Academy of Sciences;
2008
Fellow of the Academy of Sciences for the Developing World (TWAS);
2012
Fellow of the American Mathematical Society.
Selected Academic Services and Functions:
Dean of School of Mathematics, Nankai University, 1998-2003;
President of Tianjin Mathematical Society, 2002-2010;
Vice President of
Chinese Mathematical Society, 2004-2011;
Representative in the Pacific Rim
Mathematical Association, 2005-2009;
Director of Chern Institute of
Mathematics, Nankai University, 2008-6.2012;
Vice Chairman of the Academic
Committee of Nankai University, since 2008;
Vice Chairman of Tianjin
Association of Science and Technology, since 2009;
Member of the Executive
Committee of International Mathematical Union, since 2011;
Editor/Editorial
board member: Chinese Annals of Mathematics, Advanced Nonlinear Studies, Acta
Mathematica Sinica, Frontiers of Mathematics in China, Communications on Pure
and Applied Analysis.
Selected address
Plenary address, 2010 Chinese
Math. Soc. and Korea Math. Soc. joint Conference and the Annul Conference
of
Chinese Math. Soc., Chongqing, 2010;
Invited speaker, Symplectic Geometry
Session, Congress of the Pacific Rim Mathematical Association, 2009;
Invited
speaker, The TWAS 16th conference, Alexsandra, 2005;
Invited speaker,
International Congress of Mathematicians, Beijing, 2002;
Plenary address,
International Congress of Chinese Mathematicians, Taipei, 2001;
Plenary
address, SIAM Conference on Dynamical Systems, Maui, 2000;
Selected publications
[1] Multiple solutions
of perturbed superquadratic second order Hamiltonian systems. Trans. Amer.
Math. Soc. 311 (1989) 749-780.
[2] Maslov-type index, degenerate
critical points, and asymptotically linear Hamiltonian systems. Science in
China. Series A. 33 (1990) 1409-1419.
[3] Bott formula of the
Maslov-type index theory. Pacific J. Math. 187 (1999), 113-149.
[4]
Precise iteration formulae of the Maslov-type index theory and ellipticity of
closed characteristics. Advances in Math. 154 (2000) 76-131.
[5]
(Joint with Chaofeng Zhu) Closed characteristics on compact convex hypersurfaces
in R2n. Annals of Mathematics. 155 (2002). 317-368.
[6] Index Theory
for Symplectic Paths with Applications. Progress in Math. 207, Birkh?user.
Basel. 2002.
[7] Multiplicity and stability of closed geodesics on Finsler
2-spheres. J. of Euro. Math. Soc. 8 (2006) 341-353.
[8] (Joint with
Wei Wang, Xijun Hu) Resonance identity, stability and multiplicity of closed
characteristics on compact convex hypersurfaces. Duke Math. J. 139
(2007) 411-462.
[9] (Joint with Huagui Duan) Multiple closed geodesics on
3-spheres. Advances in Math. 221 (2009) 1757-1803.
[10] (Joint with
Victor Bangert) The existence of two closed geodesics on every Finsler 2-sphere. Math. Ann. 346 (2010) 335-366.
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