人物經歷
研究方向
主講課程
學術貢獻
在拓撲
不動點理論問題中有一系列的研究工作, 有多篇
學術論文發表於國內外重要學術刊物上,多次應邀參加該方面的國際學術會議,研究成果受國內外同行的關注。現主持這一方向的
國家自然科學基金、
北京市自然科學基金理論研究項目。任Zentralblatt fuer Mathematik 數學評論員。同時,在
數學基礎理論的套用中亦有研究與開發工作。
Homotopical theory of periodic points of periodic homeomorphisms on closed surfaces Topology
Appl. 156 (2009), no. 15, 2527-2536
Erratum: Multiplicative rule of Schubert classes. Invent.
Math. 177 (2009), no. 3, 683--684
A new lower bound for the number of roots of maps between graphs Topol. Methods Nonlinear Anal. 33 (2009), no. 1, 17-29
Minimal sets of periods for maps on the Klein bottle J. Korean
Math. Soc. 45(2008), No.3, 883 --902
Certain generalizations of $G$-sequences and their exactness Bull.
Korean Math. Soc. 45(2008), No.1, 119-131
Nielsen type numbers and homotopy minimal periods for maps on 3-solvmanifolds. Algebr. Geom. Topol. 8 (2008), no. 1, 563-580
三維冪零
流形上映射的 Nielsen 型數和同倫最小周期集
中國科學, 38卷, 1期(2008), 21-30
Periodic orbits with least period three on the circle Fixed Point Theory
Appl. 2008, Art. ID 194875, 8 pp
On fixed points of stratified maps. Journal of Fixed Point Theory and Applications, 2(2007), No. 2, 225-240
A unified formula for Steenrod operations in flag manifolds Compositio
Math. 143 (2007) 257-270
Homotopy minimal periods for expanding maps on infra-nilmanifolds Journal of the mathematical society of Japan,59 (2007), no.1, 179-184
Algorithm For Multiplying Schubert Classes, International Journal of Algebra and Computation, Vol. 16, No. 6 (2006) 1197-1210
Periodic orbits of least period three on the circle Proceeding of the 4th Sogang geometry and complex analysis symposium, Advanced basic research laboratory, department of mathematics, Sogang University, 2006, 53-61
Reducing the number of fixed points of some homeomorphisms on nonprime 3-manifolds Fixed Point Theory
Appl. 2006, Special Issue, Art. ID 25897, 19 pp
Computing cohomology rings of Exceptional Grassmannians Proceeding of the seventh Asian symposium on the computer mathematics (ASCM 2005), Korea Institute for Advanced Study, 2005, 7-9
Relative Nielsen theory Handbook of topological fixed point theory, 659--684, Springer, Dordrecht, 2005.
On the number of roots of maps between graphs Proceeding of the international conference on homotopy theory and related topics, Korea university, 2005, 73-76
The existence and stability of travelling waves with transition layers for some singular cross-diffusion systems Physica D 200(2005), No.3-4, 325-358
The stability of travelling waves with transition layers for some cross-diffusion systems Nonlinear partial differential equations and their applications, GAKUTO Internat.
Ser.
Math.
Sci. Appl., 20, Gakkotosho, Tokyo, 2004, 391-406
A simplified index for roots Boletin de la Sociedad Matematica Mexicana 3A. Serie Vol. 10 No. 3(2004), 529-533
The Cartan matrix and enumerative calculus J. Sym. Comp. 38(2004) 1119-1144
Periodic points of relative maps Proceeding of the international conference on homotopy theory and related topics, Institute of science and technology,
Korea university, 2004, 19-27
A minimum theorem for the relative root Nielsen number Commun. Korean
Math. Soc. 19 (2004), no. 1, 159-167
On the Nielsen Numbers of slide homeomorphisms on $3$-manifolds Topology and its Applications, Volume 136, Issues 1-3 , 28
January 2004, 169-188
Estimation of the number of fixed points on the complement Topology and its Applications 37 (1990), 257 -- 265
A relative Nielsen number for the complement Topological Fixed Point Theory and Applications", Lecture Notes in
Math. 1411,
Springer-Verlag (Berlin) 1989, 189-199