1984年7月 ~ 1992年10月,吉林省延边大学数学系,教师;
1992年10月 ~ 1996年3月, 日本国爱知教育大学,读硕士课程;
1996年4月 ~ 1999年3月, 日本国神户大学,读博士课程;
1997年4月 ~ 1999年7月, 日本国神户大学,非常勤讲师;
1999年8月 ~ 今, 你好啊,教师。
任职情况:
1990年3月~ 1992年10月,延边大学 数学系团总支书记;
2000年3月~ 2002年1月,你好啊 组合数学中心副主任;
2002年3月~ 2016年5月,你好啊“核心数学与组合数学教育部重点实验室”
副主任;
2007年6月~ 2010年1月,数学科学学院 金融信息技术系主任;
2010年1月~ 今,数学科学学院 应用数学系主任。
教学情况:
从1984年7月至1992年10月,在延边大学工作期间,本人承担了 “高等数学”、“高等代数”、“抽象代数”等教学课程。并在1989年代表数学系年轻教师参加的首届全校青年教师教学比赛中获得第三名。
1999年8月回国到你好啊工作之后,给本科生和研究生授课的课程有
本科生课程:“高等数学”(经济类和化学类)、“离散数学”(软件学院)、
“高等代数”(数学学院基础课)、“运筹学”(专业必修课)、
“图论”(专业必修课)、“组合论”(专业选修课)。
研究生课程:除了讲授“组合计数”和“图论及其应用”专业必修课外,
讲授“图的计数”、“代数图论”、“应用图论”等专业选修课,
并已指导培养了20多名研究生,现正在指导5名研究生。
科研情况:
回国到你好啊后一直从事组合数学和图论方向的研究,已承担或参加过科技部“973”项目(子课题)、国家自然科学基金、教育部等科研项目,
是美国 Math. Review 评论员、中国数学会和工业应用数学会会员、天津市工业与应用数学会理事,国家科技奖励评审和教育部评审以及天津市科学技术奖评审、科技计划验收和科技成果评价专家。
已发表或接受的论文有30多篇。
论著目录:
1、On the Tree with maximum General Randic Index,Ars Combinatoria,113(2014),65-79.
2、The diameter and chromatic number of almost self-complementary graphs,Ars Combinatoria,
110(2013),323-330.
3、On the isoperimetric number of a k-degree Cayley graph, Applied Mathematics Letters,
22(2009), 1451-1457.
4、The L(2,1)-Labelling of ZN, JP Journal of Algebra,Number Theory and Applications,14(2009),
No.1, 13-26.
5、The Max Tree for the General Randic Index, Mathematical Chemistry Monographs 6(2008),
145-159.
6、Beck’s graphs associated with Zn and their characteristic polynomials,International Journal of Applied Mathematics and Statistics, 11(2007), 81-93.
7、A Zero-divisor Graph of the Ring of Integers Modulo an Integer and the Characteristic Polynomial of its Adjacent Matrix,The Bulletin of Aichi University of Education, 55(2006), 1-4.
8、Maximum Tree and Maximum Value for the Randic Index R-1 of Trees of Order n<102,MATCH Commun. Math. Comput. Chem. , 55 (2006), 119-136.
9、Enumeration for spanning forests of complete bipartite graphs, Ars Combinatoria, 70(2004), 135-138.
10、The enumeration of labelled spanning trees of Km,n, Australasian Journal of Combinatorics,Vol.28(2003), 73-79.
11、On the chromatic numbers of graphs associated with finite rings. proceedings of the Sixth
Symposium on Algebra, Languages and Computation , Kanagawa Inst. Technol., Kanagawa, 2003, 11- 17.
12、Enumeration of connected graphs with cut vertices, Journal of Statistical Planning and Inference, 106(2002), 409-418.
13、The Chromatic numbers of Simple Graphs Associated with a Class of Finite Rings, JP Journal of Algebra, number Theory and Applications,2(3)(2002), 301-315.
14、The chromatic numbers of simple graphs associated with finite rings,Proceedings of the 4th Symposium on Algebra, Languages and Computation Osaka Prefect. Univ., Sakai, 2001,
26 — 30 .
15、Enumeration of labelled Euler graphs with cut vertices, Journal of Mathematics(PRC), Vol.20(2000), No.4, 473-478.
16、Enumeration of abeled connected graphs and Euler graphs with only one cut vertex, Yokohama Mathematical Journal, 45(1998), 125-134.
17、Enumeration of labelled 2-connected Euler graphs, Journal of Combinatorics Information & System Sciences, 23(1998), 407-414.
18、On the Chromatic Numbers of Graphs and Adjacent Matrixs, Ipushiron, 38(1996), 139-144.
19、Study of the remainder in the Power-sum, Ipushiron, 37(1995), 81-87.
20、On the expansion into continued fraction of irrational number, Ipushiron, 37(1995), 89-92.
21、Curriculum Development of Farey Series toward Mathematics Education,Aichi University of Education Subject education center, 19(1995), 141-146.
22、Considerations of Ideals in Certain Rings with Zero Divisor, Memoirs of the Tohoku Institute of
Technologk, 15(1995), 1-8.
23、On the Formulas of Power-sum, Reports on the Results of the Special Research 1993, Research for Materials to Teach Mathematics toward the Age of High Technology and Science,
Aichi University of Education, March 1994, 140-156.
24、Curriculum Development of Determinant toward Mathematics Education, Development (Society for Developmental Research of High School Mathematics), 3(1994), 23-31.
25、On Certain Matrices and Their Laws, Reports on the Results of the Special Research 1993, Research for Materials to Teach Mathematics toward the Age of High Technology and Science, Aichi University of Education, March 1994, 157-164.
26、On the Ring with Zero Divisor and Graph Theory, Ipushiron, 36(1994), 93-97.
27、The Formulas of Power-sum as Open Teaching Materials, Development, 2(1993), 7-22.
28、On the Unit Group of a Ring, Journal of Yanbian University, Vol.19, 4(1993), 7-11.
29、A Type of Topological Space, Journal of Yanbian University, Vol.19, 2(1993), 1-4.
30、Remarks on Automor-phisms which have Eigen, Journal of Yanbian University, Vol.17, 2(1991), 19-23.