Colloquium

Speaker: Prof. Shimei Ma (Northeast University at Qinhuangdao)
Title: Some recent progress in the connection between trigonometric functions and combinatorics
Time: 2015-01-29 (Thu.)  16:00 - 17:00
Place: Auditorium, 6 Floor, Institute of Mathematics (NTU Campus)
Abstract: In this talk, we give a survey of the recent progress on the connection between trigonometric functions and combinatorics. We shall illustrate how the differential equations satisfied by tangent and secant functions could be used to study combinatorics. Many permutation statistics on Coxeter group, such as descents, peaks, alternating runs, the longest alternating subsequeces and alternating descents are all closely related to tangent and secant functions.
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