Department Seminars and Colloquium
Hae-Sang Sun (UNIST)Number Theory Seminar
Non-vanishing mod p of Dirichlet L-values with large kernels.
Taehee Kim (Konkuk University)Topology Seminar
The 4-genus of knots
Hae-Sang Sun (KAIST)Colloquium
Lochs’ variable and Arithmetic of L-values
Naing Zaw Lu (KAIST)Etc.
Introduction to Homotopical Algebra through Model Categories II
Danny Calegari (University of Chicago)Topology Seminar
Universal Circles (Minicourse I)
Graduate Seminars
SAARC Seminars
PDE Seminars
IBS-KAIST Seminars
Conferences and Workshops
Student News
Bookmarks
Research Highlights
Bulletin Boards
Problem of the week
Consider a convex \((n+2)\)-gon. Let \(a_n\) denote the number of ways to add non-crossing chords to this polygon, including the case where no chords are added (i.e., \(a_0=a_1=0\) and \(a_2=3\)).
Find a recurrence relation for the sequence \(a_n\) and determine its generating function.
KAIST Compass Biannual Research Webzine
Consider a convex \((n+2)\)-gon. Let \(a_n\) denote the number of ways to add non-crossing chords to this polygon, including the case where no chords are added (i.e., \(a_0=a_1=0\) and \(a_2=3\)).
Find a recurrence relation for the sequence \(a_n\) and determine its generating function.