학과 세미나 및 콜로퀴엄
강성경 (University of Oxford)위상수학 세미나
Bordered Floer homology and the invariant splitting principle
Fabrizio Zanello (Michigan Technical University)대수기하학
On the parity of the partition function: Recent results and conjectures
한강진 (DGIST)대수기하학
On ideals of some Gaussian Graphical Models in Statistics
Jerry Bona (University of Illinois Chicago)콜로퀴엄
Theory and Application of Water Wave Models
김재홍 (KAIST)기타
Introduction to complex algebraic geometry and Hodge theory #3
대학원생 세미나
SAARC 세미나
편미분방정식 통합연구실 세미나
IBS-KAIST 세미나
학술회의 및 워크샵
학생 뉴스
북마크
Research Highlights
게시판
동문 뉴스
Problem of the week
Let \(P(z) = z^3 + c_1 z^2 + c_2 z+ c_3\) be a complex polynomial in \(\mathbb{C}\). Its complex derivative is given by \(P’(z) = 3z^{2} +2c_1z+c_{2}.\) Assume that there exist two points a, b in the open unit disc of complex plane such that P(a) = P(b) =0. Show that there is a point w belonging to the line segment joining a and b such that \({\rm Re} (P’(w)) = 0\).