학과 세미나 및 콜로퀴엄
서동엽 (KAIST)Topology, Geometry, and Data Analysis
Introduction to Graph Neural Networks (Part 1)
조재현 (UNIST)정수론
Distribution of the traces of Frobenius of elliptic curves
조재현 (UNIST 수리과학과)콜로퀴엄
Arithmetic statistics (AS) and L-functions
서동엽 (KAIST)Topology, Geometry, and Data Analysis
Introduction to Graph Neural Networks (Part 2)
Frank-Olaf Schreyer (Saarland University)대수기하학
An experimental and computational approach to algebraic geometry (Lecture 5)
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
Count the number of distinct matrices \( A \), where two matrices are considered identical if one can be obtained from the other by rearranging rows and columns, that have the following properties:
- \( A \) is a \( 7 \times 7 \) matrix and every entry of \( A \) is \( 0 \) or \( 1 \).
- Each row of \( A\) contains exactly 3 non-zero entries.
- For any two distinct rows \( i\) and \( j\) of \( A\), there exists exactly one column \( k \) such that \( A_{ik} \neq 0 \) and \( A_{jk} \neq 0 \).