Tin tức nổi bật
Hội thảo sắp diễn ra
05/03/24, Hội nghị, hội thảo:
HỘI NGHỊ ĐẠI SỐ-LÝ THUYẾT SỐ-HÌNH HỌC-TÔ PÔ 2024
28/07/24, Hội nghị, hội thảo:
School and Workshop “Selected topics in Arithmetic Algebraic Geometry”
18/09/24, Hội nghị, hội thảo:
THE 3RD VIETNAM - KOREA JOINT WORKSHOP ON SELECTED TOPICS IN MATHEMATICS
Xuất bản mới
Trần Hùng Cường,
Yongdo Lim,
Nguyễn Đông Yên,
On a solution method in indefinite quadratic programming under linear constraints,
Optimization, Volume 73, 2024 - Issue 4, Pages 1087-1112
(SCI-E, Scopus)
.
Yongdo Lim,
Hoàng Ngọc Tuấn,
Nguyễn Đông Yên,
Local Error Bounds for Affine Variational Inequalities on Hilbert Spaces,,
Numerical Functional Analysis and Optimization, Volume 45, 2024, Issue 1, Pages 1-15
(SCI-E, Scopus)
.
Đỗ Thái Dương,
Nguyễn Văn Thiện,
On the finite energy classes of quaternionic plurisubharmonic functions,
Journal of Mathematical Analysis and Applications, Volume 541, Issue 1, January 2025, 128736
(SCI-E, Scopus)
.
Cohen--Macaulayness of a class of graphs versus the class of their complements
Người báo cáo: Đỗ Trọng Hoàng
Time: 9:30 - 11:00, March 01, 2023.
Venue: Room 612, A6, Institute of Mathematics, VAST
Abstract: Let $ngeq2$ be an integer. The graph $G(n)$ is obtained by letting all the elements of ${0,ldots,n-1}$ to be the vertices and defining distinct vertices $x$ and $y$ to be adjacent if and only if $gcd(x+y,n)=1$. In this talk, well-coveredness, Cohen--Macaulayness, vertex-decomposability and Gorensteinness of these graphs and their complements are characterized. These characterizations provide large classes of Cohen--Macaulay and non Cohen--Macaulay graphs. This is a joint work with T. Ashitha, T. Asir, and M. R. Pournaki.