Tin tức nổi bật
Hội thảo sắp diễn ra
18/09/24, Hội nghị, hội thảo:
THE 3RD VIETNAM - KOREA JOINT WORKSHOP ON SELECTED TOPICS IN MATHEMATICS
18/12/24, Hội nghị, hội thảo:
International conference on commutative algebra to the memory of Jürgen Herzog
Xuất bản mới
Cấn Văn Hảo,
Naoki Kubota,
Shuta Nakajima,
Lipschitz-Type Estimate for the Frog Model with Bernoulli Initial Configuration,
Mathematical Physics, Analysis and Geometry, Volume 28, article number 1, (2025)
(SCI-E, Scopus)
.
Đoàn Thái Sơn,
Phan Thị Hương,
Peter E. Kloeden,
Theta-scheme for solving Caputo fractional differential equations,
Electronic Journal of Differential Equations, Vol. 2025 (2025), No. 05, pp. 1-13
(SCI-E, Scopus)
.
Đinh Sĩ Tiệp,
Guo Feng,
Nguyễn Hồng Đức,
Phạm Tiến Sơn,
Computation of the Łojasiewicz exponents of real bivariate analytic functions,
Manuscripta Mathematica . Volume 176, 1 (2025)
(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.