Zobrazeno 1 - 10
of 532
pro vyhledávání: '"Ngo, Viet"'
This paper studies the problem of which sequences of non-negative integers arise as the functions $\operatorname{reg} I^{n-1}/I^n$, $\operatorname{reg} R/I^n$, $\operatorname{reg} I^n$ for an ideal $I$ generated by forms of degree $d$ in a standard g
Externí odkaz:
http://arxiv.org/abs/2309.11631
By a classical result of Brodmann, the function $\operatorname{depth} R/I^t$ is asymptotically a constant, i.e. there is a number $s$ such that $\operatorname{depth} R/I^t = \operatorname{depth} R/I^s$ for $t > s$. One calls the smallest number $s$ w
Externí odkaz:
http://arxiv.org/abs/2308.15021
Let $I$ be the edge ideal of a connected non-bipartite graph and $R$ the base polynomial ring. Then $\operatorname{depth} R/I \ge 1$ and $\operatorname{depth} R/I^t = 0$ for $t \gg 1$. We give combinatorial conditions for $\operatorname{depth} R/I^t
Externí odkaz:
http://arxiv.org/abs/2212.14792
Autor:
Ha, Huy Tai, Trung, Ngo Viet
We survey recent studies and results on the following problem: which numerical functions can be the depth function of powers and symbolic powers of homogeneous ideals.
Comment: 13 pages
Comment: 13 pages
Externí odkaz:
http://arxiv.org/abs/2106.08203
Autor:
Lam, Tran Thi Gia, Trung, Ngo Viet
Publikováno v:
Journal of Algebra 590 (2022), 313-337
Projective monomial curves correspond to rings generated by monomials of the same degree in two variables. Such rings always have finite Macaulayfication. We show how to characterize the Buchsbaumness and the Castelnuovo-Mumford regularity of these r
Externí odkaz:
http://arxiv.org/abs/2105.09190
Autor:
Ngo Van Hieu, Le Ba Vinh, Nguyen Viet Phong, Pham Van Cong, Nguyen Tien Dat, Nguyen Van Dan, Ngo Viet Duc, Hoang Minh Tao, Le Thi Tam, Le Tuan Anh, Nguyen Cao Cuong, Bui Huu Tai, Seo Young Yang, Hoang Le Tuan Anh
Publikováno v:
Plants, Vol 13, Iss 15, p 2100 (2024)
Gnetum formosum Markgr., a member of the Gnetaceae family, is distributed in Vietnam. This plant remains a botanical enigma with an unexplored diversity of chemical constituents and pharmacological effects. In this study, two new steroidal saponins,
Externí odkaz:
https://doaj.org/article/2f96e015a22c474dbf1dcf62c3c4d26f
Autor:
Quy, Pham Hung, Trung, Ngo Viet
Let $(R,\mathfrak m)$ be a local ring and $I, J$ two arbitrary ideals of $R$. Let $\operatorname{gr}_J(R/I)$ denote the associated ring of $R/I$ with respect to $J$, which corresponds to the normal cone in geometry. The main result of this paper show
Externí odkaz:
http://arxiv.org/abs/2012.14719
Publikováno v:
Math. Ann. 378 (2020), 951-969
We prove that two arbitrary ideals $I \subset J$ in an equidimensional and universally catenary Noetherian local ring have the same integral closure if and only if they have the same multiplicity sequence. We also obtain a Principle of Specialization
Externí odkaz:
http://arxiv.org/abs/2008.00384
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