Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Truong, Hoang Le"'
Autor:
Schreyer, Frank-Olaf, Truong, Hoang Le
In this note we give a computationally easy to use method to compute a maximal extension of certain varieties. As a application we prove that a general paracanonical curve C genus 6 as a codimension three subvarieties of P^4 extend to precisely 26 fa
Externí odkaz:
http://arxiv.org/abs/2402.09351
Autor:
Hang, Nguyen Thi Anh, Truong, Hoang Le
In this paper, we will show that the affine cones over any smooth Fano-Mukai fourfold of genus $7$ are flexible.
Comment: 9 pages, comments are welcome!
Comment: 9 pages, comments are welcome!
Externí odkaz:
http://arxiv.org/abs/2304.02293
This paper shows that if $R$ is a homomorphic image of a Cohen-Macaulay local ring, then $R$-module $M$ is sequentially generalized Cohen-Macaulay if and only if the difference between Hilbert coefficients and arithmetic degrees for all distinguished
Externí odkaz:
http://arxiv.org/abs/2208.09112
Autor:
Hoff, Michael, Truong, Hoang Le
We show that the affine cones over a general Fano-Mukai fourfold of genus $g=7$, $8$ and $9$ are flexible. Equivalently, there is an infinitely transitive action of the special automorphism group on such affine cones. In particular, any Mukai fourfol
Externí odkaz:
http://arxiv.org/abs/2208.09109
Autor:
Truong, Hoang Le, Yen, Hoang Ngoc
In this paper, we give necessary and sufficient conditions for the existence of Ulrich bundles on cubic fourfold $X$ of given rank $r$. As consequences, we show that for every integer $r\ge 2$ there exists a family of indecomposable rank $r$ Ulrich b
Externí odkaz:
http://arxiv.org/abs/2206.05285
Autor:
Truong, Hoang Le
Let $X$ be a closed subscheme of codimension $e$ in a projective space. One says that $X$ satisfies property ${\bf N}_{d,p}$, if the $i$-th syzygies of the homogeneous coordinate ring are generated by elements of degree $
Externí odkaz:
http://arxiv.org/abs/2206.04952
We explore the behavior of the sectional genera of certain primary ideals in Noetherian local rings. In this paper, we provide characterizations of a Cohen-Macaulay local ring in terms of the sectional genera, the Cohen-Macaulay type, and the second
Externí odkaz:
http://arxiv.org/abs/2206.04859
Autor:
Truong, Hoang Le, Yen, Hoang Ngoc
This paper purposes to characterize Noetherian local rings $(R, \mathfrak{m})$ such that the Chern numbers of certain $\mathfrak{m}$-primary ideals in $R$ bounded above or range among only finitely many values. Consequently, we characterize the Goren
Externí odkaz:
http://arxiv.org/abs/2206.04856
In this paper, we introduce the concept of canonical stretched rings, sparse stretched rings and maximum sparse ideals. Then we give characterizations of canonical stretched rings and sparse stretched rings; and a characterization of Gorenstein rings
Externí odkaz:
http://arxiv.org/abs/2108.11087
Publikováno v:
Ark. Mat. 58 (1) (2020) 197 - 212
In this paper, we investigate the relationship between the index of reducibility and Chern coefficients for primary ideals. As an application, we give characterizations of a Cohen-Macaulay ring in terms of its type, irreducible multiplicity, and Cher
Externí odkaz:
http://arxiv.org/abs/2108.11079