Uniform Harbourne–Huneke bounds via flat extensions
Uniform Harbourne–Huneke bounds via flat extensions
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统一 Harbourne–Huneke 通过平坦延伸部分进行弹跳
DOI:
10.1016/j.jalgebra.2018.08.024
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发表时间:
2018
影响因子:
0.9
通讯作者:
Walker, Robert M.
中科院分区:
文献类型:
--
作者:
Walker, Robert M.
Over an arbitrary field F, Harbourne [3] conjectured that the symbolic power I (N (r− 1)+ 1)⊆ I r for all r> 0 and all homogeneous ideals I in S= F [P N]= F [x 0,…, x N]. The conjecture has been disproven for select values of N≥ 2: first by Dumnicki, Szemberg, and Tutaj-Gasińska in characteristic zero [7], and then by Harbourne and Seceleanu in positive characteristic [13]. However, the ideal containments above do hold when, eg, I is a monomial ideal in S [3, Ex. 8.4. 5]. As a sequel to [21], we present criteria for containments of type I (N (r− 1)+ 1)⊆ I r for all r> 0 and certain classes of ideals I in a prodigious class of normal rings. Of particular interest is a result for monomial primes in tensor products of affine semigroup rings. Indeed, we explain how to give effective multipliers N in several cases including: the D-th Veronese subring of any polynomial ring F [x 1,…, x n](n≥ 1); and the extension ring F [x 1,…, x n, z]/(z D− x 1⋯ x n) of F [x 1,…, x n].
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影响因子:
0.8
作者:
B. Harbourne;A. Seceleanu
通讯作者:
A. Seceleanu
影响因子:
0.9
作者:
M. Dumnicki;T. Szemberg;H. Tutaj
通讯作者:
H. Tutaj
DOI:
10.1090/conm/496/09718
发表时间:
2008-10
期刊:
arXiv: Algebraic Geometry
影响因子:
--
作者:
Thomas Bauer;S. Rocco;B. Harbourne;Michał Kapustka;A. L. Knutsen;W. Syzdek;T. Szemberg
通讯作者:
Thomas Bauer;S. Rocco;B. Harbourne;Michał Kapustka;A. L. Knutsen;W. Syzdek;T. Szemberg
DOI:
10.1093/imrn/rnx213
发表时间:
2017
期刊:
arXiv: Commutative Algebra
影响因子:
--
作者:
Eloísa Grifo;C. Huneke
通讯作者:
C. Huneke
DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
M. Hochster;C. Huneke
通讯作者:
C. Huneke