Results 11 to 20 of about 136,089 (106)

Castelnuovo–Mumford Regularity and Powers [PDF]

open access: yes, 2021
The paper is dedicated to David Eisenbud on the occasion of his seventy-fifth ...
Bruns W., Conca A., Varbaro M.
openaire   +3 more sources

Castelnuovo–Mumford regularity by approximation [PDF]

open access: yesAdvances in Mathematics, 2004
The Castelnuovo-Mumford regularity of a module gives a rough measure of its complexity. We bound the regularity of a module given a system of approximating modules whose regularities are known. Such approximations can arise naturally for modules constructed by inductive combinatorial means.
Derksen, Harm, Sidman, Jessica
openaire   +3 more sources

Bounds for the Castelnuovo-Mumford Regularity [PDF]

open access: yesJournal of Commutative Algebra, 2009
We extend the “linearly exponential” bound for the Castelnuovo-Mumford regularity of a graded ideal in a polynomial ring K[x1, . . . , xr] over a field (established by Galligo and Giusti in characteristic 0 and recently, by Caviglia-Sbarra for abitrary K) to graded submodules of a graded module over a homogeneous Cohen-Macaulay ring R = ⊕n≥0Rn with ...
Brodmann, M., Götsch, T.
openaire   +4 more sources

Castelnuovo–Mumford regularity and Ratliff–Rush closure [PDF]

open access: yesJournal of Algebra, 2018
16 pages; to appear in Journal of ...
Rossi, ME, Trung, DT, Trung, NV
openaire   +5 more sources

Castelnuovo–Mumford Regularity

open access: yes, 2022
For standard graded algebras over fields, Castelnuovo-Mumford regularity has become an indispensable invariant. Chapter 8 develops this notion from scratch, but in a more general version for standard graded algebras over Noetherian base rings. As in the classical case, regularity can be computed from local cohomology, minimal free resolutions and ...
Winfried Bruns   +3 more
openaire   +2 more sources

Castelnuovo–Mumford regularity and Segre–Veronese transform [PDF]

open access: yesJournal of Algebra and Its Applications, 2016
In this paper we give a nice formula for the Castelnuovo–Mumford regularity of the Segre product of modules, under some suitable hypotheses. This extends recent results of David A. Cox, and Evgeny Materov (2009).
Morales, Marcel, Nguyen Thi, Dung
openaire   +4 more sources

A Castelnuovo–Mumford regularity bound for scrolls

open access: yesJournal of Algebra, 2017
10 pages.
Wenbo Niu, Jinhyung Park
openaire   +3 more sources

Liaison and Castelnuovo-Mumford regularity [PDF]

open access: yesAmerican Journal of Mathematics, 2002
In this article we establish bounds for the Castelnuovo-Mumford regularity of projective schemes in terms of the degrees of their defining equations. The main new ingredient in our proofs is to show that generic residual intersections of complete intersection rational singularities again have rational singularities.
Chardin, Marc, Ulrich, Bernd
openaire   +5 more sources

Castelnuovo–Mumford regularity: examples of curves and surfaces

open access: yesJournal of Algebra, 2003
The behaviour of Castelnuovo-Mumford regularity under ``geometric'' transformations is not well understood. In this paper we are concerned with examples which will shed some light on certain questions concerning this behaviour.
Chardin, Marc, d'Cruz, Clare
core   +6 more sources

Bigraded Castelnuovo-Mumford regularity and Gröbner bases

open access: yesJournal of Symbolic Computation
Revised version: we restrict to the bigraded case.
Bender, Matías   +3 more
openaire   +3 more sources

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