Results 21 to 30 of about 877,501 (328)

Complete intersections in binomial and lattice ideals [PDF]

open access: yes, 2013
For the family of graded lattice ideals of dimension 1, we establish a complete intersection criterion in algebraic and geometric terms. In positive characteristic, it is shown that all ideals of this family are binomial set theoretic complete ...
H. Villarreal, Hiram H. López, Rafael
core   +1 more source

The primitive cohomology lattice of a complete intersection [PDF]

open access: yes, 2009
We describe the primitive cohomology lattice of a smooth even-dimensional complete intersection in projective ...
Beauville, Arnaud
core   +3 more sources

Calabi-Yau generalized complete intersections and aspects of cohomology of sheaves

open access: yes, 2020
We consider generalized complete intersection manifolds in the product space of projective spaces, and work out useful aspects pertaining to the cohomology of sheaves over them.
Jia, Qiuye, Lin, Hai
core   +1 more source

Choice of the control variables of an isolated intersection by graph colouring [PDF]

open access: yesYugoslav Journal of Operations Research, 2015
This paper deals with the problem of grouping the traffic streams into some groups - signal groups on a signalized intersection. The fact that more traffic streams, which are not in a conflict, can be controlled by one sequence of traffic lights
Batanović Vladan   +2 more
doaj   +1 more source

Set-theoretic complete intersections [PDF]

open access: yesProceedings of the American Mathematical Society, 1985
In this article we establish that: (1) Every monomial curve in P k n {\mathbf {P}}_k^n is a set-theoretic complete intersection, where k k is a field of characteristic p p (and thus generalize a result of R. Hartshorne [3]). (2) Let
openaire   +1 more source

The $4n^2$-inequality for complete intersection singularities [PDF]

open access: yes, 2016
The famous $4n^2$-inequality is extended to generic complete intersection singularities: it is shown that the multiplicity of the self-intersection of a mobile linear system with a maximal singularity is higher than $4n^2\mu$, where $\mu$ is the ...
Pukhlikov, Aleksandr V.
core   +2 more sources

Complete intersections in P^2 through separating sequences

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2007
In this paper we characterize the finite sets of points in P2, arising as a complete intersection of two curves, by means of their realizable sequences. Actually, we show that a reduced 0-dimensional scheme in P2 is a complete intersection of type (a, b)
Massaza, Carla, Beccari, Giannina
doaj   +1 more source

Complete intersection dimension [PDF]

open access: yesPublications mathématiques de l'IHÉS, 1997
Let \(A\) be a Noetherian local ring and \(M\) a finitely generated \(A\)-module. In the case where \(\text{pd}_A M < \infty\), the structure of \(M\) is very rigid but we know a little bit if \(\text{pd}_A M = \infty\). In the present paper, the authors define a new invariant of \(M\), called the complete intersection dimension \(\text{CI-dim}_A M ...
Avramov, Luchezar L.   +2 more
openaire   +1 more source

A Classiffier for Unimodular Isolated Complete Intersection Space Curve Singularities

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
C.T.C. Wall classified the unimodular complete intersection singularities. He indicated in the list only the μ-constant strata and not the complete classification in each case.
Afzal Deeba, Pfister Gerhard
doaj   +1 more source

Complete intersection lattice ideals

open access: yesJournal of Algebra, 2005
In this paper we completely characterize lattice ideals that are complete intersections or equivalently complete intersections finitely generated semigroups of $\bz^n\oplus T$ with no invertible elements, where $T$ is a finite abelian group. We also characterize the lattice ideals that are set-theoretic complete intersections on binomials.
Morales, M., Thoma, A.
openaire   +3 more sources

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