Results 51 to 60 of about 2,805,734 (255)

Secant varieties of toric varieties arising from simplicial complexes [PDF]

open access: yesLinear Algebra and its Applications, 2019
Motivated by the study of the secant variety of the Segre-Veronese variety we propose a general framework to analyze properties of the secant varieties of toric embeddings of affine spaces defined by simplicial complexes.
M. A. Khadam   +2 more
semanticscholar   +1 more source

CHOW GROUPS, CHOW COHOMOLOGY, AND LINEAR VARIETIES

open access: yesForum of Mathematics, Sigma, 2014
We compute the Chow groups and the Fulton–MacPherson operational Chow cohomology ring for a class of singular rational varieties including toric varieties.
BURT TOTARO
doaj   +1 more source

Homogeneous Toric Varieties

open access: yesJournal of Lie Theory, 2010
A description of transitive actions of a semisimple algebraic group G on toric varieties is obtained. Every toric variety admitting such an action lies between a product of punctured affine spaces and a product of projective spaces. The result is based on the Cox realization of a toric variety as a quotient space of an open subset of a vector space V ...
Arzhantsev, Ivan V.   +1 more
openaire   +3 more sources

Monodromy of monomially admissible Fukaya-Seidel categories mirror to toric varieties [PDF]

open access: yesAdvances in Mathematics, 2018
Mirror symmetry for a toric variety involves Laurent polynomials whose symplectic topology is related to the algebraic geometry of the toric variety. We show that there is a monodromy action on the monomially admissible Fukaya-Seidel categories of these ...
Andrew D. Hanlon
semanticscholar   +1 more source

Computational Tools for Cohomology of Toric Varieties

open access: yesAdvances in High Energy Physics, 2011
Novel nonstandard techniques for the computation of cohomology classes on toric varieties are summarized. After an introduction of the basic definitions and properties of toric geometry, we discuss a specific computational algorithm for the determination
Ralph Blumenhagen   +2 more
doaj   +1 more source

Moduli spaces of Calabi–Yau complete intersections

open access: yesNuclear Physics B, 2015
In this short note, based on the work [7] in 1994, we describe compactifications of moduli spaces of Calabi–Yau complete intersections in Gorenstein toric Fano varieties.
Shinobu Hosono
doaj   +1 more source

Immaculate line bundles on toric varieties [PDF]

open access: yesPure and Applied Mathematics Quarterly, 2018
We call a sheaf on an algebraic variety immaculate if it lacks any cohomology including the zero-th one, that is, if the derived version of the global section functor vanishes.
K. Altmann   +3 more
semanticscholar   +1 more source

The Regularity of a Toric Variety

open access: yesJournal of Algebra, 2001
We give a method for computing the degrees of the minimal syzygies of a toric variety by means of combinatorial techniques. Indeed, we complete the explicit description of the minimal free resolution of the associated semigroup algebra, using the simplicial representation of Koszul homology which appeared in A. Campillo and C.
Briales-Morales, E   +2 more
openaire   +4 more sources

Non-commutative resolutions of toric varieties [PDF]

open access: yesAdvances in Mathematics, 2018
Let $R$ be the coordinate ring of an affine toric variety. We show that the endomorphism ring $End_R(\mathbb A),$ where $\mathbb A$ is the (finite) direct sum of all (isomorphism classes of) conic $R$-modules, has finite global dimension. Furthermore, we
Eleonore Faber   +2 more
semanticscholar   +1 more source

Fibred toric varieties in toric hyperkähler varieties

open access: yes, 2010
21 pages, 5 figures, 3rd version, the whole paper is ...
van Coevering, Craig, Zhang, Wei
openaire   +2 more sources

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