Results 1 to 10 of about 356 (36)

On genus one mirror symmetry in higher dimensions and the BCOV conjectures

open access: yesForum of Mathematics, Pi, 2022
The mathematical physicists Bershadsky–Cecotti–Ooguri–Vafa (BCOV) proposed, in a seminal article from 1994, a conjecture extending genus zero mirror symmetry to higher genera.
Dennis Eriksson   +2 more
doaj   +1 more source

The most efficient indifferentiable hashing to elliptic curves of j-invariant 1728

open access: yesJournal of Mathematical Cryptology, 2022
This article makes an important contribution to solving the long-standing problem of whether all elliptic curves can be equipped with a hash function (indifferentiable from a random oracle) whose running time amounts to one exponentiation in the basic ...
Koshelev Dmitrii
doaj   +1 more source

Smoothing toroidal crossing spaces

open access: yesForum of Mathematics, Pi, 2021
We prove the existence of a smoothing for a toroidal crossing space under mild assumptions. By linking log structures with infinitesimal deformations, the result receives a very compact form for normal crossing spaces.
Simon Felten, Matej Filip, Helge Ruddat
doaj   +1 more source

Polynomial Bridgeland stability conditions and the large volume limit [PDF]

open access: yes, 2007
We introduce the notion of a polynomial stability condition, generalizing Bridgeland stability conditions on triangulated categories. We construct and study a family of polynomial stability conditions for any normal projective variety.
Arend Bayer
semanticscholar   +1 more source

Derived category automorphisms from mirror symmetry [PDF]

open access: yes, 2001
Inspired by the homological mirror symmetry conjecture of Kontsevich [30], we construct new classes of automorphisms of the bounded derived category of coherent sheaves on a smooth quasi– projective variety. MSC (2000): 18E30; 14J32.
R. P. Horja
semanticscholar   +1 more source

Standard-model bundles [PDF]

open access: yes, 2000
We describe a family of genus one fibered Calabi-Yau threefolds with fundamental group Z/2. On each Calabi-Yau Z in the family we exhibit a positive dimensional family of Mumford stable bundles whose symmetry group is the Standard Model group SU(3) × SU ...
R. Donagi   +3 more
semanticscholar   +1 more source

Conic bundles that are not birational to numerical Calabi--Yau pairs [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2017
Let $X$ be a general conic bundle over the projective plane with branch curve of degree at least 19. We prove that there is no normal projective variety $Y$ that is birational to $X$ and such that some multiple of its anticanonical divisor is effective ...
János Kollár
doaj   +1 more source

Algebraic topology of Calabi–Yau threefolds in toric varieties [PDF]

open access: yes, 2006
We compute the integral homology (including torsion), the topological K‐theory, and the Hodge structure on cohomology of Calabi‐Yau threefold hypersurfaces and semiample complete intersections in toric varieties associated with maximal projective ...
C. Doran, J. Morgan
semanticscholar   +1 more source

Tropically constructed Lagrangians in mirror quintic threefolds

open access: yesForum of Mathematics, Sigma, 2020
We use tropical curves and toric degeneration techniques to construct closed embedded Lagrangian rational homology spheres in a lot of Calabi-Yau threefolds. The homology spheres are mirror dual to the holomorphic curves contributing to the Gromov-Witten
Cheuk Yu Mak, Helge Ruddat
doaj   +1 more source

On the rigidity of stable maps to Calabi-Yau threefolds [PDF]

open access: yes, 2006
If X is a nonsingular curve in a Calabi--Yau threefold Y whose normal bundle N_{X/Y} is a generic semistable bundle, are the local Gromov-Witten invariants of X well defined? For X of genus two or higher, the issues are subtle.
Bryan, Jim, Pandharipande, Rahul
core   +2 more sources

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