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The spherical symmetry Black holes are considered in expanding background. The singularity line and the marginally trapped tube surface behavior are discussed. In particular, we address the conditions of whether a dynamical horizon forms…

General Relativity and Quantum Cosmology · Physics 2021-12-10 J. T. Firouzjaee

We prove the homological mirror conjecture for toric del Pezzo surfaces. In this case, the mirror object is a regular function on an algebraic torus. We show that the derived Fukaya category of this mirror coincides with the derived…

Algebraic Geometry · Mathematics 2007-05-23 Kazushi Ueda

Let $(X, A)$ be a polarized nonsingular toric 3-fold with not effective $A+K_X$. Then for any ample line bundle $L$ on $X$ the image of the embedding by the complete linear system of $L$ is an intersections of quadrics.

Algebraic Geometry · Mathematics 2020-04-10 Shoetsu Ogata

The central fiber of a Gross-Siebert type toric degeneration is known to satisfy homological mirror symmetry: its category of coherent sheaves is equivalent to the wrapped Fukaya category of a certain exact symplectic manifold. Here we show…

Symplectic Geometry · Mathematics 2024-09-13 Vivek Shende

We find an explicit matrix model computing the refined topological vertex, starting from its representation in terms of plane partitions. We then find the spectral curve of that matrix model, and thus the mirror symmetry of the refined…

High Energy Physics - Theory · Physics 2011-07-27 B. Eynard , C. Kozcaz

This paper constructs tilting bundles obtained from full strong exceptional collections of line bundles on all smooth $4$-dimensional toric Fano varieties. The tilting bundles lead to a large class of explicit Calabi-Yau-$5$ algebras,…

Algebraic Geometry · Mathematics 2015-01-27 Nathan Prabhu-Naik

We use toric geometry to study open string mirror symmetry on compact Calabi-Yau manifolds. For a mirror pair of toric branes on a mirror pair of toric hypersurfaces we derive a canonical hypergeometric system of differential equations,…

High Energy Physics - Theory · Physics 2009-10-02 M. Alim , M. Hecht , P. Mayr , A. Mertens

We introduce the notion of a tropical coamoeba which gives a combinatorial description of the Fukaya category of the mirror of a toric Fano stack. We show that the polyhedral decomposition of a real n-torus into (n + 1) permutohedra gives a…

Symplectic Geometry · Mathematics 2014-07-15 Masahiro Futaki , Kazushi Ueda

Over a smooth projective toric variety we study toric sheaves, that is, reflexive sheaves equivariant with respect to the acting torus, from a polyhedral point of view. One application is the explicit construction of the torus invariant…

Algebraic Geometry · Mathematics 2024-12-24 Klaus Altmann , Andreas Hochenegger , Frederik Witt

For one-dimensional systems of conservation laws admitting two additional conservation laws we assign a ruled surface of codimension two in projective space. We call two such systems dual if the corresponding ruled surfaces are dual. We…

Differential Geometry · Mathematics 2019-12-30 Sergey I. Agafonov

Mirror symmetry relates type IIB string theory on a Calabi-Yau 3-fold to type IIA on the mirror CY manifold, whose complex structure and Kaehler moduli spaces are exchanged. We show that the mirror map is a particular case of a more general…

High Energy Physics - Theory · Physics 2014-09-22 Dan Israel

We study mirror symmetry of type II strings on manifolds with the exceptional holonomy groups $G_2$ and Spin(7). Our central result is a construction of mirrors of Spin(7) manifolds realized as generalized connected sums. In parallel to…

High Energy Physics - Theory · Physics 2020-01-08 Andreas P. Braun , Suvajit Majumder , Alexander Otto

Let X be a smooth elliptic fibration over a smooth base B. Under mild assumptions, we establish a Fourier-Mukai equivalence between the derived categories of two objects, each of which is an O^* gerbe over a genus one fibration which is a…

Algebraic Geometry · Mathematics 2007-05-23 Ron Donagi , Tony Pantev

These notes are aimed at mathematicians working on topics related to mirror symmetry, but are unfamiliar with the physical origins of this subject. We explain the physical concepts that enable this surprising duality to exist, using the…

High Energy Physics - Theory · Physics 2015-10-23 Callum Quigley

Localization methods have produced explicit expressions for the sphere partition functions of (2,2) superconformal field theories. The mirror symmetry conjecture predicts an IR duality between pairs of Abelian gauged linear sigma models, a…

High Energy Physics - Theory · Physics 2021-10-27 Travis Maxfield , David R. Morrison , M. Ronen Plesser

For a complex reductive group $G$, we prove a homological mirror symmetry between the wrapped Fukaya category of the affine Toda system for $G$ and coherent sheaves on the regular centralizer group scheme for the Langlands dual group…

Symplectic Geometry · Mathematics 2026-05-21 Xin Jin , Zhiwei Yun

We study full exceptional collections of line bundles on surfaces. We prove that any full strong exceptional collection of line bundles on a weak del Pezzo surface of degree $\ge 3$ is an augmentation in the sense of L.Hille and M.Perling,…

Algebraic Geometry · Mathematics 2017-10-18 Alexey Elagin , Junyan Xu , Shizhuo Zhang

We interpret symplectic geometry as certain sheaf theory by constructing a sheaf of curved A_\infty algebras which in some sense plays the role of a "structure sheaf" for symplectic manifolds. An interesting feature of this "structure…

Symplectic Geometry · Mathematics 2013-09-20 Junwu Tu

We study homological mirror symmetry for not necessarily compactly supported coherent sheaves on the minimal resolutions of A_n-singularities. An emphasis is put on the relation with the Strominger-Yau-Zaslow conjecture.

Symplectic Geometry · Mathematics 2014-02-19 Kwokwai Chan , Kazushi Ueda

We consider mirror symmetry for Fano manifolds, and describe how one can recover the classification of 3-dimensional Fano manifolds from the study of their mirrors. We sketch a program to classify 4-dimensional Fano manifolds using these…

Algebraic Geometry · Mathematics 2021-06-02 Tom Coates , Alessio Corti , Sergey Galkin , Vasily Golyshev , Alexander Kasprzyk
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