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Related papers: On adjunctions for Fourier-Mukai transforms

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Adjunctions of two variables generalize the relationship between tensor product and the internal hom functor in a closed monoidal category. For a pair of ordinary adjunctions $(F\dashv U, F'\dashv U')$ conjugation relates natural…

Category Theory · Mathematics 2025-01-06 Simon Willerton

Raz, Shalyt, Leibtag, Kalisch, Weinbaum, Hadad, and Kaminer recently showed that formulas for $\pi$ can be organized by canonical polynomial recurrences and partially unified by a rank-$2$ Conservative Matrix Field (CMF). We prove that each…

Number Theory · Mathematics 2026-04-14 Alex Shvets

Let X be a smooth, connected, closed subvariety of a complex vector space V. The asymptotic cone as(X) is naturally equipped with a nearby cycles sheaf P coming from the specialization of X to as(X). We show that if X is transverse to…

Algebraic Geometry · Mathematics 2007-05-23 Mikhail Grinberg

A conformal map from a Riemann surface to the Euclidean four-space is explained in terms of its twistor lift. A local factorization of a differential of a conformal map is obtained. As an application, the factorization of a differential…

Differential Geometry · Mathematics 2016-11-16 Kazuyuki Hasegawa , Katsuhiro Moriya

We study birational maps among 1) the moduli space of semistable torsion sheaves of Hilbert polynomial $4m+2$ on a smooth quadric surface, 2) the moduli space of semistable torsion sheaves of Hilbert polynomial $m^{2}+3m+2$ on…

Algebraic Geometry · Mathematics 2015-11-18 Kiryong Chung , Han-Bom Moon

A map between string junctions in the affine 7-brane backgrounds and vector bundles on del Pezzo surfaces is constructed using mirror symmetry. It is shown that the lattice of string junctions with support on an affine 7-brane configuration…

High Energy Physics - Theory · Physics 2014-11-18 Tamas Hauer , Amer Iqbal

We show how the relatively initial or relatively terminal fixed points for a well-behaved functor $F$ form a pair of adjoint functors between $F$-coalgebras and $F$-algebras. We use the language of locally presentable categories to find…

Category Theory · Mathematics 2025-09-03 Ezra Schoen , Jade Master , Clemens Kupke

We present a generalization of the multiplier ideal version of inversion of adjunction, often known as the restriction theorem, to centers of arbitrary codimension. We approach inversion of adjunction from the subadjunction point of view.…

Algebraic Geometry · Mathematics 2011-04-27 Eugene Eisenstein

We prove the Mukai conjecture on the characterisation of products of projective spaces among Fano varieties for a class of locally factorial Fano varieties defined in terms of their Cox rings. The Fano varieties of this class are…

Algebraic Geometry · Mathematics 2026-04-29 Heath Pearson

We consider several related examples of Fourier-Mukai transformations involving the quot scheme. A method of showing conservativity of these Fourier-Mukai transformations is described.

Algebraic Geometry · Mathematics 2023-07-12 Indranil Biswas , Umesh V Dubey , Manish Kumar , A. J. Parameswaran

We present a new geometric approach to the flavour decomposition of an arbitrary soft supersymmetry-breaking sector in the MSSM. Our approach is based on the geometry that results from the quark and lepton Yukawa couplings, and enables us…

High Energy Physics - Phenomenology · Physics 2014-11-20 John Ellis , Robert N. Hodgkinson , Jae Sik Lee , Apostolos Pilaftsis

We develop an algorithm to count the number of virtual Fourier-Mukai partners for a given cubic fourfold, with initial input the primitive algebraic lattice and transcendental Hodge structure. Under some mild assumptions, we prove that our…

Algebraic Geometry · Mathematics 2025-09-29 Christian Böhning , Hans-Christian Graf von Bothmer , Lisa Marquand

We give an overview of the parts of arXiv:2004.04279 that deal with 2-categories, up to and including adjunction, and explain how the Segal-type approach to 2-categories adopted there is related to the more standard approaches. As an…

Algebraic Geometry · Mathematics 2021-02-03 D. Kaledin

We study an enhanced version of the Morse degeneration of Fukaya $A_\infty$ category with higher compositions given by counts of gradient flow trees. The enhancement consists in allowing morphisms from an object to itself to be chains on…

High Energy Physics - Theory · Physics 2023-01-04 Olga Chekeres , Andrey Losev , Pavel Mnev , Donald R. Youmans

We introduce self-dual manifolds and show that they can be used to encode mirror symmetry for affine-K\"{a}hler manifolds and for elliptic curves. Their geometric properties, especially the link with special lagrangian fibrations and the…

Differential Geometry · Mathematics 2007-05-23 Michele Grassi

Important objects of study in $\tau$-tilting theory include the $\tau$-tilting pairs over an algebra on the form $kQ/I$, with $kQ$ being a path algebra and $I$ an admissible ideal. In this paper, we study aspects of the combinatorics of…

Representation Theory · Mathematics 2021-09-27 Håvard Utne Terland

We study the Fourier--Mukai numbers of rational elliptic surfaces. As its application, we give an example of a pair of minimal 3-folds with Kodaira dimensions 1, $h^1(\mc O)=h^2(\mc O)=0$ such that they are mutually derived equivalent,…

Algebraic Geometry · Mathematics 2009-11-13 Hokuto Uehara

We construct new examples of derived autoequivalences for a family of higher-dimensional Calabi-Yau varieties. Specifically, we take the total spaces of certain natural vector bundles over Grassmannians G(r,d) of r-planes in a d-dimensional…

Algebraic Geometry · Mathematics 2014-02-26 Will Donovan

The Kashaev-Murakami-Murakami Volume Conjecture connects the hyperbolic volume of a knot complement to the asymptotics of certain evaluations of the colored Jones polynomials of the knot. We introduce a closely related conjecture for…

Geometric Topology · Mathematics 2021-12-28 Francis Bonahon , Helen Wong , Tian Yang

We generalize the $F_K$ invariant, i.e. $\widehat{Z}$ for the complement of a knot $K$ in the 3-sphere, the knots-quivers correspondence, and $A$-polynomials of knots, and find several interconnections between them. We associate an $F_K$…

High Energy Physics - Theory · Physics 2022-04-21 Tobias Ekholm , Angus Gruen , Sergei Gukov , Piotr Kucharski , Sunghyuk Park , Marko Stošić , Piotr Sułkowski