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When undergraduates ask me what geometric group theorists study, I describe a theorem due to Gromov which relates the groups with an intrinsic geometry like that of the hyperbolic plane to those in which certain computations can be…

Group Theory · Mathematics 2014-12-08 Jon McCammond

We classify possible supersymmetry-preserving relevant, marginal, and irrelevant deformations of unitary superconformal theories in $d \geq 3$ dimensions. Our method only relies on symmetries and unitarity. Hence, the results are model…

High Energy Physics - Theory · Physics 2016-12-21 Clay Cordova , Thomas T. Dumitrescu , Kenneth Intriligator

This is an expository article on the techniques of quantization as they are applied to Gromov-Witten theory and related areas.

Algebraic Geometry · Mathematics 2013-09-05 Emily Clader , Nathan Priddis , Mark Shoemaker

In this paper, we proved a special case of the DDVV Conjecture.

Differential Geometry · Mathematics 2008-10-31 Timothy Choi , Zhiqin Lu

We consider four approaches to relative Gromov-Witten theory and Gromov-Witten theory of degenerations: Jun Li's original approach, Bumsig Kim's logarithmic expansions, Abramovich-Fantechi's orbifold expansions, and a logarithmic theory…

Algebraic Geometry · Mathematics 2013-05-28 Dan Abramovich , Steffen Marcus , Jonathan Wise

This is an expository article on relating the Chebotarev Density Theorem to the Bateman-Horn constant.

Number Theory · Mathematics 2015-03-19 Timothy Foo

We express all equivariant Gromov-Witten invariants of the projective line as matrix elements of explicit operators acting in the Fock space. As a consequence, we prove the equivariant theory is governed by the 2-Toda hierarchy of Ueno and…

Algebraic Geometry · Mathematics 2007-05-23 Andrei Okounkov , Rahul Pandharipande

In this article we study atomic and molecular decompositions in $2$-microlocal Besov and Triebel--Lizorkin spaces with variable integrability. We show that, in most cases, the convergence implied in such decompositions holds not only in the…

Functional Analysis · Mathematics 2015-12-21 Alexandre Almeida , António Caetano

In this paper we establish some subnormal embeddings of groups into groups with additional properties; in particular embeddings of countable groups into 2-generated groups with some extra properties. The results obtained are generalizations…

Group Theory · Mathematics 2007-05-23 Vahagn H. Mikaelian

We establish coupled fixed point theorems for contraction involving rational expressions in partially ordered metric spaces.

General Topology · Mathematics 2010-05-19 Bessem Samet , Habib Yazidi

We recall the notions of conformal and quasiconformal mappings \textit{in the sense of Gromov}, extending the classical notions of conformal and quasiconformal mappings, and prove the following theorem. {\em If the mapping $ F:…

Complex Variables · Mathematics 2021-08-22 V. A. Zorich

We introduce a notion of oriented dialgebra and develop a cohomology theory for oriented dialgebras based on the possibility to mix the standard chain complexes computing group cohomology and associative dialgebra cohomology. We also…

Rings and Algebras · Mathematics 2020-09-29 Ali N. A. Koam , Ripan Saha

This paper is a continuation of ``Operads, Grothendieck topologies and deformation theory'' (alg-geom/9502010). We show how to develop a cohomology theory that would control deformations of a sheaf of associative algebras over a scheme by…

alg-geom · Mathematics 2008-02-03 Dennis Gaitsgory

We prove a version of Gromov's compactness theorem for pseudo-holomorphic curves which holds locally in the target symplectic manifold. This result applies to sequences of curves with an unbounded number of free boundary components, and in…

Symplectic Geometry · Mathematics 2014-11-11 Joel W. Fish

In [A. V. Ivashchenko, Contractible transformations do not change the homology groups of graphs, Discrete Mathematics 126 (1) (1994) p 159,170], Ivashchenko started with the study of contractible graphs, he began with this because they have…

Combinatorics · Mathematics 2019-04-24 Martín-Eduardo Frías Armenta

Understanding the spontaneous emergence of dislocation patterns during plastic deformation is a long standing challenge in dislocation theory. During the past decades several phenomenological continuum models of dislocation patterning were…

Materials Science · Physics 2016-06-22 Istvan Groma , Michael Zaiser , Peter Dusan Ispanovity

In the recent development in a various disciplines of physics, it is noted the need for including the deformed versions of the exponential functions. In this paper, we consider the deformations which have two purposes: to have them like…

Classical Analysis and ODEs · Mathematics 2010-05-28 Miomir S. Stanković , Sladjana D. Marinković , Predrag M. Rajković

We study analogues of Sidorenko's conjecture and the forcing conjecture in oriented graphs, showing that natural variants of these conjectures in directed graphs are equivalent to the asymmetric, undirected analogues of the conjectures.

Combinatorics · Mathematics 2022-11-01 Jacob Fox , Zoe Himwich , Nitya Mani , Yunkun Zhou

The aim of this text is to provide an elementary and self-contained exposition of Gromov's argument on topological overlap (the presentation is based on Gromov's work, as well as two follow-up papers of Matousek and Wagner, and of…

Geometric Topology · Mathematics 2015-08-05 Amir Yehudayoff

We give a proof of the Radford's Biproduct Theorem in S. Montgomery's book [Hopf Algebras and Their Actions on Rings, CBMS 82, AMS,1993.] by using Majid's braided diagrams method and Yu.Bespalov and V. Lyubashenko's "t-angles.sty" package.

Quantum Algebra · Mathematics 2022-04-12 Tao Zhang