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The main purpose of this article is to develop an explicit derived deformation theory of algebraic structures at a high level of generality, encompassing in a common framework various kinds of algebras (associative, commutative, Poisson...)…

Algebraic Topology · Mathematics 2025-03-11 Gregory Ginot , Sinan Yalin

This is a report on recent progress concerning the interactions between derived algebraic geometry and deformation quantization. We present the notion of derived algebraic stacks, of shifted symplectic and Poisson structures, as well as the…

Algebraic Geometry · Mathematics 2014-04-11 Bertrand Toen

We give a geometric model for any algebraic heart in the derived category of a gentle algebra, which is equivalent to the module category of some gentle algebra. To do this, we deform the geometric model for the module category of a gentle…

Representation Theory · Mathematics 2024-09-06 Wen Chang

We develop a functorial approach to the study of the homotopy groups of spheres and Moore spaces $M(A,n)$, based on the Curtis spectral sequence and the decomposition of Lie functors as iterates of simpler functors such as the symmetric or…

Algebraic Topology · Mathematics 2014-10-01 Lawrence Breen , Roman Mikhailov

Let X be an algebraic variety with an action of an algebraic group G. Suppose X has a full exceptional collection of sheaves, and these sheaves are invariant under the action of the group. We construct a semiorthogonal decomposition of…

Algebraic Geometry · Mathematics 2015-05-13 Alexei Elagin

Systems of partial differential equations lie at the heart of physics. Despite this, the general theory of these systems has remained rather obscure in comparison to numerical approaches such as finite element models and various other…

Analysis of PDEs · Mathematics 2007-05-23 Richard Baker , Chris Doran

A model structure is defined on the category of derived differentiable schemes, and it is used to analyse the truncation 2-functor from derived manifolds to d-manifolds. It is proved that the induced 1-functor between the homotopy…

Differential Geometry · Mathematics 2014-01-14 Dennis Borisov

Given a scheme X over a field k, a generalized jet scheme parametrizes maps from Spec(A) to X, where A is a finite-dimensional, local algebra over k. We give an overview of known results concerning the dimensions of these schemes when A has…

Algebraic Geometry · Mathematics 2014-05-01 Mircea Mustata

Since curved dg algebras, and modules over them, have differentials whose square is not zero, these objects have no cohomology, and there is no classical derived category. For different purposes, different notions of "derived" categories…

K-Theory and Homology · Mathematics 2009-08-04 Bernhard Keller , Wendy Lowen , Pedro Nicolas

Jets from boosted heavy particles have a typical angular scale which can be used to distinguish them from QCD jets. We introduce a machine learning strategy for jet substructure analysis using a spectral function on the angular scale. The…

High Energy Physics - Phenomenology · Physics 2018-10-31 Sung Hak Lim , Mihoko M. Nojiri

In our [Higher-order preconnections in synthetic differential geometry of jet bundles, Beitr\"{a}ge zur Algebra und Geometrie, 45 (2004), 677-696] we have established the affine bundle theorem in the synthetic approach to jet bundles in…

Differential Geometry · Mathematics 2007-05-23 Hirokazu Nishimura

We introduce a notion of embedding codimension of an arbitrary local ring, establish some general properties, and study in detail the case of arc spaces of schemes of finite type over a field. Viewing the embedding codimension as a measure…

Algebraic Geometry · Mathematics 2022-07-06 Christopher Chiu , Tommaso de Fernex , Roi Docampo

We prove the existence of semiorthogonal decompositions of derived categories of Quot schemes of zero-dimensional quotients on curves in terms of derived categories of symmetric products of curves. The above result is a categorical analogue…

Algebraic Geometry · Mathematics 2022-07-21 Yukinobu Toda

We formalize the concept of sheaves of sets on a model site by considering variables thereof, or motifs, and we construct functorially defined derived algebraic stacks from them, thereby eliminating the necessity to choose derived…

Algebraic Geometry · Mathematics 2020-10-19 Renaud Gauthier

We give a formulation for derived analytic geometry built from commutative differential graded algebras equipped with entire functional calculus on their degree 0 part, a theory well-suited to developing shifted Poisson structures and…

Algebraic Geometry · Mathematics 2018-05-23 J. P. Pridham

We prove the representability theorem in derived analytic geometry. The theorem asserts that an analytic moduli functor is a derived analytic stack if and only if it is compatible with Postnikov towers, has a global analytic cotangent…

Algebraic Geometry · Mathematics 2022-03-18 Mauro Porta , Tony Yue Yu

Injective resolutions of modules are key objects of homological algebra, which are used for the computation of derived functors. Semiinjective resolutions of chain complexes are more general objects, which are used for the computation of…

Representation Theory · Mathematics 2024-04-24 Henrik Holm , Peter Jorgensen

The theories of strings and $D$-branes have motivated the development of non Abelian cohomology techniques in differential geometry, on the purpose to find a geometric interpretation of characteristic classes. The spaces studied here, like…

Differential Geometry · Mathematics 2008-09-04 Tsemo Aristide

Directed Algebraic Topology is beginning to emerge from various applications. The basic structure we shall use for such a theory, a 'd-space', is a topological space equipped with a family of 'directed paths', closed under some operations.…

Algebraic Topology · Mathematics 2007-05-23 Marco Grandis

This paper addresses the question: What is the de Rham theory for general differentiable spaces? We identify two potential answers and study them. In the first part, we show that the de Rham cohomology calculated using (the completion of)…

Algebraic Geometry · Mathematics 2026-02-11 Gregory Taroyan