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This text is a survey of derived algebraic geometry. It covers a variety of general notions and results from the subject with a view on the recent developments at the interface with deformation quantization.

Algebraic Geometry · Mathematics 2014-09-15 Bertrand Toën

The problem of diffusion in a porous medium with a spatially varying porosity is considered. The particular microstructure analyzed comprises a collection of impenetrable spheres, though the methods developed are general. Two different…

Fluid Dynamics · Physics 2017-10-12 Maria Bruna , S. Jonathan Chapman

There is a need in general relativity for a consistent and useful mathematical theory defining the multiplication of tensor distributions in a geometric (diffeomorphism invariant) way. Significant progress has been made through the concept…

General Relativity and Quantum Cosmology · Physics 2011-12-12 Jozef Skakala

Every smooth homotopy 4-sphere is diffeomorphic to the 4-sphere.

Geometric Topology · Mathematics 2023-09-06 Akio Kawauchi

We present an exact mathematical transformation which converts a wide class of advection-diffusion equations into a form allowing simple and direct spatial discretization in all dimensions, and thus the construction of accurate and more…

Computational Physics · Physics 2009-11-10 R. Grima , T. J. Newman

We introduce a novel formulation for geometry on discrete points. It is based on a universal differential calculus, which gives a geometric description of a discrete set by the algebra of functions. We expand this mathematical framework so…

Mathematical Physics · Physics 2020-02-11 Yuuya Takayama

We investigate the differential smoothness of a certain family of skew Poincar\'e-Birkhoff-Witt extensions.

Rings and Algebras · Mathematics 2025-05-30 Andrés Rubiano , Armando Reyes

In this paper we analyze the dispersion property of some models involving Schr\"odinger equations. First we focus on the discrete case and then we present some results on graphs.

Analysis of PDEs · Mathematics 2014-11-21 Liviu I. Ignat

We develop some basic facts on deformations of exterior differential ideals on a smooth complex algebraic variety. With these tools we study deformations of several types of differential ideals, leading to several irreducible components of…

Algebraic Geometry · Mathematics 2025-09-05 Fernando Cukierman , César Massri

The aim of this paper is to investigate the sufficient condition for the invariance of a normal curve on a smooth immersed surface under isometry. We also find the the deviations of the tangential and normal components of the curve with…

General Mathematics · Mathematics 2019-06-13 Absos Ali Shaikh , Mohamd Saleem Lone , Pinaki Ranjan Ghosh

Our main interest in this paper is chiefly concerned with the conditions characterizing \textit{orthogonal and symplectic abstract differential geometries}. A detailed account about the sheaf-theoretic version of the \textit{symplectic…

Symplectic Geometry · Mathematics 2008-10-21 PP Ntumba , Ac Orioha

We view difference algebra as the study of algebraic objects in the topos of difference sets. The methods of topos theory and categorical logic enable us to develop difference homological algebra, identify a solid foundation for difference…

Algebraic Geometry · Mathematics 2020-01-27 Ivan Tomasic

We define and study smooth subalgebras of Bunce-Deddens C*-algebras. We discuss various aspects of noncommutative geometry of Bunce-Deddens algebras including derivations on smooth subalgebras, as well as K-Theory and K-Homology.

Operator Algebras · Mathematics 2021-12-02 Slawomir Klimek , Matt McBride , J. Wilson Peoples

A new construction of decomposition smoothness spaces of homogeneous type is considered. The smoothness spaces are based on structured and flexible decompositions of the frequency space $\mathbb{R}^d\backslash\{0\}$. We construct simple…

Functional Analysis · Mathematics 2017-12-20 Zeineb Al-Jawahri , Morten Nielsen

In this article, we describe an approach for solving partial differential equations with general boundary conditions imposed on arbitrarily shaped boundaries. A function that has a prescribed value on the domain in which a differential…

Mathematical Physics · Physics 2009-12-08 Hui-Chia Yu , Hsun-Yi Chen , K. Thornton

Most recent unsupervised non-rigid 3D shape matching methods are based on the functional map framework due to its efficiency and superior performance. Nevertheless, respective methods struggle to obtain spatially smooth pointwise…

Computer Vision and Pattern Recognition · Computer Science 2024-07-12 Dongliang Cao , Zorah Laehner , Florian Bernard

In this paper, we introduce the notion of F-manifold color algebras and study their properties which extend some results for F-manifold algebras.

Rings and Algebras · Mathematics 2021-01-13 Ming Ding , Zhiqi Chen , Jifu Li

For a manifold M we define a structure on the group action of Diff(M) on the smooth functions on M which reduces to the usual differential geometry upon differentiation at zero along the one-parameter groups of Diff(M). This ``integrated…

High Energy Physics - Theory · Physics 2007-05-23 Hendrik Grundling

In this article, we study the smoothness of the moduli space of finite quiver vector bundles over the smooth complex projective curves.

Algebraic Geometry · Mathematics 2025-03-18 Amit Kumar Singh

In this paper we describe the geometry of distributions by their symmetries, and present a simplified proof of the Frobenius theorem and some related corollaries. Then, we study the geometry of solutions of $F-$Gordon equation; A PDE which…

Differential Geometry · Mathematics 2009-08-26 Mehdi Nadjafikhah , Reza Aghayan
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