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We introduce a generalization of symmetric functions and apply the resulting theory to compute the class in the Grothendieck ring of varieties of the space of geometrically irreducible hypersurfaces of a fixed degree in projective space.

Algebraic Geometry · Mathematics 2024-11-27 Asvin G , Andrew O'Desky

We introduce a new class of generalised quadratic forms over totally real number fields, which is rich enough to capture the arithmetic of arbitrary systems of quadrics over the rational numbers. We explore this connection through a version…

Number Theory · Mathematics 2024-11-20 Tim Browning , Lillian B. Pierce , Damaris Schindler

PCA can be used for rotation invariant features, describing a shape with its $p_{ab}=E[(x_i-E[x_a])(x_b-E[x_b])]$ covariance matrix approximating shape by ellipsoid, allowing for rotation invariants like its traces of powers. However, real…

Computer Vision and Pattern Recognition · Computer Science 2026-01-08 Jarek Duda

The metohod of ortogonal rotations introduced in the previous papers of the author is used for construction of the explicit form the generators of the simple roots for quantum (and ussual) semisimple algebras. All calculations are presented…

Mathematical Physics · Physics 2007-05-23 A. N. Leznov

We study the homogeneous involutions on the full square matrices over an algebraically closed field endowed with a division grading with commutative support. We obtain the classification of the isomorphism and equivalence classes for the…

Rings and Algebras · Mathematics 2026-01-30 Micael Said Garcia , Cassia Ferreira Sampaio

We give an explicit construction of a deformation quantization of the algebra of functions on a Poisson manifolds, based on Kontsevich's local formula. The deformed algebra of functions is realized as the algebra of horizontal sections of a…

Quantum Algebra · Mathematics 2008-01-29 Alberto S. Cattaneo , Giovanni Felder , Lorenzo Tomassini

We give a general expression of spherical functions on $p$-adic homogeneous spaces of $G$, based on data of $G$ and functional equations of spherical functions. Then, we show a unified method to obtain functional equations of spherical…

Number Theory · Mathematics 2009-04-25 Yumiko Hironaka

We consider chaining multiplicative-inverse operations in finite fields under alternating polynomial bases. When using two distinct polynomial bases to alternate the inverse operation we obtain a partition of $\mathbb F_{p^n}\setminus…

Number Theory · Mathematics 2025-07-31 Divyarthi Mohan , R. Ravindraraj

We introduce a new approach to the anisotropic Calder\'on problem, based on a map called Poisson embedding that identifies the points of a Riemannian manifold with distributions on its boundary. We give a new uniqueness result for a large…

Analysis of PDEs · Mathematics 2019-04-05 Matti Lassas , Tony Liimatainen , Mikko Salo

Introducing the notion of stabilized fundamental group for the complement of a branch curve in $CP^2$, we define effectively computable invariants of symplectic 4-manifolds that generalize those previously introduced by Moishezon and…

Geometric Topology · Mathematics 2007-05-23 D. Auroux , S. K. Donaldson , L. Katzarkov , M. Yotov

This paper is the second part of arXiv:0707.1766. We develope harmonic analysis in some categories of filtered abelian groups and vector spaces over the fields R or C. These categories contain as objects local fields and adelic spaces…

Algebraic Geometry · Mathematics 2011-10-24 D. V. Osipov , A. N. Parshin

Local connection forms provide a very useful tool for handling connections on principal bundles, because they ignore any complexities of the total space and, essentially, involve only two fundamental features of the structure group, namely…

Differential Geometry · Mathematics 2013-06-19 Efstathios Vassiliou

We examine hypergeometric functions in the finite field, p-adic and classical settings. In each setting, we prove a formula which splits the hypergeometric function into a sum of lower order functions whose arguments differ by roots of…

Number Theory · Mathematics 2024-07-03 Dermot McCarthy , Mohit Tripathi

Cuspidal representations of a reductive p-adic group G over a field of characteristic different from p are relatively injective and projective with respect to extensions that split by a U-equivariant linear map for any subgroup U that is…

Representation Theory · Mathematics 2016-01-26 Ralf Meyer

This paper describes several new problems and ideas concerning algebraic geometry and complexity theory. It first uses the idea of coloring graphs with elements of finite fields. This procedure then shows that graph coloring problems can be…

Algebraic Geometry · Mathematics 2025-03-20 Paul Hriljac

This note constructs a local generalized finite element basis for elliptic problems with heterogeneous and highly varying coefficients. The basis functions are solutions of local problems on vertex patches. The error of the corresponding…

Numerical Analysis · Mathematics 2013-08-15 Axel Malqvist , Daniel Peterseim

We develop an invariant local theory of Lorentz surfaces in pseudo-Euclidean 4-space by use of a linear map of Weingarten type. We find a geometrically determined moving frame field at each point of the surface and obtain a system of…

Differential Geometry · Mathematics 2017-04-27 Yana Aleksieva , Georgi Ganchev , Velichka Milousheva

This work presents an efficient quadrature rule for shell analysis fully integrated in CAD by means of Isogeometric Analysis (IGA). General CAD-models may consist of trimmed parts such as holes, intersections, cut-offs etc. Therefore, IGA…

Computational Engineering, Finance, and Science · Computer Science 2023-08-09 Michael Loibl , Leonardo Leonetti , Alessandro Reali , Josef Kiendl

In this paper, we present a patch-based representation of surfaces, PolyFit, which is obtained by fitting jet functions locally on surface patches. Such a representation can be learned efficiently in a supervised fashion from both analytic…

Computer Vision and Pattern Recognition · Computer Science 2026-01-09 Ruochen Chen , Thuy Tran , Shaifali Parashar

We extend the theory of fields/distributions developed the paper "A Feigin-Frenkel theorem with n singularities" to a general base scheme. In order to do so we introduce suitable notions of topological sheaves on schemes and study their…

Algebraic Geometry · Mathematics 2025-09-30 Luca Casarin , Andrea Maffei