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I give an interpretation of the fundamental theorem of algebra based on supersymmetry and the Witten index. The argument gives a physical explanation of why a real polynomial of degree $n$ need not have $n$ real zeroes, while a complex…

High Energy Physics - Theory · Physics 2009-10-28 Donald Spector

We use Beltrami's theorem as an excuse to present some arguments from parabolic differential geometry without any of the parabolic machinery.

Differential Geometry · Mathematics 2018-01-23 Michael Eastwood

This is an expository paper in which we explain how basic, standard, results about simple Lie algebras can be obtained by geometric arguments, following ideas of Cartan, Richardson and others.

Differential Geometry · Mathematics 2007-05-23 S. K. Donaldson

The leading idea of the paper is to treat the theorem of Wigner with methods inspired by geometry. The exercise mentionned in the title has two functions: On the one hand it can serve as a pedagogical text in order to make the reader…

Mathematical Physics · Physics 2011-07-04 Manfred Buth

Cut-elimination theorems constitute one of the most important classes of theorems of proof theory. Since Gentzen's proof of the cut-elimination theorem for the system $\mathbf{LK}$, several other proofs have been proposed. Even though the…

Logic · Mathematics 2024-10-08 Sayantan Roy

We provide a constructive treatment of basic results in the theory of central simple algebras. One main issue is the fact that one starting result, Wedderburn's Theorem stating that a simple algebra is a matrix algebra over a skew field, is…

Rings and Algebras · Mathematics 2023-07-03 Thierry Coquand , Henri Lombardi , Stefan Neuwirth

We describe all operations from a theory A^* obtained from Algebraic Cobordism of M.Levine-F.Morel by change of coefficients to any oriented cohomology theory B^* (in the case of a field of characteristic zero). We prove that such an…

Algebraic Geometry · Mathematics 2020-02-17 Alexander Vishik

Existence theorem is proven for the generating equations of the split involution constraint algebra. The structure of the general solution is established, and the characteristic arbitrariness in generating functions is described.

High Energy Physics - Theory · Physics 2009-10-31 I. A. Batalin , S. L. Lyakhovich , I. V. Tyutin

We propose a proof for conjectures of Langlands, Shelstad and Waldspurger known as the fundamental lemma for Lie algebras and the non-standard fundamental lemma. The proof is based on a study of the decomposition of the l-adic cohomology of…

Algebraic Geometry · Mathematics 2008-05-02 Ngo Bao Chau

We develop Algebraic Phase Theory (APT), an axiomatic framework for extracting intrinsic algebraic structure from phase based analytic data. From minimal admissible phase input we prove a general phase extraction theorem that yields…

Rings and Algebras · Mathematics 2026-02-18 Joe Gildea

In this paper we use the Vandermonde matrices and their properties to give a new proof of the classical result of Karl Weierstrass about the approximation of continuous functions $f$ on closed intervals, using a sequence of polynomials. The…

Classical Analysis and ODEs · Mathematics 2025-07-02 José M. González Barrios , Alberto Contreras-Cristán , Patricia I. Romero-Mares

A completeness theorem is proved involving a system of integro-differential equations with some $\lambda$-depending boundary conditions. Also some sufficient conditions for the root functions to form a Riesz basis are established.

Functional Analysis · Mathematics 2013-09-27 Seppo Hassi , Leonid Oridoroga

We investigate an analogue of the Wedderburn principal theorem for associative conformal algebras with finite faithful representations. It is shown that the radical splitting property for an algebra of this kind holds if the maximal…

Rings and Algebras · Mathematics 2008-08-04 Pavel Kolesnikov

We describe a completely algebraic axiom system for intertwining operators of vertex algebra modules, using algebraic flat connections, thus formulating the concept of a {\em tree algebra}. Using the Riemann-Hilbert correspondence, we…

Quantum Algebra · Mathematics 2011-02-11 Igor Kriz , Yang Xiu

In this paper we present the first-ever computer formalization of the theory of Gr\"obner bases in reduction rings, which is an important theory in computational commutative algebra, in Theorema. Not only the formalization, but also the…

Symbolic Computation · Computer Science 2016-07-22 Alexander Maletzky

The idea of generating integrals analogous to generating functions is first introduced in this paper. A new proof of the well-known Finite Harmonic Series Theorem in Analysis and Analytical Number Theory is then obtained by the method of…

Classical Analysis and ODEs · Mathematics 2007-05-23 S. C. Woon

This article presents simple and easy proofs of the Implicit Function Theorem and the Inverse Function Theorem, in this order, both of them on a finite-dimensional Euclidean space, that employ only the Intermediate Value Theorem and the…

Classical Analysis and ODEs · Mathematics 2022-02-16 Oswaldo Rio Branco de Oliveira

The Fundamental Theorem of Algebra can be thought of as a statement about the real numbers as a space, considered as an algebraic set over the real numbers as a field. This paper introduces what it means for an algebraic set or affine…

Algebraic Geometry · Mathematics 2025-10-17 Neil Epstein

This text, based on the author's Bachelor's thesis, introduces the theory of Algebraic Operads, a mathematical formalism that provides a unifying framework for modern algebra. We demonstrate how the fundamental theories of associative,…

Quantum Algebra · Mathematics 2025-11-11 Felicia Ferraioli

This is an elementary exposition of the basic descent theorems for algebraic schemes over fields (Grothendieck, Weil, ...).

Algebraic Geometry · Mathematics 2024-06-11 James S Milne