English
Related papers

Related papers: On the Ext Analog of the Euler Characteristic

200 papers

The double zeta function was first studied by Euler in response to a letter from Goldbach in 1742. One of Euler's results for this function is a decomposition formula, which expresses the product of two values of the Riemann zeta function…

Number Theory · Mathematics 2007-06-13 David M. Bradley

In this paper we give an attempt to extend some arithmetic properties such as multiplicativity, convolution products to the setting of operators theory. We provide a significant examples which are of interest in number theory. We also give…

Classical Analysis and ODEs · Mathematics 2018-04-24 Fethi Bouzeffour , Wissem Jedidi

The Euler equations of ideal gas dynamics posess a remarkable nonlinear involutional symmetry which allows one to factor out an arbitrary uniform expansion or contraction of the system. The nature of this symmetry (called by cosmologists…

Astrophysics · Physics 2009-10-31 L. O'C. Drury , J. T. Mendonca

Using the weak factorization theorem we give a simple presentation for the value group of the universal Euler characteristic with compact support for varieties of characteristic zero and describe the value group of the universal Euler…

Algebraic Geometry · Mathematics 2007-05-23 Franziska Bittner

We study a modified version of the classical Ulrich modules, which we call $c$-Ulrich. Unlike the traditional setting, $c$-Ulrich modules always exist. We prove that these modules retain many of the essential properties and applications…

Commutative Algebra · Mathematics 2023-08-30 Ela Celikbas , Olgur Celikbas , Justin Lyle , Ryo Takahashi , Yongwei Yao

Everyone knows that the Euler characteristic of a combinatorial manifold is given by the alternating sum of its numbers of simplices. It is shown that there are other linear combinations of the numbers of simplices which are combinatorial…

Geometric Topology · Mathematics 2007-05-23 Justin Roberts

We consider the problem of computing the Euler characteristic of an abstract simplicial complex given by its vertices and facets. We show that this problem is #P-complete and present two new practical algorithms for computing Euler…

Computational Geometry · Computer Science 2011-12-21 Bjarke Hammersholt Roune , Eduardo Sáenz de Cabezón

Let $\alpha\in\mathbb{C}$ in the upper half-plane and let $I$ be an interval. We construct an analogue of Selberg's majorant of the characteristic function of $I$ that vanishes at the point $\alpha$. The construction is based on the…

Classical Analysis and ODEs · Mathematics 2019-02-20 Michael Kelly

We formulate and prove a formula for transgressing characteristic forms in general associated bundles following a method of Chern. As applications, we derive D. Johnson's explicit formula for such general transgression and Chern's first…

Differential Geometry · Mathematics 2011-02-04 Zhaohu Nie

An Eulerian orientation is an orientation of the edges of a graph such that every vertex is balanced: its in-degree equals its out-degree. Counting Eulerian orientations corresponds to the crucial partition function in so-called ``ice-type…

Combinatorics · Mathematics 2024-12-23 Mikhail Isaev , Brendan D. McKay , Rui-Ray Zhang

Euler defines a function f(x) somehow as an infinite product and a generalization of [x], where [x] ist, what we now call following Legendre the Gamma-Funktion. He gets some recursive relationships for f(x), by applying some very nice…

History and Overview · Mathematics 2012-01-27 Leonhard Euler , Artur Diener , Alexander Aycock

Inspired by Goette-Semmelmann \cite{GSSU2002}, we derive an estimate for the scalar curvature without a nonnegativity assumption on curvature operator. As an application, we show that, on an even dimensional closed manifold with nonzero…

Differential Geometry · Mathematics 2025-01-03 Yukai Sun , Changliang Wang

Several authors have proved Lefschetz type formulae for the local Euler obstruction. In particular, a result of this type is proved in [BLS].The formula proved in that paper turns out to be equivalent to saying that the local Euler…

Algebraic Geometry · Mathematics 2007-05-23 J. -P. Brasselet , D. Massey , A. J. Parameswaran , J. Seade

We prove two geometric index theorems for a family of first-order elliptic operators over a manifold with boundary by computing eta form representatives for the Chern character classes of the index bundle. The eta forms occur as relative…

Differential Geometry · Mathematics 2007-05-23 S. Scott

We define a truncated Euler polynomial $E_{m,n}(x)$ as a generalization of the classical Euler polynomial $E_n(x)$. In this paper we give its some properties and relations with the hypergeometric Bernoulli polynomial.

Number Theory · Mathematics 2018-02-22 Takao Komatsu , Claudio de J. Pita Ruiz

Lambda calculi with algebraic data types lie at the core of functional programming languages and proof assistants, but conceal at least two fundamental theoretical problems already in the presence of the simplest non-trivial data type, the…

Logic in Computer Science · Computer Science 2019-05-21 Danko Ilik

In a previous paper it was shown that the Forward Euler method applied to differential inclusions where the right-hand side is a Lipschitz continuous set-valued function with uniformly bounded, compact values, converges with rate one. The…

Numerical Analysis · Mathematics 2009-02-02 Mattias Sandberg

We give explicit computations of the $\Gamma$-Euler characteristic of several families of orbit space definable translation groupoids. These include the translation groupoids associated to finite-dimensional linear representations of the…

Algebraic Topology · Mathematics 2025-08-27 Carla Farsi , Hannah Mobley , Christopher Seaton

In this paper, we study some properties of Euler polynomials arising from umbral calculus. Finally, we give some interesting identities of Euler polynomials using our results. Recently, Dere and Simsek have studied umbral calculus related…

Number Theory · Mathematics 2012-11-29 Dae San Kim , Taekyun Kim , Seog-Hoon Rim

We formalise the teleparallel version of extended geometry (including gravity) by the introduction of a complex, the differential of which provides the linearised dynamics. The main point is the natural replacement of the two-derivative…

High Energy Physics - Theory · Physics 2023-05-24 Martin Cederwall , Jakob Palmkvist