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We provide combinatorial/topological formula for the multiplicity of a complex analytic normal surface singularity whenever the analytic structure on the fixed topological type is generic.

Algebraic Geometry · Mathematics 2020-11-05 János Nagy , András Némethi

We construct a finite subgroup of Brauer-Manin obstruction for detecting the existence of integral points on integral models of homogeneous spaces of linear algebraic groups of multiplicative type. As application, the strong approximation…

Number Theory · Mathematics 2012-08-21 Dasheng Wei , Fei Xu

We give a combinatorial proof of a formula giving the partial sums of the $k$-bonacci sequence as alternating sums of powers of two multiplied by binomial coefficients. As a corollary we obtain a formula for the $k$-bonacci numbers.

Combinatorics · Mathematics 2022-08-03 Harold R. Parks , Dean C. Wills

We prove recursive formulas for sums of squares and sums of triangular numbers in terms of sums of divisors functions and we give a variety of consequences of these formulas. Intermediate applications include statements about positivity of…

Number Theory · Mathematics 2011-06-23 Mohamed El Bachraoui

We give formulas for the multiplicity of any affine isolated zero of a generic polynomial system of n equations in n unknowns with prescribed sets of monomials. First, we consider sets of supports such that the origin is an isolated root of…

Algebraic Geometry · Mathematics 2018-08-16 María Isabel Herrero , Gabriela Jeronimo , Juan Sabia

We prove the cyclic sum formulas for certain two-parameter multiple series. These are new and non-trivial generalizations of the cyclic sum formulas for multiple zeta values and multiple zeta-star values.

Number Theory · Mathematics 2022-06-03 Masahiro Igarashi

Let S be a finitely generated standard multi-graded algebra over a Noetherian local ring A. This paper first expresses mixed multiplicities of S in term of Hilbert-Samuel multiplicity that explained the mixed multiplicities S as the…

Commutative Algebra · Mathematics 2009-02-10 Duong Quoc Viet , Truong Thi Hong Thanh

We prove that a Poisson-Newton formula, in a broad sense, is associated to each Dirichlet series with a meromorphic extension to the whole complex plane of finite order. These formulas simultaneously generalize the classical Poisson formula…

Number Theory · Mathematics 2014-10-28 Vicente Muñoz , Ricardo Pérez-Marco

Let $R$ be a commutative Noetherian local ring. We prove a variety of new formulae for modules of finite quasi-projective or finite quasi-injective dimension. These include the Derived Depth Formula, itself an extension of Auslander famous…

Commutative Algebra · Mathematics 2026-05-11 Luigi Ferraro , Justin Lyle

We develop a formula (Theorem 5.1) which allows to compute top Chern classes of vector bundles on the vanishing locus $V(s)$ of a section of this bundle. This formula particularly applies in the case when $V(s)$ is the union of locally…

Algebraic Geometry · Mathematics 2007-05-23 Georg Hein

We consider the problem of estimating the multiplicity of a polynomial when restricted to the smooth analytic trajectory of a (possibly singular) polynomial vector field at a given point or points, under an assumption known as the…

Number Theory · Mathematics 2014-11-20 Gal Binyamini

We recall the lower-upper varieties from [Knutson '05] and give a formula for their equivariant cohomology classes, as a sum over generic pipe dreams. We recover as limits the classic and bumpless pipe dream formulae for double Schubert…

Combinatorics · Mathematics 2024-11-19 Allen Knutson , Paul Zinn-Justin

A new application of polytope theory to Lie theory is presented. Exponential sums of convex lattice polytopes are applied to the characters of irreducible representations of simple Lie algebras. The Brion formula is used to write a polytope…

Mathematical Physics · Physics 2007-05-23 M. A. Walton

We provide direct elementary proofs of several explicit expressions for Bernoulli numbers and Bernoulli polynomials. As a byproduct of our method of proof, we provide natural definitions for generalized Bernoulli numbers and polynomials of…

Number Theory · Mathematics 2012-05-04 Lazhar Fekih-Ahmed

In a recent beautiful but technical article, William Y.C. Chen, Qing-Hu Hou, and Doron Zeilberger developed an algorithm for finding and proving congruence identities (modulo primes) of indefinite sums of many combinatorial sequences,…

Combinatorics · Mathematics 2016-06-28 Moa Apagodu , Doron Zeilberger

Using a sums of squares formula for two variable polynomials with no zeros on the bidisk, we are able to give a new proof of a representation for distinguished varieties. For distinguished varieties with no singularities on the two-torus,…

Complex Variables · Mathematics 2013-02-06 Greg Knese

We simplify the construction of projection complexes due to Bestvina-Bromberg-Fujiwara. To do so, we introduce a sharper version of the Behrstock inequality, and show that it can always be enforced. Furthermore, we use the new setup to…

Group Theory · Mathematics 2017-11-27 Mladen Bestvina , Ken Bromberg , Koji Fujiwara , Alessandro Sisto

We discuss two theorems in analytic number theory and combinatory analysis that have seen increased use in recent years. A corollary to a Tauberian theorem of Ingham allows one to quickly prove asymptotic formulas for arithmetic sequences,…

Number Theory · Mathematics 2020-11-26 Kathrin Bringmann , Chris Jennings-Shaffer , Karl Mahlburg

We present a formula for computing proper pushforwards of classes in the Chow ring of a projective bundle under the projection $\pi:\Pbb(\Escr)\rightarrow B$, for $B$ a non-singular compact complex algebraic variety of any dimension. Our…

Algebraic Geometry · Mathematics 2015-05-27 James Fullwood

We obtain similar types of conclusions as that of Br\"{u}ck [1] for two differential polynomials which in turn radically improve and generalize several existing results. Moreover, a number of examples have been exhibited to justify the…

Complex Variables · Mathematics 2022-09-15 Abhijit Banerjee , Bikash Chakraborty