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We obtain another proof of Hermite's integral for the Hurwitz zeta function.

Classical Analysis and ODEs · Mathematics 2009-08-12 Donal F Connon

We define a new Hurwitz problem which is essentially a small core of the simple Hurwitz problem. The corresponding Hurwitz numbers have simpler formulae, satisfy effective recursion relations and determine the simple Hurwitz numbers. We…

Geometric Topology · Mathematics 2013-12-31 Norman Do , Paul Norbury

We prove that Witten's Conjecture [arXiv:hep-th/9411102] on the relationship between the Donaldson and Seiberg-Witten series for a four-manifold of Seiberg-Witten simple type with $b_1=0$ and odd $b_2^+\geq 3$ follows from our…

Differential Geometry · Mathematics 2016-04-08 Paul M. N. Feehan , Thomas G. Leness

We propose a conjectural formula expressing the generating series of some Hodge integrals in terms of representation theory of Kac-Moody algebras. Such generating series appear in calculations of Gromov-Witten invariants by localization…

Algebraic Geometry · Mathematics 2007-05-23 Jian Zhou

We give a new proof of the cut-and-join equation for the monotone Hurwitz numbers, derived first by Goulden, Guay-Paquet, and Novak. Our proof in particular uses a combinatorial technique developed by Han. The main interest in this…

Algebraic Geometry · Mathematics 2019-05-16 Petr Dunin-Barkowski , Reinier Kramer , Alexandr Popolitov , Sergey Shadrin

We derive an algorithm to produce explicit formulas for certain generating functions of double Hurwitz numbers. These formulas generalize a formula of Goulden, Jackson and Vakil for one part double Hurwitz numbers. Immediate consequences…

Combinatorics · Mathematics 2010-08-20 Paul Johnson

By using the method in [5], the aim of the present note is to generalize the Riemann integral in probability introduced in [7], to Kurzweil-Henstock integral in probability. Properties of the new integral are proved.

Classical Analysis and ODEs · Mathematics 2014-08-07 Sorin G. Gal

In this paper, we aim to provide an accessible survey to various formulae for calculating single Hurwitz numbers. Single Hurwitz numbers count certain classes of meromorphic functions on complex algebraic curves and have a rich geometric…

Algebraic Geometry · Mathematics 2020-02-25 Jared Ongaro

In this paper, we present some Hurwitz-Hodge integral identities which are derived from the Laplace transform of the cut-and-join equation for the orbifold Hurwitz numbers. As an application, we prove a conjecture on Hurwitz-Hodge integral…

Algebraic Geometry · Mathematics 2013-05-07 Wei Luo , Shengmao Zhu

We study the Hodge conjecture for certain families of varieties over arithmetic quotients of balls and Siegel domain of degree two. As a byproduct, we derive formulas for Hodge numbers in terms of automorphic forms.

Algebraic Geometry · Mathematics 2023-11-02 Xiaojiang Cheng

We describe the applications of localization methods, in particular the functorial localization formula, in the proofs of several conjectures from string theory. Functorial localization formula pushes the computations on complicated moduli…

Mathematical Physics · Physics 2007-05-23 Kefeng Liu

We reduce the calculation of the simplest Hodge integrals to some sums over decorated trees. Since Hodge integrals are already calculated, this gives a proof of a rather interesting combinatorial theorem and a new representation of…

Algebraic Geometry · Mathematics 2017-08-22 S. V. Shadrin

The Hodge conjecture is a major open problem in complex algebraic geometry. In this survey, we discuss the main cases where the conjecture is known, and also explain an approach by Griffiths-Green to solve the problem.

Algebraic Geometry · Mathematics 2021-05-12 Genival da Silva

In this paper, we give a simple counter example to the famous Hodge conjecture.

General Mathematics · Mathematics 2013-01-23 Renyi Ma

We give a short and direct proof of the $\lambda_g$-Conjecture. The approach is through the Ekedahl-Lando-Shapiro-Vainshtein theorem, which establishes the ``polynomiality'' of Hurwitz numbers, from which we pick off the lowest degree…

Algebraic Geometry · Mathematics 2007-05-23 Ian P. Goulden , David M. Jackson , Ravi Vakil

In this paper we give a mathematical proof of Dodgson algorithm [1]. Recently Zeilberger [2] gave a bijective proof. Our techniques are based on determinant properties and they are obtained by induction.

Combinatorics · Mathematics 2007-12-04 Kouachi Said , Abdelmalek Salem , Rebiai Belgacem

We upgrade Howard's divisibility toward Perrin-Riou's Heegner point Main Conjecture to an equality under some mild conditions. We do this by exploiting Wei Zhang's proof of the Kolyvagin conjecture. The main ingredient is an improvement of…

Number Theory · Mathematics 2019-08-27 Murilo Zanarella

We prove that a generalisation of simple Hurwitz numbers due to Johnson, Pandharipande and Tseng satisfy the topological recursion of Eynard and Orantin. This generalises the Bouchard-Marino conjecture and places Hurwitz-Hodge integrals,…

Algebraic Geometry · Mathematics 2019-07-02 Norman Do , Oliver Leigh , Paul Norbury

We provide a proof of the Borwein Conjecture using analytic methods.

Combinatorics · Mathematics 2021-10-01 Chen Wang

It is well known that the following Collatz Conjecture is one of the unsolved problems in mathematics. Collatz Conjecture: For any positive integer $n>1$, the following recursive algorithm will convergent to 1 by a finite number of steps.…

General Mathematics · Mathematics 2022-09-28 Lei Li