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In the present paper, we construct an algorithm for the evaluation of real Riemann zeta function $\zeta(s)$ for all real $s$, $s>1$, in polynomial time and linear space on Turing machines in Ko-Friedman model. The algorithms is based on a…

Computational Complexity · Computer Science 2014-11-18 Sergey V. Yakhontov

Sigmoid functions play an important role in many areas of applied mathematics, including machine learning, population dynamics and probability. We place the study of sigmoid functions in the context of the derivative sub-group of the group…

Classical Analysis and ODEs · Mathematics 2017-02-17 Paul Barry

We introduce Row Impartial Terminus (RIT), an impartial combinatorial game played on integer partitions. We show that any position in RIT can be uniquely decomposed into a core and a remnant. Our central result is that the Conway pair of…

Combinatorics · Mathematics 2025-09-04 Eric Gottlieb , Dawood Khatana , Matjaž Krnc , Peter Muršič , Ismael Qureshi

The present paper introduces a novel notion of `(effective) computability', called viability, of strategies in game semantics in an intrinsic (i.e., without recourse to the standard Church-Turing computability), non-inductive and…

Logic in Computer Science · Computer Science 2018-06-27 Norihiro Yamada

Riemann surfaces which are set by algebraic, algebroid and inverse functions are considered. A method for describing these Riemann surfaces by graphs is proposed. Each such Riemann surface is assigned to a special type of graph - profile.…

Complex Variables · Mathematics 2020-10-21 Semen Bronza , Valentina Tairova

We interpret a formula for meromorphic functions on foliations by Riemann surfaces as an analogue to the product formula of valuations in algebraic number theory.

Number Theory · Mathematics 2007-05-23 Fabian Kopei

For a class of integral operators with kernels metric functions on manifold we find some necessary and sufficient conditions to have finite rank. The problem we pose has a stochastic nature and boils down to the following alternative…

Metric Geometry · Mathematics 2009-04-24 Nikolay H. Balov

In this note we give a proof-by-formula of certain important embedding inequalities on dyadic tree. This is done with the help of Bellman function. We also consider the case of a bi-tree, where a different approach is explained.

Classical Analysis and ODEs · Mathematics 2018-12-20 Nicola Arcozzi , Irina Holmes , Pavel Mozolyako , Alexander Volberg

Rational conformal field theories produce a tower of finite-dimensional representations of surface mapping class groups, acting on the conformal blocks of the theory. We review this formalism. We show that many recent mathematical…

Quantum Algebra · Mathematics 2007-10-09 T. Gannon

The log-rank conjecture is a longstanding open problem with multiple equivalent formulations in complexity theory and mathematics. In its linear-algebraic form, it asserts that the rank and partitioning number of a Boolean matrix are…

Computational Complexity · Computer Science 2026-03-02 Lianna Hambardzumyan , Shachar Lovett , Morgan Shirley

We provide game-theoretic proofs of some well-known existence theorems of Friedberg numberings for the class of all partial computable functions, including (1) the existence of two incomparable Friedberg numberings; (2) the existence of a…

Logic · Mathematics 2020-03-23 Takuma Imamura

A new concept of meromorphic $\Sigma$-factorization, for H\"{o}lder continuous functions defined on a contour $\Gamma$ that is the pullback of $\dot{\mathbb{R}}$ (or the unit circle) in a Riemann surface $\Sigma$ of genus 1, is introduced…

Complex Variables · Mathematics 2011-08-03 M. C. Câmara , M. T. Malheiro

In the theory of algebraic function fields and their applications to the information theory, the Riemann-Roch theorem plays a fundamental role. But its use, delicate in general, is efficient and practical for applications especially in the…

Algebraic Geometry · Mathematics 2026-02-17 S Ballet , M Koutchoukali

There are many notions of rank in multilinear algebra: tensor rank, partition rank, slice rank, and strength (or Schmidt rank) are a few examples. Typically the rank $\le r$ locus is not Zariski closed, and understanding the closure (the…

Algebraic Geometry · Mathematics 2024-02-21 Arthur Bik , Jan Draisma , Rob Eggermont , Andrew Snowden

We produce new combinatorial methods for approaching the tropical maximal rank conjecture, including inductive procedures for deducing new cases of the conjecture on graphs of increasing genus from any given case. Using explicit…

Algebraic Geometry · Mathematics 2025-01-07 David Jensen , Sam Payne

We define a general framework of partition games for formulating two-player pebble games over finite structures. We show that one particular such game, which we call the invertible-map game, yields a family of polynomial-time approximations…

Logic in Computer Science · Computer Science 2015-03-20 Anuj Dawar , Bjarki Holm

This is the third and final installment in our series of papers applying the method of Atkin and Swinnerton-Dyer to deduce formulas for rank differences. The study of rank differences was initiated by Atkin and Swinnerton-Dyer in their…

Number Theory · Mathematics 2021-02-03 Jeremy Lovejoy , Robert Osburn

It has been shown that a functional interpretation of proofs in mathematical analysis can be given by the product of selection functions, a mode of recursion that has an intuitive reading in terms of the computation of optimal strategies in…

Logic · Mathematics 2012-04-25 Paulo Oliva , Thomas Powell

We determine a strong form of the decomposition theorem for proper toric maps over finite fields.

Algebraic Geometry · Mathematics 2015-06-12 Mark Andrea de Cataldo

We settle a conjecture of B\'ona regarding the log-concavity of a certain statistic on parking functions by utilizing recent log-concavity results on matroids. This result allows us to also prove that connected, labeled graphs graded by…

Combinatorics · Mathematics 2024-12-30 Joseph Pappe