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Neuronal responses are conspicuously variable. We focus on one particular aspect of that variability: the precision of action potential timing. We show that for common models of noisy spike generation, elementary considerations imply that…

Disordered Systems and Neural Networks · Physics 2009-10-31 Guillermo A. Cecchi , Mariano Sigman , Jose-Manuel Alonso , Luis Martinez , Dante R. Chialvo , Marcelo O. Magnasco

In this paper, we would like to propose a fundamental question about a higher dimensional analogue of Dirichlet's unit theorem. We also give a partial answer to the question as an application of the arithmetic Hodge index theorem.

Algebraic Geometry · Mathematics 2015-01-14 Atsushi Moriwaki

This article contains the proof of a theorem on orthogonal-Pin duality that was cited without proof in a previous article in this journal.

Mathematical Physics · Physics 2023-07-11 K. Neergård

We obtain simple proofs of certain inequalites for bivariate means.

Classical Analysis and ODEs · Mathematics 2011-05-04 Jozsef Sandor

We use derived localization of the bar and nerve constructions to provide simple proofs of a number of results in algebraic topology. This includes a recent generalization of Adams' cobar-construction to the non-simply connected case, and a…

Algebraic Topology · Mathematics 2021-09-30 Joe Chuang , Julian Holstein , Andrey Lazarev

We present the proof of the equivalence theorem in quantum field theory which is based on a formulation of this problem in the field-antifield formalism. As an example, we consider a model in which a different choices of natural finite…

High Energy Physics - Theory · Physics 2009-10-31 I. V. Tyutin

We present a simple proof for the universality of invariant and equivariant tensorized graph neural networks. Our approach considers a restricted intermediate hypothetical model named Graph Homomorphism Model to reach the universality…

Machine Learning · Computer Science 2019-10-10 Takanori Maehara , Hoang NT

An introduction to circle valued Morse theory and Novikov homology, from an algebraic point of view.

Algebraic Topology · Mathematics 2007-05-23 Andrew Ranicki

In this note we give a detailed proof of a theorem of Aubin.

Differential Geometry · Mathematics 2013-03-15 Farid Madani

We prove that existence of a k-rational point can be detected by the stable A^1-homotopy category of S^1-spectra, or even a "rationalized" variant of this category.

Algebraic Geometry · Mathematics 2011-01-06 Aravind Asok , Christian Haesemeyer

In this note, we combine ideas of several previous proofs in order to obtain a quite short proof of Gr\"otzsch theorem.

Combinatorics · Mathematics 2013-12-02 Zdeněk Dvořák

We prove twisted homological stability with polynomial coefficients for automorphism groups of free nilpotent groups of any given class. These groups interpolate between two extremes for which homological stability was known before, the…

Group Theory · Mathematics 2014-10-15 Markus Szymik

There is proved an existence theorem, in the Newtonian theory, for static, self-gravitating bodies composed of elastic material. The theorem covers the case where these bodies are small, but allows them to have arbitrary shape.

General Relativity and Quantum Cosmology · Physics 2009-11-07 Robert Beig , Bernd G. Schmidt

We derive extensions of the monomialization theorems for morphisms of varieties in our earlier work. In this note we show that a local monomialization can be found which satisfies stronger local conditions. Some comments are made about how…

Algebraic Geometry · Mathematics 2016-12-05 Steven Dale Cutkosky

We prove an improved form of an expectation of Polya and discuss several related questions

Number Theory · Mathematics 2025-12-02 Umberto Zannier

We introduce methods that allow to derive continuous-time versions of various discrete-time ergodic theorems. We then illustrate these methods by giving simple proofs and refinements of some known results as well as establishing new results…

Dynamical Systems · Mathematics 2011-09-09 V. Bergelson , A. Leibman , C. G. Moreira

We prove that if two knots are concordant, their involutive knot Floer complexes satisfy a certain type of stable equivalence.

Geometric Topology · Mathematics 2017-08-23 Kristen Hendricks , Jennifer Hom

We prove a uniformization theorem in complex algebraic geometry.

Algebraic Geometry · Mathematics 2010-08-11 Robert Treger

We give a direct proof that middle mapping spaces in coherent nerves of Kan enriched categories have the same homotopy type as the original mapping spaces.

Algebraic Topology · Mathematics 2020-11-19 Fabian Hebestreit , Achim Krause

The KAM iterative scheme turns out to be effective in many problems arising in perturbation theory. I propose an abstract version of the KAM theorem to gather these different results.

Dynamical Systems · Mathematics 2013-08-22 Mauricio Garay