activity
20162026
most citedProbabilistic Laws on Infinite Groups

3 citations · 6 across the 14 of their papers we have counts for

collaborators

15 papers

math.NT2026

Galois groups of random polynomials of large degree

Guy Blachar, Emmanuel Breuillard, Gady Kozma

We study random polynomials of the form , where are independent, uniformly bounded integer-valued random variables, and $ω_1…

math.CO2026

Edge-regular graphs with non-negative curvature have polynomial growth

Guy Blachar, Hervé Pajot, Justin Salez

A long-standing conjecture in the emerging discrete Bakry-Émery theory asserts that bounded-degree graphs satisfying have polynomial growth. In the present…

math.GR2026

Small entropy doubling for random walks and polynomial growth

Guy Blachar

Gromov's theorem states that a finitely generated group has polynomial growth if and only if it is virtually nilpotent. A key ingredient in its proof is the small doubling property…

math.PR2025

Phase transition for recurrence of stationary random walks on lamplighter groups

Itai Benjamini, Guy Blachar, Ariel Yadin

We introduce and study a class of random walks on lamplighter groups , where is a nontrivial finitely generated group and is an infinite finitely generated group, c…

math.GR2025

The speed of random walks on semigroups

Guy Blachar, Be'eri Greenfeld

We construct, for each real number , a random walk on a finitely generated semigroup whose speed exponent is . We further show that the speed function of a random…

math.GR2025

Mixability of finite groups

Gideon Amir, Guy Blachar, Subhajit Ghosh +1

Say that a finite group is mixable if a product of random elements, each chosen independently from two options, can distribute uniformly on . We present conditions and obstr…

math.GR2024

Profinite rigidity of lamplighter groups

Guy Blachar

We show that the lamplighter groups , where is prime and is a positive integer, are profinitely rigid.

math.RA2024

Rank-stability of polynomial equations

Tomer Bauer, Guy Blachar, Be'eri Greenfeld

Extending the thoroughly studied theory of group stability, we study Ulam stability type problems for associative and Lie algebras; namely, we investigate obstacles to rank-approxi…

math.CO2023

Lipschitz harmonic functions on vertex-transitive graphs

Gideon Amir, Guy Blachar, Maria Gerasimova +1

We prove that every locally finite vertex-transitive graph admits a non-constant Lipschitz harmonic function.

math.RA2023

Semiassociative algebras over a field

Guy Blachar, Darrell Haile, Eliyahu Matzri +2

An associative central simple algebra is a form of matrices, because a maximal étale subalgebra acts on the algebra faithfully by left and right multiplication. In an attempt to ex…

math.GR2023★ 3 cited

Probabilistic Laws on Infinite Groups

Gideon Amir, Guy Blachar, Maria Gerasimova +1

We study the probability that certain laws are satisfied on infinite groups, focusing on elements sampled by random walks. For several group laws, including the metabelian one, we…

math.PR2022

A Law of Iterated Logarithm on Lamplighter Diagonal Products

Gideon Amir, Guy Blachar

We prove a Law of Iterated Logarithm for random walks on a family of diagonal products constructed by Brieussel and Zheng (2021). This provides a wide variety of new examples of La…

math.RA2017★ 1 cited

Modules and Lie Semialgebras over Semirings with a Negation Map

Guy Blachar

In this article, we present the basic definitions of modules and Lie semialgebras over semirings with a negation map. Our main example of a semiring with a negation map is ELT alge…

math.RA2017

ELT Linear Algebra II

Guy Blachar, Erez Sheiner

This paper is a continuation of [arXiv:1603.02204]. Exploded layered tropical (ELT) algebra is an extension of tropical algebra with a structure of layers. These layers allow us to…

math.RA2016★ 2 cited

ELT Linear Algebra

Guy Blachar, Erez Sheiner

Exploded layered tropical (ELT) algebra is an extension of tropical algebra with a structure of layers. These layers allow us to use classical algebraic results in order to easily…