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Related papers: On common energies and sumsets

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We continue to study the relationship between the size of the sum of a set and the common energy of its subsets. We find a rather sharp subexponential dependence between the doubling constant of a set $A$ and the minimal common energy taken…

Combinatorics · Mathematics 2025-03-03 Ilya D. Shkredov

We show that if A is a set having small subtractive doubling in an abelian group, that is |A-A|< K|A|, then there is a polynomially large subset B of A-A so that the additive energy of B is large than (1/K)^{1 - \epsilon) where epsilon is a…

Combinatorics · Mathematics 2008-03-03 Nets Hawk Katz , Paul Koester

We obtain a non--trivial upper bound for the multiplicative energy of any sufficiently large subset of a subvariety of a finite algebraic group. We also find some applications of our results to growth of conjugates classes, estimates of…

Combinatorics · Mathematics 2021-01-26 Ilya D. Shkredov

In the paper we prove that any sumset or difference set has large E_3 energy. Also, we give a full description of families of sets having critical relations between some kind of energies such as E_k, T_k and Gowers norms. In particular, we…

Combinatorics · Mathematics 2014-05-14 Ilya D. Shkredov

We prove an irreducibility criterion for polynomials with power series coefficients generalizing previous known results concerning quasi-ordinary polynomials.

Complex Variables · Mathematics 2016-05-19 Guillaume Rond , Bernd Schober

In the paper we develop the method of higher energies. New upper bounds for the additive energies of convex sets, sets A with small |AA| and |A(A+1)| are obtained. We prove new structural results, including higher sumsets, and develop the…

Combinatorics · Mathematics 2013-01-01 Ilya D. Shkredov

Given a subset of real numbers $A$ with small product $AA$ we obtain a new upper bound for the additive energy of $A$. The proof uses a natural observation that level sets of convolutions of the characteristic function of $A$ have small…

Combinatorics · Mathematics 2019-11-28 Konstantin I. Olmezov , Aliaksei S. Semchankau , Ilya D. Shkredov

Following the sum-product paradigm, we prove that for a set $B$ with polynomial growth, the product set $B.B$ cannot contain large subsets with size of order $|B|^2$ with small doubling. It follows that the additive energy of $B.B$ is…

Number Theory · Mathematics 2015-02-13 Dmitry Zhelezov

We prove an elementary additive combinatorics inequality, which says that if $A$ is a subset of an Abelian group, which has, in some strong sense, large doubling, then the difference set A-A has a large subset, which has small doubling.

Combinatorics · Mathematics 2011-07-26 Misha Rudnev

Given positive real numbers, we prove two inequalities involving their potential energy and their power sums. We also prove an inequality involving the energy and the discriminant and apply it to deduce a result on totally positive…

Number Theory · Mathematics 2022-02-11 Giacomo Cherubini , Pavlo Yatsyna

We obtain an upper bound for the multiplicative energy of the spectrum of an arbitrary set from $\mathbb{F}_p$, which is the best possible up to the results on exponential sums over subgroups.

Number Theory · Mathematics 2018-05-29 Ilya D. Shkredov

We obtain a series of lower bounds for the product set of combinatorial cubes, as well as some non--trivial upper estimates for the multiplicative energy of such sets.

Combinatorics · Mathematics 2020-08-04 Ilya D. Shkredov

We obtain a new upper bound for binary sums with multiplicative characters over variables belong to some sets, having small additive doubling.

Number Theory · Mathematics 2017-12-29 Aleksei S. Volostnov

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

We obtain new partial results supporting the spectral set conjecture in dimension 1.

Classical Analysis and ODEs · Mathematics 2007-05-23 I. Laba

In this article, we continue our recent investigations on bilinear sums and additive energies with modular square roots. Here we improve our recent results for the case when the ranges of variables are large. We use these results to make…

Number Theory · Mathematics 2026-03-24 Stephan Baier

In this paper we prove that every set $A\subset\mathbb{Z}$ satisfying the inequality $\sum_{x}\min(1_A*1_A(x),t)\le(2+\delta)t|A|$ for $t$ and $\delta$ in suitable ranges, then $A$ must be very close to an arithmetic progression. We use…

Combinatorics · Mathematics 2015-06-02 Przemysław Mazur

Multiple pendulums are investigated numerically and analytically to clarify the nonuniformity of average kinetic energies of particles. The nonuniformity is attributed to the system having constraints and it is consistent with the…

Chaotic Dynamics · Physics 2023-07-19 Tetsuro Konishi , Tatsuo Yanagita

The aim of this paper is twofold. The first is to give a quantitative version of Schmidt's subspace theorem for arbitrary families of higher degree polynomials. The second is to give a generalization of the subspace theorem for arbitrary…

Number Theory · Mathematics 2023-08-01 Si Duc Quang

In this article, we give two different sufficient conditions for the irreducibility of a polynomial of more than one variable, over the field of complex numbers, that can be written as a sum of two polynomials which depend on mutually…

Commutative Algebra · Mathematics 2021-07-08 Vikramjeet Singh Chandel , Uma Dayal
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