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We study the class on non-parametric deformed statistical models where the deformed exponential has linear growth at infinity and is sub-exponential at zero. This class generalizes the class introduced by N.J.~Newton. We discuss the…

Statistics Theory · Mathematics 2018-07-02 Luigi Montrucchio , Giovanni Pistone

We introduce Macdonald characters and use algebraic properties of Macdonald polynomials to study them. As a result, we produce several formulas for Macdonald characters, which are generalizations of those obtained by Gorin and Panova in…

Representation Theory · Mathematics 2018-01-03 Cesar Cuenca

We define extensions of the $L^2$-analytic invariants of closed manifolds, called delocalized $L^2$-invariants. These delocalized invariants are constructed in terms of a nontrivial conjugacy class of the fundamental group. We show that in…

dg-ga · Mathematics 2008-02-03 John Lott

The main observation of this note is that the Lebesgue measure $\mu$ in the Tur\'an-Nazarov inequality for exponential polynomials can be replaced with a certain geometric invariant $\omega \ge \mu$, which can be effectively estimated in…

Functional Analysis · Mathematics 2013-08-08 Omer Friedland , Yosef Yomdin

Lochs' theorem and its generalizations are conversion theorems that relate the number of digits determined in one expansion of a real number as a function of the number of digits given in some other expansion. In its original version,…

Number Theory · Mathematics 2022-02-09 Valérie Berthé , Eda Cesaratto , Pablo Rotondo , Martín D. Safe

For two hermitian matrices $A$ and $B$, Golden-Thompson inequality \cite{golden1965lower, thompson1965inequality} states that $$ \mathrm{tr}\left[ \exp{(A+B)} \right] \leq \mathrm{tr}\left[ \exp{(A)}\exp{(B)} \right]. $$ We elaborate here…

Functional Analysis · Mathematics 2020-05-07 Saket Choudhary

We propose a quadrature-based formula for computing the exponential function of matrices with a non-oscillatory integral on an infinite interval and an oscillatory integral on a finite interval. In the literature, existing quadrature-based…

Numerical Analysis · Mathematics 2024-12-02 Masato Suzuki , Ken'ichiro Tanaka

Generators of the super-Poincar\'e algebra in the non-(anti)commutative superspace are represented using appropriate higher-derivative operators defined in this quantum superspace. Also discussed are the analogous representations of the…

High Energy Physics - Theory · Physics 2009-01-07 Rabin Banerjee , Choonkyu Lee , Sanjay Siwach

We introduce a notion of a length function exponentially distorted on a (compactly generated) subgroup of a locally compact group. We prove that for a connected linear complex Lie group there is a maximum equivalence class of length…

Functional Analysis · Mathematics 2024-10-03 Oleg Aristov

In this paper, we found new q-binomial formula for Q-commutative operators. Expansion coefficients in this formula are given by q-binomial coefficients with two bases (q,Q), determined by Q-commutative q-Pascal triangle. Our formula…

Quantum Algebra · Mathematics 2012-02-13 Sengul Nalci , Oktay Pashaev

In this paper we study twisted traces of products of intertwining operators for quantum affine algebras. They are interesting special functions, depending on two weights lambda, mu, three scalar parameters q, omega, k, and spectral…

Quantum Algebra · Mathematics 2007-05-23 Pavel Etingof , Olivier Schiffmann , Alexander Varchenko

In this article, we establish weighted strong and weak type inequalities for non-commutative square functions that naturally arise in the analysis of differences between ball averages and martingale sequences within the framework of group…

Functional Analysis · Mathematics 2026-01-05 Panchugopal Bikram , Diptesh Saha

For positive $q\neq1$, the $q$-exchangeability of an infinite random word is introduced as quasi-invariance under permutations of letters, with a special cocycle which accounts for inversions in the word. This framework allows us to extend…

Probability · Mathematics 2010-11-11 Alexander Gnedin , Grigori Olshanski

The Gaussian matrix model is known to deform to the $q,t$-matrix model. We consider further deformation to the elliptic $q,t$ matrix model by properly deforming the Gaussian density as well as the Vandermonde factor. Properties of an…

High Energy Physics - Theory · Physics 2021-03-10 A. Mironov , A. Morozov

In this work we study nonuniform exponential dichotomies and existence of pullback and forward attractors for evolution processes associated to nonautonomous differential equations. We define a new concept of nonuniform exponential…

Dynamical Systems · Mathematics 2021-12-14 Jose Antonio Langa , Rafael Obaya , Alexandre N. Oliveira-Sousa

In this work a general approach to compute a compressed representation of the exponential $\exp(h)$ of a high-dimensional function $h$ is presented. Such exponential functions play an important role in several problems in Uncertainty…

Numerical Analysis · Mathematics 2023-02-22 Martin Eigel , Nando Farchmin , Sebastian Heidenreich , Philipp Trunschke

We define a q-analog of the modified Bessel and Bessel-Macdonald functions. As for the q-Bessel functions of Jackson there is a couple of functions of the both kind. They are arisen in the Harmonic analysis on quantum symmetric spaces…

q-alg · Mathematics 2008-02-03 M. A. Olshanetsky , V. -B. K. Rogov

This paper establishes a converse comparison theorem for real-valued decoupled forward backward stochastic differential equations with jumps.

Probability · Mathematics 2011-05-25 Xavier De Scheemaekere

q-oscillators are associated to the simplest non-commutative example of Hopf algebra and may be considered to be the basic building blocks for the symmetry algebras of completely integrable theories. They may also be interpreted as a…

Quantum Physics · Physics 2008-11-26 V. I. Man'ko , R. Vilela Mendes

This paper is a sequel to our previous paper arXiv:1105.1554, where we defined two types of intermediate Diophantine exponents, connected them to Schmidt exponents and split Dyson's transference inequality into a chain of inequalities for…

Number Theory · Mathematics 2011-05-31 Oleg N. German