Results 11 to 20 of about 149,354 (217)

Approaches to Exceptional Points in the Framework of Non-Hermitian Random Matrices [PDF]

Entropy
We explore how easy it is to enforce the advent of exceptional points starting from random matrices of non-Hermitian nature. We use the Petermann factor, whose mathematical version is called “overlap”, for guidance, as well as simple pseudo-spectral ...
Henri Benisty
doaj   +2 more sources

On the best possible description of an exceptional set in asymptotic estimates for Laplace–Stieltjes integrals [PDF]

Математичні Студії, 2011
For the Laplace–Stieltjes integrals new description of the exceptional set in asymptotic upper estimates in terms of the maximum of the integrand function is obtained.
O. B. Skaskiv, D. Yu. Zikrach
doaj  

Exploring exceptional Drinfeld geometries

Journal of High Energy Physics, 2020
We explore geometries that give rise to a novel algebraic structure, the Exceptional Drinfeld Algebra, which has recently been proposed as an approach to study generalised U-dualities, similar to the non-Abelian and Poisson-Lie generalisations of T ...
Chris D. A. Blair, Daniel C. Thompson, Sofia Zhidkova   +2 more
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Erdős-Macintyre type theorem’s for multiple Dirichlet series: exceptional sets and open problems

Математичні Студії, 2023
In the paper, we formulate some open problems related to the best description of the values of the exceptional sets in Wiman's inequality for entire functions and in the Erd\H{o}s-Macintyre type theorems for entire multiple Dirichlet series.
A. I. Bandura, T. M. Salo, O. B. Skaskiv
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Exceptional in so Many Ways—Discovering Descriptors That Display Exceptional Behavior on Contrasting Scenarios

IEEE Access, 2020
The current state of the art in supervised descriptive pattern mining is very good in automatically finding subsets of the dataset at hand that are exceptional in some sense.
Jose Maria Luna, Mykola Pechenizkiy, Wouter Duivesteijn, Sebastian Ventura   +3 more
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The classical double copy for M-theory from a Kerr-Schild ansatz for exceptional field theory

Journal of High Energy Physics, 2021
We construct the classical double copy formalism for M-theory. This extends the current state of the art by including the three form potential of eleven dimensional supergravity along with the metric.
David S. Berman, Kwangeon Kim, Kanghoon Lee   +2 more
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On the New Description of Exceptional Sets in Asymptotic Estimates for the Entire Functions and the Laplace–Stieltjes Integrals

Axioms
We obtain a new extended description of the exceptional set in the asymptotic Borel-type relation in terms of the maximum of the integrand function for the Laplace–Stieltjes integrals.
Oleh Skaskiv, Andriy Bandura, Tetyana Salo, Dmytro Zikrach   +3 more
doaj   +1 more source

Towards a complete Logical Phonology model of intrasegmental changes

Glossa, 2021
All changes to the internal structure of phonological segments arise from combinations of rules based on two set-theoretic operations: feature deletion by set subtraction and feature insertion by unification.
Charles Reiss
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Analog of the Wiman inequality for Taylor-Dirichlet type series

Математичні Студії
There are presented sufficient conditions for the Taylor-Dirichlet series  of the form $$ F(x)=\sum_{n=0}^{+\infty}a_ne^{x\lambda_n+\tau(x)\beta_n},  $$ and  $\lambda=(\lambda_n)$, $\beta=(\beta_n)$ be positive sequences, $\tau\colon\mathbb{R}_+\to ...
A. O. Kuryliak, O. B. Skaskiv, O. M. Trusevych   +2 more
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Weak ergodicity breaking in non-Hermitian many-body systems

SciPost Physics, 2023
The recent discovery of persistent revivals in the Rydberg-atom quantum simulator has revealed a weakly ergodicity-breaking mechanism dubbed quantum many-body scars, which are a set of nonthermal states embedded in otherwise thermal spectra.
Qianqian Chen, Shuai A. Chen, Zheng Zhu
doaj   +1 more source