Results 11 to 20 of about 813 (211)

Linear Forms in Polylogarithms [PDF]

open access: greenANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, 2020
Let $r, \,m$ be positive integers. Let $x$ be a rational number with $0 \le x <1$. Consider $Φ_s(x,z) =\displaystyle\sum_{k=0}^{\infty}\frac{z^{k+1}}{{(k+x+1)}^s}$ the $s$-th Lerch function with $s=1, 2, \cdots, r$. When $x=0$, this is a polylogarithmic function.
Sinnou David   +2 more
openalex   +5 more sources

Dispersion braiding and band knots in plasmonic arrays with broken symmetries. [PDF]

open access: yesNanophotonics, 2023
Abstract Periodic arrays can support highly nontrivial modal dispersion, stemming from the interplay between localized resonances of the array elements and distributed resonances supported by the lattice. Recently, intentional defects in the periodicity, i.e., broken in situ symmetries, have been attracting significant attention as a powerful degree of
Yin S, Alù A.
europepmc   +2 more sources

GENERALIZED FINITE POLYLOGARITHMS [PDF]

open access: yesGlasgow Mathematical Journal, 2020
AbstractWe introduce a generalization ${\rm{\pounds}}_d^{(\alpha)}(X)$ of the finite polylogarithms ${\rm{\pounds}}_d^{(0)}(X) = {{\rm{\pounds}}_d}(X) = \sum\nolimits_{k = 1}^{p - 1} {X^k}/{k^d}$ , in characteristic p, which depends on a parameter α.
Marina Avitabile, Sandro Mattarei
openaire   +3 more sources

Clean Single-Valued Polylogarithms [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2021
We define a variant of real-analytic polylogarithms that are single-valued and that satisfy ''clean'' functional relations that do not involve any products of lower weight functions. We discuss the basic properties of these functions and, for depths one and two, we present some explicit formulas and results.
Charlton, S. ; https://orcid.org/0000-0002-2815-1885   +2 more
openaire   +3 more sources

HARMONIC POLYLOGARITHMS [PDF]

open access: yesInternational Journal of Modern Physics A, 2000
The harmonic polylogarithms (hpl's) are introduced. They are a generalization of Nielsen's polylogarithms, satisfying a product algebra (the product of two hpl's is in turn a combination of hpl's) and forming a set closed under the transformation of the arguments x=1/z and x=(1-t)/(1+t). The coefficients of their expansions and their Mellin transforms
Remiddi, Ettore   +1 more
openaire   +2 more sources

Tempering the polylogarithm [PDF]

open access: green, 2006
Supported by the DARPA FunBio ...
Charles L. Epstein, Jack Morava
openalex   +3 more sources

Discrete Polylogarithm Functions

open access: yesTatra Mountains Mathematical Publications, 2023
Abstract We investigate a discrete analogue of the polylogarithm function. Difference and summation relations are obtained, as well as its connection to the discrete hypergeometric series.
Cuchta, Tom, Freeman, Dallas
openaire   +1 more source

Cluster Polylogarithms I: Quadrangular Polylogarithms

open access: yes, 2022
We suggest a definition of cluster polylogarithms on an arbitrary cluster variety and classify them in type $A$. We find functional equations for multiple polylogarithms which generalize equations discovered by Abel, Kummer, and Goncharov to an arbitrary weight. As an application, we prove a part of the Goncharov depth conjecture in weight six.
Matveiakin, Andrei, Rudenko, Daniil
openaire   +2 more sources

Elliptic polylogarithms and basic hypergeometric functions [PDF]

open access: diamondThe European Physical Journal C, 2017
Multiple elliptic polylogarithms can be written as (multiple) integrals of products of basic hypergeometric functions. The latter are computable, to arbitrary precision, using a q-difference equation and q-contiguous relations.
Giampiero Passarino
openalex   +3 more sources

Space Charge Region beyond the Abrupt Approximation

open access: yesphysica status solidi (b), Volume 260, Issue 11, November 2023., 2023
An analytical approximation for the potential, electrical field and charge density in a space charge (depletion) region is found. Good agreement is found with the (numerically) exact solution. The problem of the potential, electrical field and charge density in a space charge region is revisited.
Marius Grundmann
wiley   +1 more source

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