Results 11 to 20 of about 10,632,527 (346)

Maximal theta functions universal optimality of the hexagonal lattice for Madelung-like lattice energies [PDF]

open access: yesJournal d'Analyse Mathematique, 2020
We present two families of lattice theta functions accompanying the family of lattice theta functions studied by Montgomery in [H. Montgomery, Minimal theta functions . Glasgow Mathematical Journal, 30 (1988), 75–85].
Laurent B'etermin, Markus Faulhuber
semanticscholar   +1 more source

Weakly θ-I-Closed Sets and Weakly θ-I-continuous functions with respect to an Ideal Topological Spaces

open access: yesRatio Mathematica, 2023
In this paper, we introduce \breve{\theta}-\mathcal{I}-closed sets, \breve{\theta}-\mathcal{I}-closed sets, \breve{\theta}-\mathcal{I}-continuous functions and \breve{\theta}-\mathcal{I}-continuous functions and investigate their properties and its ...
M Vijayasankari, G Ramkumar
doaj   +1 more source

New double-sum expansions for certain Mock theta functions

open access: yesAIMS Mathematics, 2022
The study of expansions of certain mock theta functions in special functions theory has a long and quite significant history. Motivated by recent correlations between q-series and mock theta functions, we establish a new q-series transformation formula ...
Qiuxia Hu   +3 more
doaj   +1 more source

A Neural Model of Intrinsic and Extrinsic Hippocampal Theta Rhythms: Anatomy, Neurophysiology, and Function

open access: yesFrontiers in Systems Neuroscience, 2021
This article describes a neural model of the anatomy, neurophysiology, and functions of intrinsic and extrinsic theta rhythms in the brains of multiple species.
Stephen Grossberg
doaj   +1 more source

Modular forms of half-integral weight on Γ0(4) with few nonvanishing coefficients modulo ℓ

open access: yesOpen Mathematics, 2022
Let kk be a nonnegative integer. Let KK be a number field and OK{{\mathcal{O}}}_{K} be the ring of integers of KK. Let ℓ≥5\ell \ge 5 be a prime and vv be a prime ideal of OK{{\mathcal{O}}}_{K} over ℓ\ell . Let ff be a modular form of weight k+12k+\frac{1}
Choi Dohoon, Lee Youngmin
doaj   +1 more source

A framework for modular properties of false theta functions [PDF]

open access: yesResearch in the Mathematical Sciences, 2019
False theta functions closely resemble ordinary theta functions; however, they do not have the modular transformation properties that theta functions have.
K. Bringmann, Caner Nazaroglu
semanticscholar   +1 more source

Computing Theta Functions with Julia [PDF]

open access: yesThe Journal of Software for Algebra and Geometry, 2019
We present a new package Theta.jl for computing with the Riemann theta function. It is implemented in Julia and offers accurate numerical evaluation of theta functions with characteristics and their derivatives of arbitrary order.
Daniele Agostini, Lynn Chua
semanticscholar   +1 more source

Theta vectors and quantum theta functions [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2005
LaTeX 21 pages, give more explicit explanations for notions given in the ...
Lee, Chang-Yeong, Kim, Hoil
openaire   +2 more sources

Elliptic Solutions of Dynamical Lucas Sequences

open access: yesEntropy, 2021
We study two types of dynamical extensions of Lucas sequences and give elliptic solutions for them. The first type concerns a level-dependent (or discrete time-dependent) version involving commuting variables. We show that a nice solution for this system
Michael J. Schlosser, Meesue Yoo
doaj   +1 more source

EESTIMATES OF BEST APPROXIMATIONS OF FUNCTIONS WITH LOGARITHMIC SMOOTHNESS IN THE LORENTZ SPACE WITH ANISOTROPIC NORM

open access: yesUral Mathematical Journal, 2020
In this paper, we consider the anisotropic Lorentz space \(L_{\bar{p}, \bar\theta}^{*}(\mathbb{I}^{m})\) of periodic functions of \(m\) variables. The Besov space \(B_{\bar{p}, \bar\theta}^{(0, \alpha, \tau)}\) of functions with logarithmic smoothness is
Gabdolla Akishev
doaj   +1 more source

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