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Theta Vectors and Quantum Theta Functions [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2004
In this paper, we clarify the relation between Manin's quantum theta function and Schwarz's theta vector in comparison with the kq representation, which is equivalent to the classical theta function, and the corresponding coordinate space wavefunction ...
Bacry H   +17 more
core   +2 more sources

The effects of iTBS to cerebellar vermis on balance function in frail older people: A protocol for a randomized controlled trial. [PDF]

open access: yesPLoS ONE
BackgroundWith the gradual deepening of the aging of the population, the closely related problem of frailty in older people is becoming increasingly prominent.
Zuoyan Liu   +5 more
doaj   +2 more sources

On Some Expansion Formulas for Products of Jacobi’s Theta Functions

open access: yesMathematics, 2023
In this paper, we establish several expansion formulas for products of the Jacobi theta functions. As applications, we derive some expressions of the powers of (q;q)∞ by using these expansion formulas.
Hong-Cun Zhai, Jian Cao, Sama Arjika
doaj   +1 more source

A domain free of the zeros of the partial theta function

open access: yesМатематичні Студії, 2023
The partial theta function is the sum of the series \medskip\centerline{$\displaystyle\theta (q,x):=\sum\nolimits _{j=0}^{\infty}q^{j(j+1)/2}x^j$,} \medskip\noi where $q$ is a real or complex parameter ($|q|
V. Kostov
doaj   +1 more source

Inverse Numerical Range and Determinantal Quartic Curves

open access: yesMathematics, 2020
A hyperbolic ternary form, according to the Helton–Vinnikov theorem, admits a determinantal representation of a linear symmetric matrix pencil. A kernel vector function of the linear symmetric matrix pencil is a solution to the inverse numerical range ...
Mao-Ting Chien, Hiroshi Nakazato
doaj   +1 more source

Ramanujan’s mock theta functions [PDF]

open access: yesProceedings of the National Academy of Sciences, 2013
In his famous deathbed letter, Ramanujan introduced the notion of a mock theta function , and he offered some alleged examples. Recent work by Zwegers [Zwegers S (2001) Contemp Math 291:268–277 and Zwegers S (2002) PhD thesis (Univ of Utrecht, Utrecht, The Netherlands)] has elucidated the ...
Griffin, Michael, Ono, Ken, Rolen, Larry
openaire   +2 more sources

Massive theta lifts

open access: yesJournal of High Energy Physics, 2023
We use Poincaré series for massive Maass-Jacobi forms to define a “massive theta lift”, and apply it to the examples of the constant function and the modular invariant j-function, with the Siegel-Narain theta function as integration kernel.
Marcus Berg, Daniel Persson
doaj   +1 more source

The explicit form of the switching surface in admissible synthesis problem

open access: yesVisnik Harkivsʹkogo Nacionalʹnogo Universitetu im. V.N. Karazina. Cepiâ Matematika, Prikladna Matematika i Mehanika, 2022
In this article we consider the problem related to positional synthesis and controllability function method and more precisely to admissible maximum principle.
V. I. Korobov, O. S. Vozniak
doaj   +1 more source

Some results concerning localization property of generalized Herz, Herz-type Besov spaces and Herz-type Triebel-Lizorkin spaces

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
In this paper, based on generalized Herz-type function spaces $\dot{K}_{q}^{p}(\theta)$ were introduced by Y. Komori and K. Matsuoka in 2009, we define Herz-type Besov spaces $\dot{K}_{q}^{p}B_{\beta }^{s}(\theta)$ and Herz-type Triebel-Lizorkin spaces $\
A. Djeriou, R. Heraiz
doaj   +1 more source

The reverse Holder inequality for an elementary function

open access: yesМатематичні Студії, 2021
For a positive function $f$ on the interval $[0,1]$, the power mean of order $p\in\mathbb R$ is defined by \smallskip\centerline{$\displaystyle \|\, f\,\|_p=\left(\int_0^1 f^p(x)\,dx\right)^{1/p}\quad(p\ne0), \qquad \|\, f\,\|_0=\exp\left(\int_0^1\ln ...
A.O. Korenovskii
doaj   +1 more source

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