Results 41 to 50 of about 259 (61)

Construction of a set of p-adic distributions

open access: yes, 2017
In this paper adapting to $p$-adic case some methods of real valued Gibbs measures on Cayley trees we construct several $p$-adic distributions on the set $\mathbb{Z}_p$ of $p$-adic integers.
Rozikov, U. A., Tugyonov, Z. T.
core   +1 more source

Fundamental solutions of pseudo-differential operators over p-adic fields [PDF]

open access: yes, 2003
We show the existence of fundamental solutions for p-adic pseudo-differential operators with polynomial symbols.Comment: To appear in Rend. Sem. Mat.
Zuniga-Galindo, W. A.
core   +1 more source

On the equation of the $p$-adic open string for the scalar tachyon field

open access: yes, 2005
We study the structure of solutions of the one-dimensional non-linear pseudodifferential equation describing the dynamics of the $p$-adic open string for the scalar tachyon field $p^{\frac12\partial^2_t}\Phi=\Phi^p$.
Vladimirov, V. S.
core   +1 more source

Modeling and Stability Analysis of Time‐Dependent Free‐Fall Motion in Random Environments

open access: yesDiscrete Dynamics in Nature and Society, Volume 2025, Issue 1, 2025.
This paper examines the stability of a fractional‐order model that describes the free‐fall motion of a football in changing environmental conditions. Traditional models often overlook memory effects and nonlocal influences like air resistance, humidity, and turbulence.
Alireza Hatami   +4 more
wiley   +1 more source

Spectral properties of compact normal quaternionic operators

open access: yes, 2014
General, especially spectral, features of compact normal operators in quaternionic Hilbert spaces are studied and some results are established which generalize well-known properties of compact normal operators in complex Hilbert spaces.
Ghiloni, Riccardo   +2 more
core   +1 more source

On a fractional Cauchy problem with singular initial data

open access: yesNonautonomous Dynamical Systems
This article is dedicated to establishing the existence and uniqueness of solutions for the following problem: Dαx(t)=F(t,x(t))x(0)=x0,\left\{\begin{array}{l}{D}^{\alpha }x\left(t)=F\left(t,x\left(t))\hspace{1.0em}\\ x\left(0)={x}_{0},\hspace{1.0em}\end ...
Benmerrous Abdelmjid   +4 more
doaj   +1 more source

The novel quadratic phase Fourier S-transform and associated uncertainty principles in the quaternion setting

open access: yesDemonstratio Mathematica
In this article, we propose a novel integral transform coined as quaternion quadratic phase S-transform (Q-QPST), which is an extension of the quadratic phase S-transform and study the uncertainty principles associated with the Q-QPST.
Gargouri Ameni
doaj   +1 more source

Grobman-Hartman theorems for diffeomorphisms of Banach spaces over valued fields [PDF]

open access: yes, 2012
Consider a local diffeomorphism f of an ultrametric Banach space over an ultrametric field, around a hyperbolic fixed point x. We show that, locally, the system is topologically conjugate to the linearized system.
Helge Glockner
semanticscholar   +1 more source

Phase transitions for $P$-adic Potts model on the Cayley tree of order three

open access: yes, 2012
In the present paper, we study a phase transition problem for the $q$-state $p$-adic Potts model over the Cayley tree of order three. We consider a more general notion of $p$-adic Gibbs measure which depends on parameter $\rho\in\bq_p$. Such a measure is
Albeverio S   +22 more
core   +1 more source

Adelic versions of the Weierstrass approximation theorem

open access: yes, 2017
Let $\underline{E}=\prod_{p\in\mathbb{P}}E_p$ be a compact subset of $\widehat{\mathbb{Z}}=\prod_{p\in\mathbb{P}}\mathbb{Z}_p$ and denote by $\mathcal C(\underline{E},\widehat{\mathbb{Z}})$ the ring of continuous functions from $\underline{E}$ into ...
Amice   +14 more
core   +3 more sources

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