Results 11 to 20 of about 1,030,576 (315)

Quantum uniqueness [PDF]

open access: yesFoundations of Physics, 2010
In the classical world one can construct two identical systems which have identical behavior and give identical measurement results. We show this to be impossible in the quantum domain.
A Aspect   +18 more
core   +4 more sources

Solvability of an initial-boundary value problem for a nonlinear pseudoparabolic equation with degeneration

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2022
This article is devoted to the solvability of degenerate nonlinear equations of pseudoparabolic type. Such problems appear naturally in physical and biological models. The article aims to study the solvability in the classes of regular solutions of (all
S.E. Aitzhanov   +2 more
doaj   +1 more source

On the solutions of some fractional q-differential equations with the Riemann-Liouville fractional q-derivative

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2021
This paper is devoted to explicit and numerical solutions to linear fractional q -difference equations and the Cauchy type problem associated with the Riemann-Liouville fractional q -derivative in q -calculus.
S. Shaimardan, N.S. Tokmagambetov
doaj   +1 more source

Existence of solutions for Caputo fractional iterative equations under several boundary value conditions

open access: yesAIMS Mathematics, 2023
In this paper, we investigate the existence and uniqueness of solutions for nonlinear quadratic iterative equations in the sense of the Caputo fractional derivative with different boundary conditions.
Cuiying Li , Rui Wu, Ranzhuo Ma
doaj   +1 more source

Lakshmikantham Monotone Iterative Principle for Hybrid Atangana-Baleanu-Caputo Fractional Differential Equations

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2023
In this paper, we study the following fractional differential equation involving the Atangana-Baleanu-Caputo fractional derivative: {ABCaDτθ[x(ϑ)−F(ϑ,x(ϑ))]=G(ϑ,x(ϑ)),    ϑ∈J:=[a,b],x(a)=φa∈ℝ.$$\left\{ {\matrix{ {AB{C_a}D_\tau ^\theta [x(\vartheta ...
Benkhettou Nadia   +4 more
doaj   +1 more source

Uniqueness for a Cauchy problem for the generalized Schrödinger equation

open access: yesAIMS Mathematics, 2023
In this work, we consider a Cauchy problem for the generalized Schrö dinger equation which has important applications in quantum kinetic theory, water wave problems and ferromagnetism.
İsmet Gölgeleyen, Özlem Kaytmaz
doaj   +1 more source

Some results for a variation-inequality problem with fourth order p(x)-Kirchhoff operator arising from options on fresh agricultural products

open access: yesAIMS Mathematics, 2023
In this paper, we study variation-inequality initial-boundary value problems with fouth order p(x)-Kirchhoff operators. First, an operator is constructed based on the Leray Schauder principle, and the existence of solutions is obtained.
Tao Wu
doaj   +1 more source

The concept of cone b-Banach space and fixed point theorems

open access: yesOpen Mathematics, 2021
In this article, the concepts of cone b-norm and cone b-Banach space are given. Some new fixed point theorems in cone b-Banach spaces are established. The new results improve some fixed point theorems in cone Banach spaces.
Yang Chen, Zhu Xiaolin
doaj   +1 more source

IDENTIFICATION OF THE RIGHT HAND SIDE OF A QUASILINEAR PSEUDOPARABOLIC EQUATION WITH MEMORY TERM

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2021
The study of equations of mathematical physics, including inverse problems, is relevant today. This work is devoted to the fundamental problem of studying the solvability and qualitative properties of the solution of the inverse problem for a ...
S. E. Aitzhanov   +2 more
doaj   +1 more source

On a fractional Schrödinger-Poisson system with strong singularity

open access: yesOpen Mathematics, 2021
We investigate a fractional Schrödinger-Poisson system with strong singularity as follows: (−Δ)su+V(x)u+λϕu=f(x)u−γ,x∈R3,(−Δ)tϕ=u2,x∈R3,u>0,x∈R3,\left\{\begin{array}{ll}{\left(-\Delta )}^{s}u+V\left(x)u+\lambda \phi u=f\left(x){u}^{-\gamma },& x\in ...
Yu Shengbin, Chen Jianqing
doaj   +1 more source

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