Advanced Approaches to Mathematical Physics Problems

A special issue of Mathematics (ISSN 2227-7390). This special issue belongs to the section "Mathematical Physics".

Deadline for manuscript submissions: 30 November 2024 | Viewed by 907

Special Issue Editor


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Guest Editor
Mathematics Department, Kansas State University, Manhattan, KS 66506-2602, USA
Interests: differential and integral equations; operator theory; ill-posed and inverse problems; scattering theory; functional analysis; spectral theory; numerical analysis; theoretical electrical engineering; signal estimation; tomography
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Special Issue Information

Dear Colleagues,

This Special Issue concentrates on the following three topics:

  1. Wave scattering by many small bodies and the creation of materials with a desired refraction coefficient. Many-body wave scattering is a major problem in mathematical physics. The assumption that a<<d<<λ, where a is the characteristic size of the small bodies, d is the minimal distance between the bodies and λ is the wavelength, allows one to give an asymptotically exact solution of the many-body scattering problem when multiple scattering is essential. 
  2. Analysis of the Navier–Stokes equation, which is one of the greatest problems in mathematical physics. This Special Issue addresses proof of the contradictory nature of the Navier–Stokes problem (NSP) in the three-dimensional space without boundaries and the NSP paradox, which solves one of the Millennium Prize Problems.
  3. Boundary values of analytic functions and singular integral equations in spaces of summable functions. 

Prof. Dr. Alexander G. Ramm
Guest Editor

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • many-body wave scattering
  • creating materials with a desired refraction coefficient
  • Navier–Stokes problem
  • singular integral equations on L1(S)
  • summable boundary values of analytic functions

Published Papers (1 paper)

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Research

20 pages, 331 KiB  
Article
Regularized Asymptotics of the Solution of a Singularly Perturbed Mixed Problem on the Semiaxis for the Schrödinger Equation with the Potential Q = X2
by Alexander Yeliseev, Tatiana Ratnikova and Daria Shaposhnikova
Mathematics 2023, 11(20), 4328; https://doi.org/10.3390/math11204328 - 17 Oct 2023
Viewed by 535
Abstract
In this paper, we study the solution of a singularly perturbed inhomogeneous mixed problem on the half-axis for the Schrödinger equation in the presence of a “strong” turning point for the limit operator on time interval that do not contain focal points. Based [...] Read more.
In this paper, we study the solution of a singularly perturbed inhomogeneous mixed problem on the half-axis for the Schrödinger equation in the presence of a “strong” turning point for the limit operator on time interval that do not contain focal points. Based on the ideas of the regularization method for asymptotic integration of problems with an unstable spectrum, it is shown how regularizing functions should be constructed for this type of singularity. The paper describes in detail the formalism of the regularization method, justifies the algorithm, constructs an asymptotic solution of any order in a small parameter, and proves a theorem on the asymptotic convergence of the resulting series. Full article
(This article belongs to the Special Issue Advanced Approaches to Mathematical Physics Problems)
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