Results 61 to 70 of about 137,274 (191)
The full analytic trans-series in integrable field theories
Physics Letters B, 2023 We analyze a family of generalized energy densities in integrable quantum field theories in the presence of an external field coupled to a conserved charge.
Zoltán Bajnok +2 more
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A constructive method for an approximate solution to scalar Wiener–Hopf equations [PDF]
Proceedings of the Royal Society A, 2013 This paper presents a novel method of approximating the scalar Wiener–Hopf equation, and therefore constructing an approximate solution. The advantages of this method over the existing methods are reliability and explicit error bounds.
A. Kisil
semanticscholar +1 more source
Advanced Photonics Research, Volume 6, Issue 4, April 2025.In this article, hybrid probabilistic and geometric constellation shaping to enhance spectral efficiency in coherent optical communication systems, particularly under a Wiener phase noise channel, is investigated. By integrating a two‐stage phase search algorithm with digital signal processing and gradient descent, the method outperforms geometrically ...
Zhiyang Liu +5 more
wiley +1 more source
Wiener–Hopf Operators in Higher Dimensions: The Widom Conjecture for Piece-Wise Smooth Domains [PDF]
, 2013 We prove a two-term quasi-classical trace asymptotic formula for the functions of multi-dimensional Wiener–Hopf operators with discontinuous symbols. The discontinuities occur on surfaces which are assumed to be piece-wise smooth. Such a two-term formula
A. Sobolev
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Asymptotics of block Toeplitz determinants with piecewise continuous symbols
Communications on Pure and Applied Mathematics, Volume 78, Issue 1, Page 120-160, January 2025.Abstract We determine the asymptotics of the block Toeplitz determinants detTn(ϕ)$\det T_n(\phi)$ as n→∞$n\rightarrow \infty$ for N×N$N\times N$ matrix‐valued piecewise continuous functions ϕ$\phi$ with a finitely many jumps under mild additional conditions.
Estelle Basor +2 more
wiley +1 more source
Applied SciencesA general theory for solving electromagnetic diffraction problems with impenetrable/penetrable wedges immersed in/made of an arbitrary linear (bianistropic) medium is presented.
Vito G. Daniele, Guido Lombardi
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Fractional and Wiener–Hopf factorizations
Linear Algebra and its Applications, 2002 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +2 more sources
Clutter rank estimation for the multistage Wiener filter
IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.The authors propose an algorithm that determines the rank of the sea clutter and relates it to the number of stages in the multistage Wiener filter. The algorithm presented is formulated as a model order estimation problem that utilises the minimum description length (MDL).
Rachel Gray +3 more
wiley +1 more source
Singular Integral Equations of Convolution Type With Carleman Shift
Abstract and Applied Analysis, Volume 2025, Issue 1, 2025.This article discusses a few different types of singular integral equations of the convolution type with Carleman shift in class {0}. By using the theory of Fourier analysis, these equations under consideration are transformed into Riemann–Hilbert boundary value problems for analytic functions with shift and discontinuous coefficients.
A. S. Nagdy +3 more
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The Effect of the Wall Thickness of the Material Loaded Cavity On the RCS Reduction
Düzce Üniversitesi Bilim ve Teknoloji DergisiIn this paper, the effect of a parallel plate waveguide's wall thickness on radar cross-section reduction (RCS) is rigorously analyzed for H-polarization by using the Wiener-Hopf Technique, when the waveguide region is loaded with dielectric material and
Oğuzhan Demiryürek, Filiz Birbir Ünal
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