Results 111 to 120 of about 203,974 (250)

Bright and Dark Breathers on an Elliptic Wave in the Defocusing mKdV Equation

open access: yesStudies in Applied Mathematics, Volume 156, Issue 1, January 2026.
ABSTRACT Breathers on an elliptic wave background consist of nonlinear superpositions of a soliton and a periodic wave, both traveling with different wave speeds and interacting periodically in the space‐time. For the defocusing modified Korteweg–de Vries equation, the construction of general breathers has been an open problem since the elliptic wave ...
Dmitry E. Pelinovsky, Rudi Weikard
wiley   +1 more source

Stable super-resolution limit and smallest singular value of restricted Fourier matrices

open access: yes, 2018
Super-resolution refers to the process of recovering the locations and amplitudes of a collection of point sources, represented as a discrete measure, given $M+1$ of its noisy low-frequency Fourier coefficients.
Li, Weilin, Liao, Wenjing
core  

Plank theorems and their applications: A survey

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 1, January 2026.
Abstract Plank problems concern the covering of convex bodies by planks in Euclidean space and are related to famous open problems in convex geometry. In this survey, we introduce plank problems and present surprising applications of plank theorems in various areas of mathematics.
William Verreault
wiley   +1 more source

A Study of Movable Singularities in Non-Algebraic First-Order Autonomous Ordinary Differential Equations

open access: yesMathematics
We studied the movable singularities of solutions of autonomous non-algebraic first-order ordinary differential equations in the form of y′=I(y(t)) and y′=I1(y(t))+I2(y(t))+⋯+In(y(t)), aiming to prove that all movable singularities of all complex ...
Xingyu Liu
doaj   +1 more source

From pathological to paradigmatic: A retrospective on Eremenko and Lyubich's entire functions

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 1, January 2026.
Abstract This paper surveys the impact of Eremenko and Lyubich's paper “Examples of entire functions with pathological dynamics”, published in 1987 in the Journal of the London Mathematical Society. Through a clever extension and use of classical approximation theorems, the authors constructed examples exhibiting behaviours previously unseen in ...
Núria Fagella, Leticia Pardo‐Simón
wiley   +1 more source

VLSI Design of a Variable-Length FFT/IFFT Processor for OFDM-Based Communication Systems

open access: yesEURASIP Journal on Advances in Signal Processing, 2003
The technique of {orthogonal frequency division multiplexing (OFDM)} is famous for its robustness against frequency-selective fading channel. This technique has been widely used in many wired and wireless communication systems.
Jen-Chih Kuo   +3 more
doaj   +1 more source

Exact Solitary Wave Solutions in Nonlinear Carbon Nanotube Composite Beams on Viscoelastic Foundations Under M‐Truncated Derivative

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
In this study, the nonlinear partial differential equation that governs the free vibration of a carbon nanotube composite beam is analytically investigated using the truncated M‐fractional derivative. This model is a beam supported by a nonlinear viscoelastic base and reinforced by carbon nanotubes.
Nadia Javed   +7 more
wiley   +1 more source

Natural frequencies of shear deformed functionally graded beams using inverse trigonometric functions

open access: yesJournal of the Brazilian Society of Mechanical Sciences and Engineering, 2017
K. Pradhan, S. Chakraverty
semanticscholar   +2 more sources

On Stereographic Semicircular Quasi Lindley Distribution

open access: yesJournal of New Results in Science, 2019
In this paper, we made anattempt to construct a new Semicircular model, we call this as “StereographicSemicircularQuasi Lindleydistribution,” by applying modified inverse Stereographicprojection on Quasi Lindley distribution (Rama and Mishra (2013)) for ...
K.L.N. Sastry   +2 more
doaj  

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