Results 71 to 80 of about 5,769 (217)

A Spectral Theory for a λ-Rational Sturm–Liouville Problem

open access: yesJournal of Differential Equations, 2001
Linearizing the Navier-Stokes equations with a magnetic field for a velocity field of a plasma with axial symmetry, the axial and the azimuthal components of the velocity can be eliminated at the expense of a rational dependence on the eigenvalue parameter in the equation for the remaining velocity component. Corresponding eigenvalue problems such as \[
Adamjan, V., Langer, Heinz, Langer, M.
openaire   +3 more sources

Poisson kernels of q$q$‐3D Hermite polynomials expansion for functions of several variables via generalized q$q$‐heat equations

open access: yesTransactions of the London Mathematical Society, Volume 12, Issue 1, December 2025.
Abstract The representation of an analytic function as a series involving q$q$‐polynomials is a fundamental problem in classical analysis and approximation theory [Ramanujan J. 19 (2009), no. 3, 281–303]. In this paper, our investigation is focusing on q$q$‐analog complex Hermite polynomials, which were motivated by Ismail and Zhang [Adv. Appl.
Jian Cao
wiley   +1 more source

Discontinuous Sturm‐Liouville Problems and Associated Sampling Theories [PDF]

open access: yesAbstract and Applied Analysis, 2011
This paper investigates the sampling analysis associated with discontinuous Sturm‐Liouville problems with eigenvalue parameters in two boundary conditions and with transmission conditions at the point of discontinuity. We closely follow the analysis derived by Fulton (1977) to establish the needed relations for the derivations of the sampling theorems ...
openaire   +3 more sources

Shape Morphing Programmable Systems for Enhanced Control in Low‐Velocity Flow Applications

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 11, November 2025.
A soft, Lorentz‐force‐driven programmable surface enables rapid, reversible shape morphing for active flow control. Integrating experimental, numerical, and modeling approaches, the system demonstrates effective modulation of near‐wall flow and momentum at low velocities, offering pathways for bio‐inspired aerodynamics and natural locomotion emulation.
Jin‐Tae Kim   +16 more
wiley   +1 more source

A study on a Sturm-Liouville theory

open access: yes, 2016
Este texto aborda os principais resultados sobre a Teoria de Sturm-Liouville assim como os pré-requisitos necessários para construí-los, entre eles o Teorema Espectral para Operadores Compactos e a Teoria de Fredholm.
Souza, Valterlan Atanasio de [UNESP]
core  

Discrete spectra of convolutions of compactly supported functions on SE(2) using Sturm–Liouville theory

open access: yes, 2020
This paper introduces a systematic study for analytic aspects of discrete spectra methods for functions supported on some compact domains of SE(2), according to Sturm–Liouville theory.
Chirikjian, GS, Ghaani Farashahi, A
core   +1 more source

Non-trivial solutions for two-point boundary-value problems of fourth-order Sturm-Liouville type equations

open access: yesElectronic Journal of Differential Equations, 2012
Using critical point theory due to Bonanno [3], we prove the existence of at least one non-trivial solution for a class of two-point boundary-value problems for fourth-order Sturm-Liouville type equations.
Shapour Heidarkhani
doaj  

Localised gravity and resolved braneworlds

open access: yesJournal of High Energy Physics
Deriving an effective massless field theory for fluctuations about a braneworld spacetime requires analysis of the transverse-space-wavefunction’s second-order differential equation. There can be two strikingly different types of effective theory.
Rahim Leung, K. S. Stelle
doaj   +1 more source

Basic Sturm-Liouville theory

open access: yesRevista Técnica de la Facultad de Ingeniería, 2011
F. H. Jackson has introduced a system of numbers called ''basic numbers'' and the corresponding operations of ''basic differentiation'' and ''basic integration'' [see \textit{T. W. Chaundy}, J. Lond. Math. Soc., II. Ser. 37, 126-128 (1962; Zbl 0099.246), for references to the original work of F. H. Jackson].
openaire   +2 more sources

Sturm-Liouville-Operatorfunktionen

open access: yes, 2016
Many special functions are solutions of both, a differential and a functional equation. We use this duality to solve a large class of abstract Sturm-Liouville equations, initiating a theory of Sturm-Liouville operator functions; cosine, Bessel, and ...
Früchtl, Felix Benedikt
core  

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