Results 121 to 130 of about 7,066 (206)

The Self-Adjoint Fractional Heun Operator and Its Spectral Properties

open access: yesMathematics
This paper introduces a rigorously defined fractional Heun operator constructed through a symmetric composition of left and right Riemann–Liouville fractional derivatives.
Muath Awadalla
doaj   +1 more source

Integral representation of a solution of Heun's general equation

open access: yesElectronic Journal of Differential Equations, 2007
We establish an integral representation for the Frobenius solution with an exponent zero at $z=0$ of the general Heun equation. First we present an extension of Mellin's lemma which provides a powerful method that takes into account differential ...
Jomo Batola, Francois Batola
doaj  

Scalar instabilities inside the extremal dyonic Kerr–Sen black hole: novel exact solutions and Chronology Protection Conjecture

open access: yesEuropean Physical Journal C: Particles and Fields
We investigate the stability of test scalar fields in the region inside the extremal dyonic Kerr–Sen black hole (DKSBH) horizon, where closed timelike curves exist.
David Senjaya   +2 more
doaj   +1 more source

New solutions to the confluent Heun equation

open access: yesLe Matematiche, 1998
Summary: New compact triple series solutions to the confluent Heun equation (CHE) are obtained by appropriate applications of the Laplace transform and its inverse to a suitably constructed system of soluble differential equations. The computer-algebra package MAPLE V is used to tackle an auxiliary system of nonlinear algebraic equations. This study is
openaire   +2 more sources

Black Hole Quasinormal Modes and Seiberg-Witten Theory. [PDF]

open access: yesAnn Henri Poincare, 2022
Aminov G, Grassi A, Hatsuda Y.
europepmc   +1 more source

The Heun equation and the Calogero-Moser-Sutherland system II: Perturbation and algebraic solution

open access: yesElectronic Journal of Differential Equations, 2004
We apply a method of perturbation for the $BC_1$ Inozemtsev model from the trigonometric model and show the holomorphy of perturbation. Consequently, the convergence of eigenvalues and eigenfuncions which are expressed as formal power series is proved ...
Kouichi Takemura
doaj  

Home - About - Disclaimer - Privacy