Results 41 to 50 of about 559,362 (165)

Exact solutions in massive gravity [PDF]

open access: yesClassical and Quantum Gravity, 2013
17 pages, 4 figures.
Tasinato, Gianmassimo   +2 more
openaire   +4 more sources

A novel exact solution for the fractional Ambartsumian equation

open access: yesAdvances in Difference Equations, 2021
Fractional calculus (FC) is useful in studying physical phenomena with memory effect. In this paper, a fractional form of Ambartsumian equation is considered utilizing the Caputo fractional derivative.
Abdelhalim Ebaid   +3 more
doaj   +1 more source

An Exact Solution of the Binary Singular Problem

open access: yesJournal of Function Spaces, 2014
Singularity problem exists in various branches of applied mathematics. Such ordinary differential equations accompany singular coefficients. In this paper, by using the properties of reproducing kernel, the exact solution expressions of dual singular ...
Baiqing Sun   +3 more
doaj   +1 more source

REGULARITY AND NUMERICAL SOLUTION FOR THE EXACT CONTROL

open access: yesPesquimat, 2014
In this paper we study a Numerical Method based on Finite Difference to the Boundary Exact Controllability problem for the Wave Equation. We consider the one dimensional problem.
Mauro Antonio Rincon
doaj   +1 more source

Exact Solutions for Pairing Interactions [PDF]

open access: yes, 2013
The exact solution of the BCS pairing Hamiltonian was found by Richardson in 1963. While little attention was paid to this exactly solvable model in the remainder of the 20th century, there was a burst of work at the beginning of this century focusing on its applications in different areas of quantum physics.
Dukelsky, Jorge, Pittel, S.
openaire   +3 more sources

On a class of non-linear differential equations with exact solution

open access: yesVietnam Journal of Mechanics, 2012
The present paper deals with a class of non-linear ordinary second-order differential equations with exact solutions. A procedure for finding the general exact solution based on a known particular one is derived.
Dao Huy Bich, Nguyen Dang Bich
doaj   +1 more source

Exact Axially Symmetric Solution in f(T) Gravity Theory

open access: yesAdvances in High Energy Physics, 2014
A general tetrad field with sixteen unknown functions is applied to the field equations of f(T) gravity theory. An analytic vacuum solution is derived with two constants of integration and an angle Φ that depends on the angle coordinate ϕ and radial ...
Gamal G. L. Nashed
doaj   +1 more source

Exact solution for the Anisotropic Ornstein-Uhlenbeck process. [PDF]

open access: yesPhysica A, 2022
de Almeida RMC   +4 more
europepmc   +1 more source

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