Results 11 to 20 of about 119,991 (198)

Closed-Form Solutions of Linear Ordinary Differential Equations with General Boundary Conditions

open access: yesAxioms, 2021
This paper deals with the solution of boundary value problems for ordinary differential equations with general boundary conditions. We obtain closed-form solutions in a symbolic form of problems with the general n-th order differential operator, as well ...
Efthimios Providas   +2 more
doaj   +1 more source

General Theory of the Factorization of Ordinary Linear Differential Operators [PDF]

open access: yesTransactions of the American Mathematical Society, 1974
The problem of factoring the general ordinary linear differential operator L y = y ( n ) + p n − 1
openaire   +2 more sources

Characterization of self-adjoint domains for differential operators with interior singular points

open access: yesArab Journal of Mathematical Sciences, 2016
We characterize the self-adjoint domains of general even order linear ordinary differential operators which have finite interior singular points in terms of real-parameter solutions of the differential equation.
Qiuxia Yang, Wanyi Wang
doaj   +1 more source

Differential operators on the superline, Berezinians, and Darboux transformations [PDF]

open access: yes, 2017
We consider differential operators on a supermanifold of dimension $1|1$. We define non-degenerate operators as those with an invertible top coefficient in the expansion in the "superderivative" $D$ (which is the square root of the shift generator, the ...
Li, Simon   +2 more
core   +2 more sources

Holographic duality for 3d spin-3 gravity coupled to scalar field

open access: yesNuclear Physics B, 2019
The 3d spin-3 gravity theory is holographically dual to a 2d W3-extended CFT. In a large-c limit the symmetry algebra of the CFT reduces to SU(1,2)×SU(1,2).
Ryuichi Nakayama   +2 more
doaj   +1 more source

Quantum-induced interactions in the moduli space of degenerate BPS domain walls [PDF]

open access: yes, 2014
In this paper quantum effects are investigated in a very special two-scalar field model having a moduli space of BPS topological defects. In a $(1+1)$-dimensional space-time the defects are classically degenerate in mass kinks, but in $(3+1)$ dimensions ...
Alonso-Izquierdo, Alberto   +1 more
core   +3 more sources

Conditional symmetry and spectrum of the one-dimensional Schr\"odinger equation [PDF]

open access: yes, 1996
We develop an algebraic approach to studying the spectral properties of the stationary Schr\"odinger equation in one dimension based on its high order conditional symmetries.
Bluman G. W.   +8 more
core   +2 more sources

New Fundamental Symmetries of Integrable Systems and Partial Bethe Ansatz [PDF]

open access: yes, 1997
We introduce a new concept of quasi-Yang-Baxter algebras. The quantum quasi-Yang-Baxter algebras being simple but non-trivial deformations of ordinary algebras of monodromy matrices realize a new type of quantum dynamical symmetries and find an ...
A.G. Ushveridze   +46 more
core   +2 more sources

The Logarithmic Conformal Field Theories [PDF]

open access: yes, 1996
We study the correlation functions of logarithmic conformal field theories. First, assuming conformal invariance, we explicitly calculate two-- and three-- point functions.
A. Aghamohammadi   +19 more
core   +4 more sources

d=2, N=2 Superconformally Covariant Operators and Super W-Algebras

open access: yes, 1997
We construct and classify superconformally covariant differential operators defined on N=2 super Riemann surfaces. By contrast to the N=1 theory, these operators give rise to partial rather than ordinary differential equations which leads to novel ...
Gieres, F., Gourmelen, S.
core   +2 more sources

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