Results 21 to 30 of about 183 (76)

Structure Preserving Discretizations of the Liouville Equation and their Numerical Tests [PDF]

open access: yes, 2015
The main purpose of this article is to show how symmetry structures in partial differential equations can be preserved in a discrete world and reflected in difference schemes. Three different structure preserving discretizations of the Liouville equation
Levi, Decio   +2 more
core   +1 more source

Note on the binomial partial difference equation [PDF]

open access: yes, 2015
Some formulas for the "general solution" to the binomial partial difference equation $$c_{m,n}=c_{m-1,n}+c_{m-1,n-1},$$ are known in the literature. However, it seems that there is no such a formula on the most natural domain connected to the equation ...
Stevic, Stevo
core   +2 more sources

Differential Calculus on h-Deformed Spaces [PDF]

open access: yes, 2017
We construct the rings of generalized differential operators on the ${\bf h}$-deformed vector space of ${\bf gl}$-type. In contrast to the $q$-deformed vector space, where the ring of differential operators is unique up to an isomorphism, the general ...
Herlemont, Basile, Ogievetsky, Oleg
core   +5 more sources

Existence and Nonexistence of Periodic Solutions for a Class of Fourth‐Order Partial Difference Equations

open access: yesJournal of Mathematics, Volume 2025, Issue 1, 2025.
In this paper, we investigate multiplicity, existence, and nonexistence of periodic solutions to a fourth‐order partial difference equation via linking theorem and saddle point theorem. Our obtained results significantly generalize and improve some existing ones.
Dan Li, Yuhua Long, Ji Gao
wiley   +1 more source

Deriving conservation laws for ABS lattice equations from Lax pairs

open access: yes, 2012
In the paper we derive infinitely many conservation laws for the ABS lattice equations from their Lax pairs. These conservation laws can algebraically be expressed by means of some known polynomials.
Cheng, Jun-wei   +2 more
core   +1 more source

A Completeness Study on Certain $2\times2$ Lax Pairs Including Zero Terms [PDF]

open access: yes, 2011
We expand the completeness study instigated in [J. Math. Phys. 50 (2009), 103516, 29 pages] which found all $2\times2$ Lax pairs with non-zero, separable terms in each entry of each Lax matrix, along with the most general nonlinear systems that can be ...
Hay, Mike C.
core   +4 more sources

Treatment of moderate‐to‐severe canine atopic dermatitis with modified‐release mycophenolate (OKV‐1001): A pilot open‐label, single‐arm multicentric clinical trial

open access: yesVeterinary Dermatology, Volume 35, Issue 6, Page 652-661, December 2024.
Background – Mycophenolate is an immunomodulating agent successfully used for the treatment of moderate‐to‐severe atopic dermatitis (AD) in people. Mycophenolate is an effective steroid‐sparing treatment option for use in dogs with inflammatory skin diseases.
Michael Klotsman   +5 more
wiley   +1 more source

A superintegrable discrete oscillator and two-variable Meixner polynomials

open access: yes, 2015
A superintegrable, discrete model of the quantum isotropic oscillator in two-dimensions is introduced. The system is defined on the regular, infinite-dimensional $\mathbb{N}\times \mathbb{N}$ lattice.
Gaboriaud, Julien   +3 more
core   +1 more source

Integrable discretisations and Yang–Baxter maps for super nonlinear Schrödinger systems

open access: yesNuclear Physics B
We construct an integrable Grassmann-extended vertex-bond discrete system, which can be restricted to the Grassmann-extended Adler–Yamilov system of partial difference equations, and we derive a Darboux matrix and a Bäcklund transformation for the latter.
Sotiris Konstantinou-Rizos
doaj   +1 more source

Multidimensional Toda Lattices: Continuous and Discrete Time [PDF]

open access: yes, 2016
In this paper we present multidimensional analogues of both the continuous- and discrete-time Toda lattices. The integrable systems that we consider here have two or more space coordinates.
Aptekarev, Alexander I.   +3 more
core   +3 more sources

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