Homoclinic solutions in periodic partial difference equations
By using critical point theory in combination with periodic approximations, we obtain novel sufficient conditions for the existence of nontrivial homoclinic solutions for a class of periodic partial difference equations with sign-changing mixed ...
Mei Peng, Zhou Zhan, Yu Jianshe
doaj +1 more source
Hirota equation and the quantum plane
We discuss geometric integrability of Hirota's discrete KP equation in the framework of projective geometry over division rings using the recently introduced notion of Desargues maps.
Doliwa, Adam
core +1 more source
Mathematical Structure of Loop Quantum Cosmology: Homogeneous Models [PDF]
The mathematical structure of homogeneous loop quantum cosmology is analyzed, starting with and taking into account the general classification of homogeneous connections not restricted to be Abelian.
Bojowald, Martin
core +3 more sources
Percival Lagrangian approach to Aubry-Mather theory [PDF]
We present some streamlined proofs of some of the basic results in Aubry-Mather theory (existence of quasi-periodic minimizers, multiplicity results when there are gaps among minimizers) based on the study of hull functions.
De La Llave, Rafael, Xifeng Su
core
In this paper, a fourth-order partial divided-difference equation on quadratic lattices with polynomial coefficients satisfied by bivariate Racah polynomials is presented.
Area, I. +4 more
core +1 more source
Dynamics of a cross-superdiffusive SIRS model with delay effects in transmission and treatment. [PDF]
Mvogo A +3 more
europepmc +1 more source
Lattice equations arising from discrete Painlev\'e systems. II. $A_4^{(1)}$ case
In this paper, we construct two lattices from the $\tau$ functions of $A_4^{(1)}$-surface $q$-Painlev\'e equations, on which quad-equations of ABS type appear.
Joshi, Nalini +2 more
core +1 more source
An efficient nonstandard computer method to solve a compartmental epidemiological model for COVID-19 with vaccination and population migration. [PDF]
Herrera-Serrano JE +3 more
europepmc +1 more source
On a class of nonlinear discrete problems of Kirchhoff type [PDF]
In view of variational methods and critical points theory, we study the existence of solutions for a discrete boundary value problem, which is a discrete variant of a continuous (p1(x), p2(x))-Kirchhoff-type problem, with a real parameter λ > 0 ...
AYOUJIL, Abdesslem +2 more
core +2 more sources
Analysis of a nonstandard computer method to simulate a nonlinear stochastic epidemiological model of coronavirus-like diseases. [PDF]
Macías-Díaz JE +3 more
europepmc +1 more source

