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In this paper, we study the nonlinear Choquard equation \begin{eqnarray*} \Delta^{2}u-\Delta u+(1+\lambda a(x))u=(R_{\alpha}\ast|u|^{p})|u|^{p-2}u \end{eqnarray*} on a Cayley graph of a discrete group of polynomial growth with the…

Analysis of PDEs · Mathematics 2022-08-02 Ruowei Li , Lidan Wang

This paper provides a general proof of a relationship theorem between nonlinear analogue polynomial equations and the corresponding Jacobian matrix, presented recently by the present author. This theorem is also verified generally effective…

Numerical Analysis · Mathematics 2025-10-20 W. Chen

To obtain new integrable nonlinear differential equations there are some well-known methods such as Lax equations with different Lax representations. There are also some other methods which are based on integrable scalar nonlinear partial…

Exactly Solvable and Integrable Systems · Physics 2024-04-02 Metin Gürses , Aslı Pekcan

The paper develops the method for construction of families of particular solutions to some classes of nonlinear Partial Differential Equations (PDE). Method is based on the specific link between algebraic matrix equations and PDE.…

Exactly Solvable and Integrable Systems · Physics 2007-05-23 A. I. Zenchuk

The paper represents the method for construction of the families of particular solutions to some new classes of $(n+1)$ dimensional nonlinear Partial Differential Equations (PDE). Method is based on the specific link between algebraic…

Exactly Solvable and Integrable Systems · Physics 2009-11-10 A. I. Zenchuk

Using a path integral formulation for correlation functions of stochastic partial differential equations based on the Onsager-Machlup approach, we show how, by introducing a composite auxiliary field one can generate an auxiliary field loop…

Statistical Mechanics · Physics 2014-06-12 Fred Cooper

We obtain new integral representations, expressed as contour integrals in the complex Fourier plane, for the solution of fully nonhomogeneous interface problems for the linearized Cahn-Hilliard equation with arbitrary initial data on the…

Analysis of PDEs · Mathematics 2026-05-20 Andreas Chatziafratis , Alain Miranville , Tohru Ozawa

In this paper, we consider the large time asymptotic behavior of solutions to systems of two cubic nonlinear Klein-Gordon equations in one space dimension. We classify the systems by studying the quotient set of a suitable subset of systems…

Analysis of PDEs · Mathematics 2021-04-07 Satoshi Masaki , Jun-ichi Segata , Kota Uriya

Olver and Rosenau studied group-invariant solutions of (generally nonlinear) partial differential equations through the imposition of a side condition. We apply a similar idea to the special case of finite-dimensional Hamiltonian systems,…

Mathematical Physics · Physics 2012-11-27 Philip Broadbridge , Claudia M. Chanu , Willard Miller

Linear first order systems of partial differential equations of the form $\nabla f = M\nabla g,$ where $M$ is a constant matrix, are studied on vector spaces over the fields of real and complex numbers, respectively. The Cauchy--Riemann…

Analysis of PDEs · Mathematics 2015-05-13 Jens Jonasson

Motivated by the mathematics literature on the algebraic properties of so-called polynomial vector flows, we propose a technique for approximating nonlinear differential equations by linear differential equations. Although the idea of…

Optimization and Control · Mathematics 2019-02-13 R. M. Jungers , P. Tabuada

We report briefly on an approach to quantum theory entirely based on symmetry grounds which improves Geometric Quantization in some respects and provides an alternative to the canonical framework. The present scheme, being typically…

Mathematical Physics · Physics 2012-01-18 V. Aldaya , M. Calixto , J. Guerrero , F F López-Ruiz

We discuss a version the methodology for obtaining exact solutions of nonlinear partial differential equations based on the possibility for use of: (i) more than one simplest equation; (ii) relationship that contains as particular cases the…

Exactly Solvable and Integrable Systems · Physics 2019-08-06 Nikolay K. Vitanov , Zlatinka I. Dimitrova

This is a short review of the construction of quasi-periodic (algebraic-geometrical) solutions to hierarchies of nonlinear integrable equations. As is well known, the solutions are expressed through Riemann's theta-functions associated with…

Exactly Solvable and Integrable Systems · Physics 2023-09-13 A. Zabrodin

A nonlinearly generalized Camassa-Holm equation, depending an arbitrary nonlinearity power $p \neq 0$, is considered. This equation reduces to the Camassa-Holm equation when $p=1$ and shares one of the Hamiltonian structures of the…

Pattern Formation and Solitons · Physics 2016-09-09 Stephen C. Anco , Elena Recio , Maria L. Gandarias , Maria S. Bruzon

Solitons are ubiquitous in nature and play a pivotal role in the structure and dynamics of solutions of nonlinear propagation equations. In many instances where solitons exist, analytical expressions of these special objects are not…

Computational Physics · Physics 2025-04-16 O. Melchert , A. Demircan

Certain many-particle Hardy inequalities are derived in a simple and systematic way using the so-called ground state representation for the Laplacian on a subdomain of $\mathbb{R}^n$. This includes geometric extensions of the standard Hardy…

Mathematical Physics · Physics 2015-04-14 Douglas Lundholm

The commutative algebra of functions on a manifold is extended to a noncommutative algebra by considering its tensor product with the algebra of nxn complex matrices. Noncommutative geometry is used to formulate an extension of the…

General Relativity and Quantum Cosmology · Physics 2011-04-20 J. Madore , J. Mourad

We obtain existence results for a class of fully nonlinear Yamabe-type problems on non-compact manifolds, addressing both the so-called positive and negative cases. We also give explicit examples of manifolds with warped product ends and…

Analysis of PDEs · Mathematics 2024-01-17 Jonah A. J. Duncan , Yi Wang

Nonlinear matrix equations are encountered in many applications of control and engineering problems. In this work, we establish a complete study for a class of nonlinear matrix equations. With the aid of Sherman Morrison Woodbury formula,…

Numerical Analysis · Mathematics 2016-10-13 Chun-Yueh Chiang