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The well-posedness is established for multi-dimensional mean-field stochastic Volterra equations with Lipschitz continuous coefficients and allowing for singular kernels as well as for one-dimensional mean-field stochastic Volterra…

Probability · Mathematics 2025-09-22 David J. Prömel , David Scheffels

We prove the existence of non-trivial solutions for a fractional Schr$\ddot{o}$dinger-Poisson equation in $\mathbb{R}^{3}$. The proof is based on the perturbation method and the mountain pass theorem.

Analysis of PDEs · Mathematics 2017-01-03 Kexue Li

Isotropic and homogeneous turbulence driven by an energy input modulated in time is studied within a variable range mean-field theory. The response of the system, observed in the second order moment of the large-scale velocity difference…

Chaotic Dynamics · Physics 2014-03-20 A. von der Heydt , S. Grossmann , D. Lohse

Several classes of solutions of the generalized Weierstrass system, which induces constant mean curvature surfaces into four-dimensional Euclidean space are constructed. A gauge transformation allows us to simplify the system considered and…

Exactly Solvable and Integrable Systems · Physics 2007-05-23 P. Bracken , A. M. Grundland

We discuss simple vacuum solutions to the Einstein Equations in five dimensional space-times compactified in two different ways. In such spaces, one black hole phase and more then one black string phase may exist. Several old metrics are…

High Energy Physics - Theory · Physics 2009-11-11 Mihai Bondarescu

For non-monotone single and two-populations time-dependent Mean-Field Game systems we obtain the existence of an infinite number of branches of non-trivial solutions. These non-trivial solutions are in particular shown to exhibit an…

Analysis of PDEs · Mathematics 2018-12-20 Marco Cirant

For $N\geq 4$, we let $\Omega$ be a bounded domain of $\mathbb{R}^N$ and $\Gamma$ be a closed curve contained in $\Omega$. We study existence of positive solutions $u \in H^1_0\left(\Omega\right)$ to the equation…

Analysis of PDEs · Mathematics 2024-06-27 El Hadji Abdoulaye Thiam , Abdourahmane Diatta

The comparison of calculations methods in nonperturbative quantum fields theory and turbulence theory is made. The main result is that in both cases there is an infinite equations set. In the first case it is the equations set for Green's…

High Energy Physics - Phenomenology · Physics 2013-03-05 Vladimir Dzhunushaliev

We summarize an explicit construction of a duality cycle for geometric transitions in type II and heterotic theories. We emphasize that the manifolds with torsion constructed with this duality cycle are crucial for understanding different…

High Energy Physics - Theory · Physics 2011-04-11 Katrin Becker , Melanie Becker , Keshav Dasgupta , Radu Tatar

We obtain the most general static intersecting brane solutions by directly solving the relevant equations of motion analytically and in complete generality. These solutions reduce to the known ones in special cases, and contain further a…

High Energy Physics - Theory · Physics 2014-03-13 S. Kalyana Rama

We obtained steady solutions to the two-dimensional Boussinesq approximation equations without mean temperature gradient. This system is referred to as free convection in this paper. Under an external flow described by the stream function…

Chaotic Dynamics · Physics 2009-11-07 Sadayoshi Toh , Takeshi Matsumoto

When using a finite difference method to solve an initial--boundary--value problem, the truncation error is often of lower order at a few grid points near boundaries than in the interior. Normal mode analysis is a powerful tool to analyze…

Numerical Analysis · Mathematics 2018-08-23 Siyang Wang , Anna Nissen , Gunilla Kreiss

We prove the existence of generalized solution for incompressible and viscous non-Newtonian two-phase fluid flow for spatial dimension 2 and 3. The phase boundary moves along with the fluid flow plus its mean curvature while exerting…

Analysis of PDEs · Mathematics 2016-06-02 Chun Liu , Norifumi Sato , Yoshihiro Tonegawa

The Jimbo-Miwa equation is the second equation in the well known KP hierarchy of integrable systems, which is used to describe certain interesting (3+1)-dimensional waves in physics but not pass any of the conventional integrability tests.…

Mathematical Physics · Physics 2009-02-24 Bintao Cao

There exist rotationally symmetric translating solutions to mean curvature flow that can be written as a graph over Euclidean space. This result is well-known. Its proof uses the symmetry and techniques from partial differential equations.…

Differential Geometry · Mathematics 2025-05-23 Hakar Raji , Oliver C. Schnürer

We present here two new techniques to solve the one-dimensional random flight. The first one is an expansion in the number of collisions. The second one is the obtention of a Fourier series. This second technique can be applied to an…

Mathematical Physics · Physics 2023-06-30 Ricardo García-Pelayo

In this article, we investigate mean field effects for a bosonic gas harmonically trapped above the transition temperature in the collisionless regime. We point out that those effects can play also a role in low dimensional system. Our…

Statistical Mechanics · Physics 2016-08-31 D. Guery-Odelin

Two body tunneling problems are hard to treat analytically due to the incompatibility between tunneling and perturbation theory. The lack of classical solutions of the Euclidean Lagrangian of continuous systems further thwarts…

Nuclear Theory · Physics 2026-03-09 Guo Ye

This is the second part of our work initiating the rigorous study of wave turbulence for water waves equations. We combine energy estimates, normal forms, and probabilistic and combinatorial arguments to complete the construction of…

Analysis of PDEs · Mathematics 2025-05-14 Yu Deng , Alexandru Ionescu , Fabio Pusateri

Two-dimensional turbulence appears to be a more formidable problem than three-dimensional turbulence despite the numerical advantage of working with one less dimension. In the present paper we review recent numerical investigations of the…

Chaotic Dynamics · Physics 2010-11-16 Eleftherios Gkioulekas , Ka-Kit Tung
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