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相关论文: Complex analytic solutions for the TQG model

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We investigate the relationship between supersymmetric gauge theories with moduli spaces and matrix models. Particular attention is given to situations where the moduli space gets quantum corrected. These corrections are controlled by…

高能物理 - 理论 · 物理学 2009-11-10 David Berenstein

We investigate the thermodynamical and causal consistency of cosmological models of the cubic Quasi-Topological Gravity (QTG) in four dimensions, as well as their phenomenological consequences. Specific restrictions on the maximal values of…

广义相对论与量子宇宙学 · 物理学 2013-04-16 U. Camara dS , A. A. Lima , G. M. Sotkov

We prove a global existence theorem (with respect to a geometrically- defined time) for globally hyperbolic solutions of the vacuum Einstein equations which admit a $T^2$ isometry group with two-dimensional spacelike orbits, acting on $T^3$…

广义相对论与量子宇宙学 · 物理学 2009-10-30 Beverly K. Berger , James Isenberg , Piotr T. Chruściel , Vincent Moncrief

This manuscript is concerned with the system \begin{align*} \left\{ \begin{array}{l} u_{tt} = (\gamma(\Theta) u_{xt})_x + (a(x,t) u_x)_x +(f(\Theta))_x, \\[1mm] \Theta_t = D\Theta_{xx} + \gamma(\Theta) u_{xt}^2 + f(\Theta) u_{xt},…

偏微分方程分析 · 数学 2026-02-06 Felix Meyer

The Goldstein-Taylor equations can be thought of as a simplified version of a BGK system, where the velocity variable is constricted to a discrete set of values. It is intimately related to turbulent fluid motion and the telegrapher's…

偏微分方程分析 · 数学 2021-03-17 Anton Arnold , Amit Einav , Beatrice Signorello , Tobias Wöhrer

We consider different generalizations of the Euler formula and discuss the properties of the associated trigonometric functions. The problem is analyzed from different points of view and it is shown that it can be formulated in a natural…

经典分析与常微分方程 · 数学 2011-03-15 D. Babusci , G. Dattoli , E. Di Palma , E. Sabia

The initial value problem is considered in the present paper for bipolar quantum hydrodynamic model for semiconductors (QHD) in $\mathbb{R}^3$. We prove that the unique strong solution exists globally in time and tends to the asymptotical…

数学物理 · 物理学 2008-11-25 Hai-Liang Li , Guojing Zhang , Kaijun Zhang

The complex Ginzburg-Landau equation (CGLE) is a general model of spatially extended nonequilibrium systems. In this paper, an analytical method for a variable coefficient CGLE is presented to obtain exact solutions. Variable…

可精确求解与可积系统 · 物理学 2019-01-15 Yusuke Uchiyama

Trigonometric time integrators are introduced as a class of explicit numerical methods for quasilinear wave equations. Second-order convergence for the semi-discretization in time with these integrators is shown for a sufficiently regular…

We study integral representations of the Gevrey series solutions of irregular hypergeometric systems. In this paper we consider the case of the systems associated with a one row matrix, for which the integration domains are one dimensional.…

代数几何 · 数学 2013-02-06 F. J. Castro-Jimenez , M. Granger

Evolution of quark-gluon plasma (QGP) near equilibrium can be described by the second-order relativistic viscous hydrodynamic equations. Consistent and analytically verifiable numerical solutions are critical for phenomenological studies of…

高能物理 - 唯象学 · 物理学 2015-05-06 Long-Gang Pang , Yoshitaka Hatta , Xin-Nian Wang , Bo-Wen Xiao

Relational particle models are employed as toy models for the study of the Problem of Time in quantum geometrodynamics. These models' analogue of the thin sandwich is resolved. It is argued that the relative configuration space and shape…

广义相对论与量子宇宙学 · 物理学 2014-11-17 E. Anderson

In this paper, we consider the model of 3D incompressible Navier-Stokes equations and 2D supercritical Surface Quasi-Geostrophic equations with time oscillation in the nonlinear term. We obtain that there exists global smooth solution of…

偏微分方程分析 · 数学 2024-04-15 Yiran Xu , Haina Li

We construct time almost-periodic solutions (global in time) with finite regularity to the incompressible Euler equations on the torus $\T^d$, with $d=3$ and $d\in\N$ even.

偏微分方程分析 · 数学 2023-12-19 Luca Franzoi , Riccardo Montalto

In this paper, we investigate the pointwise time analyticity of three differential equations. They are the biharmonic heat equation, the heat equation with potentials and some nonlinear heat equations with power nonlinearity of order $p$.…

偏微分方程分析 · 数学 2021-01-28 Chulan Zeng

It is proved that there exists a local-in-time solution $u\in C([0,T),bmo(\mathbb{R}^d)^d)$ of the Navier-Stokes equations such that every $u(t)$ has an analytic extension on a complex domain whose size only depends on $t$ (and increases…

偏微分方程分析 · 数学 2021-03-10 Liaosha Xu

An important open problem in geometric complex analysis is to find algorithms for explicit determination of basic functionals intrinsically connected with conformal and quasiconformal maps, such as their Teichmuller and Grunsky norms,…

复变函数 · 数学 2018-06-08 Samuel L. Krushkal

We present analytic self-similar or traveling wave solutions for a one-dimensional coupled system of continuity, compressible Euler and heat conduction equations. Different kind of equation of states are investigated. In certain forms of…

数学物理 · 物理学 2014-02-21 Imre Ferenc Barna , Laszlo Matyas

The Standard Model of elementary particle physics is one of the most successful models of contemporary theoretical physics being in full agreement with experiments. However, its mathematical structure deserves further investigations both…

微分几何 · 数学 2025-02-20 Volker Branding , Marko Sobak

A classical 3-D thermoviscoelastic system of Kelvin-Voigt type is considered. The existence and uniqueness of a global regular solution is proved without small data assumption. The existence proof is based on the successive approximation…

偏微分方程分析 · 数学 2011-12-15 Irena Pawlow , Wojciech M. Zajaczkowski