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相关论文: On the tritronqu\'ee solutions of P$_I^2$

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In this paper we explore the extent to which discretely self-similar (DSS) solutions to the 3D Navier-Stokes equations with rough data almost have the same asymptotics as DSS flows with smoother data. In a previous work, we established…

偏微分方程分析 · 数学 2024-09-23 Zachary Bradshaw , Patrick Phelps

We extend to the parabolic setting some of the ideas originated with Xiao Zhong's proof in \cite{Zhong} of the H\"older regularity of $p-$harmonic functions in the Heisenberg group $\Hn$. Given a number $p\ge 2$, in this paper we establish…

偏微分方程分析 · 数学 2020-01-24 Luca Capogna , Giovanna Citti , Nicola Garofalo

In a previous paper we studied the double scaling limit of unitary random matrix ensembles of the form Z_{n,N}^{-1} |\det M|^{2\alpha} e^{-N \Tr V(M)} dM with \alpha > -1/2. The factor |\det M|^{2\alpha} induces critical eigenvalue behavior…

经典分析与常微分方程 · 数学 2015-05-13 A. R. Its , A. B. J. Kuijlaars , J. Ostensson

The generalized Hastings-McLeod solutions to the inhomogeneous Painlev\'{e}-II equation arise in multi-critical unitary random matrix ensembles, the chiral two-matrix model for rectangular matrices, non-intersecting squared Bessel paths,…

数学物理 · 物理学 2024-04-15 Kurt Schmidt , Robert Buckingham

Stokes perturbative solution of the nonlinear (boundary value dependent) surface gravity wave problem is known to provide results of reasonable accuracy to engineers in estimating the phase speed and amplitudes of such nonlinear waves. The…

流体动力学 · 物理学 2016-02-10 Megan Davies , Amit K Chattopadhyay

Using the matrix Riemann-Hilbert factorization approach for nonlinear evolution systems which take the form of Lax-pair isospectral deformations and whose corresponding Lax operators contain both discrete and continuous spectra, the…

solv-int · 物理学 2007-05-23 A. V. Kitaev , A. H. Vartanian

In this paper, we are interested in matrix valued orthogonal polynomials on the real line with respect to exponential weights. We obtain strong asymptotics as the degree tends to infinity in different regions of the complex plane, as well…

经典分析与常微分方程 · 数学 2026-04-21 Alfredo Deaño , Pablo Román

We investigate the regularity of local weak solutions to evolution equations of the form \[…

偏微分方程分析 · 数学 2026-04-23 Pasquale Ambrosio , Simone Ciani , Giovanni Cupini

We extend the notion of consecutive pattern avoidance to considering sums over all permutations where each term is a product of weights depending on each consecutive pattern of a fixed length. We study the problem of finding the asymptotics…

组合数学 · 数学 2013-12-10 Richard Ehrenborg , JiYoon Jung

We study the asymptotics of recurrence coefficients for monic orthogonal polynomials p_n(z) with the quartic exponential weight exp [-N (1/2 z^2 + t/4 z^4)], where t is complex. Our goals are: A) to describe the regions of different…

可精确求解与可积系统 · 物理学 2015-03-19 Marco Bertola , Alexander Tovbis

We consider solutions to the 2d Navier-Stokes equations on $\mathbb{T}\times\mathbb{R}$ close to the Poiseuille flow, with small viscosity $\nu>0$. Our first result concerns a semigroup estimate for the linearized problem. Here we show that…

偏微分方程分析 · 数学 2020-08-26 Michele Coti Zelati , Tarek M. Elgindi , Klaus Widmayer

In the first part of this paper, the existence of infinitely many $L^p$-standing wave solutions for the nonlinear Helmholtz equation $$ -\Delta u -\lambda u=Q(x)|u|^{p-2}u\quad\text{ in }\mathbb{R}^N $$ is proven for $N\geq 2$ and…

偏微分方程分析 · 数学 2016-09-13 Gilles Evéquoz

It is proved the existence of entire solutions of the Laplace's and minimal hypersurface's PDEs on a Hadamard manifold $M$ under certain curvature conditions by investigating the asymptotic Dirichlet's problems for these PDEs. In the…

微分几何 · 数学 2012-02-29 Jaime Ripoll , Miriam Telichevesky

Motivated by the simplest case of tt*-Toda equations, we study the large and small $x$ asymptotics for $x>0$ of real solutions of the sinh-Godron Painlev\'e III($D_6$) equation. These solutions are parametrized through the monodromy data of…

可精确求解与可积系统 · 物理学 2024-10-31 Alexander R. Its , Kenta Miyahara , Maxim L. Yattselev

We consider a connection problem of the first Painlev\'{e} equation ($\mathrm{P_I}$), trying to connect the local behavior (Laurent series) near poles and the asymptotic behavior as the variable $t$ tends to negative infinity for real…

经典分析与常微分方程 · 数学 2023-01-20 Wen-Gao Long , Yu-Tian Li , Qing-hai Wang

We characterize the set of functions $u\_0\in L^2(R^n)$ such that the solution of the problem $u\_t=\mathcal{L}u$ in $R^n\times(0,\infty)$ starting from $u\_0$ satisfy upper and lower bounds of the form $c(1+t)^{-\gamma}\le \|u(t)\|\_2\le…

偏微分方程分析 · 数学 2016-03-24 Lorenzo Brandolese

We study the leading order behaviour of positive solutions of the equation -\Delta u +\varepsilon u-|u|^{p-2}u+|u|^{q-2}u=0,\qquad x\in\R^N, where $N\ge 3$, $q>p>2$ and when $\varepsilon>0$ is a small parameter. We give a complete…

偏微分方程分析 · 数学 2019-05-14 Vitaly Moroz , Cyrill B. Muratov

We investigate complex versions of the Korteweg-deVries equations and an Ito type nonlinear system with two coupled nonlinear fields. We systematically construct rational, trigonometric/hyperbolic, elliptic and soliton solutions for these…

数学物理 · 物理学 2015-03-19 Andrea Cavaglia , Andreas Fring , Bijan Bagchi

This paper is a continuation of our previous work [21], where we have established that, for the second-order degenerate hyperbolic equation (\p_t^2-t^m\Delta_x)u=f(t,x,u), locally bounded, piecewise smooth solutions u(t,x) exist when the…

偏微分方程分析 · 数学 2013-07-16 Zhuoping Ruan , Ingo Witt , Huicheng Yin

The asymptotic representations of the functions ${\rm Ai}_1(x), {\rm Gi}(x), {\rm Ai}'(x), {\rm Ai}^2(x), {\rm Bi}^ 2(x)$ are obtained. As a by-product, the factorial identity (21') is found. The derivation of asymptotic representations of…

数学物理 · 物理学 2007-05-23 A. I. Nikishov , V. I. Ritus