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The structure of the three-body Borromean nucleus 6He is approximated by a two-body di-neutron cluster model. The binding energy of the 2n-\alpha system is determined to obtain a correct description of the 2n-\alpha coordinate, as given by…

核理论 · 物理学 2008-11-26 A. M. Moro , K. Rusek , J. M. Arias , J. Gomez-Camacho , M. Rodriguez-Gallardo

We investigate finite-time blow-up for nonnegative solutions to the Cauchy problem associated with semilinear parabolic equations driven by a mixed local--nonlocal operator. The reaction term is assumed to satisfy suitable structural…

偏微分方程分析 · 数学 2026-05-11 Stefano Biagi , Fabio Punzo , Eugenio Vecchi

Pressureless Euler-Poisson equations with attractive forces are standard models in Newtonian cosmology. In this article, we further develop the spectral dynamics method and apply a novel spectral-dynamics-integration method to study the…

数学物理 · 物理学 2014-03-26 Manwai Yuen

This paper considers a system of Boltzmann equations modelling the mixture of monatomic and polyatomic gases in an $L^{2}-L^{\infty}$ perturbation theory around global modified Maxwellians accounting for the internal energy of the mixture…

偏微分方程分析 · 数学 2025-11-20 Ricardo Alonso , Zongguang Li

Given $(M,g)$ a compact Riemannian manifold of dimension $n\geq 3$, we are interested in the existence of blowing-up sign-changing families $(\ue)_{\eps>0}\in C^{2,\theta}(M)$, $\theta\in (0,1)$, of solutions to $$\Delta_g…

偏微分方程分析 · 数学 2012-10-09 Frédéric Robert , Jérôme Vétois

In this paper, we study the blow-up of solutions to the semilinear Moore-Gibson-Thompson (MGT) equation with nonlinearity of derivative type $|u_t|^p$ in the conservative case. We apply an iteration method in order to study both the…

偏微分方程分析 · 数学 2020-08-19 Wenhui Chen , Alessandro Palmieri

We prove, for the energy critcal, focusing NLW, that for Cauchy data (u_0, u_1) whose energy is smaller than that of (W,0), where W is the well-known radial positive solution to the corresponding ellipyic equation, the following dichotomy…

偏微分方程分析 · 数学 2007-05-23 Carlos E. Kenig , Frank Merle

We present a family of many-body models which are exactly solvable analytically. The models are an extended n-body interaction Lipkin-Meshkov-Glick model which considers spin-flip terms which are associated with the interaction of an…

量子物理 · 物理学 2008-11-26 I. Fuentes-Schuller , P. Barberis-Blostein

In this note, we prove a blow-up result for a semilinear generalized Tricomi equation with nonlinear term of derivative type, i.e., for the equation $\mathscr{T}_{\!\!\ell} u = |\partial_t u|^p$, where $ \mathscr{T}_{\!\!\ell} =…

偏微分方程分析 · 数学 2021-04-28 Sandra Lucente , Alessandro Palmieri

We investigate blow-up properties for the initial-boundary value problem of a Keller-Segel model with consumption of chemoattractant when the spatial dimension is three. Through a kinetic reformulation of the Keller-Segel model, we first…

偏微分方程分析 · 数学 2023-07-28 Jie Jiang , Hao Wu , Songmu Zheng

This paper presents a novel approach to establish a blow-up mechanism for the forced 3D incompressible Euler equations, with a specific focus on non-axisymmetric solutions. We construct solutions on $\mathbb{R}^3$ within the function space…

偏微分方程分析 · 数学 2023-09-18 Diego Córdoba , Luis Martínez-Zoroa

The generalized, two-component Hunter-Saxton system comprises several well-known models of fluid dynamics and serves as a tool for the study of one-dimensional fluid convection and stretching. In this article a general representation…

偏微分方程分析 · 数学 2014-11-13 Alejandro Sarria

We study global behavior of radial solutions for the nonlinear wave equation with the focusing energy critical nonlinearity in three and five space dimensions. Assuming that the solution has energy at most slightly more than the ground…

偏微分方程分析 · 数学 2010-10-20 Joachim Krieger , Kenji Nakanishi , Wilhelm Schlag

Blow-ups of derivatives and gradient catastrophes for the $n$-dimensional homogeneous Euler equation are discussed. It is shown that, in the case of generic initial data, the blow-ups exhibit a fine structure in accordance of the admissible…

可精确求解与可积系统 · 物理学 2022-10-11 B. G. Konopelchenko , G. Ortenzi

The existence of weak solutions and upper bounds for the blow-up time for time-discrete parabolic-elliptic Keller-Segel models for chemotaxis in the two-dimensional whole space are proved. For various time discretizations, including the…

偏微分方程分析 · 数学 2017-09-13 Ansgar Jüngel , Oliver Leingang

In this paper, we employ the localization technique in frequency space developed by Tao in \cite{MR4337421} to investigate the quantitative estimates for the MHD equations. With the help of quantitative Carleman inequalities given by Tao in…

偏微分方程分析 · 数学 2024-11-19 Baishun Lai , Shihao Zhang

In this paper, we consider the Schr\"odinger equation with a mass-supercritical focusing nonlinearity, in the exterior of a smooth, compact, convex obstacle of $\R^{d}$ with Dirichlet boundary conditions. We prove that solutions with…

偏微分方程分析 · 数学 2020-12-25 Oussama Landoulsi

This paper is concerned with the study of the nonlinear viscoelastic evolution equation with strong damping and source terms, described by \[u_{tt} - \Delta_{\mathbb{B}}u + \int_{0}^{t}g(t-\tau)\Delta_{\mathbb{B}}u(\tau)d\tau +…

偏微分方程分析 · 数学 2016-02-09 Mohsen Alimohammady , Morteza Koozehgar Kalleji

This paper concerns the bubbling phenomena for the $L^2$-critical half-wave equation in dimension one. Given arbitrarily finitely many distinct singularities, we construct blow-up solutions concentrating exactly at these singularities. This…

偏微分方程分析 · 数学 2023-09-20 Daomin Cao , Yiming Su , Deng Zhang

We verify the critical case $p=p_0(n)$ of Strauss' conjecture (1981) concerning the blow-up of solutions to semilinear wave equations with variable coefficients in $\mathbf{R}^n$, where $n\geq 2$. The perturbations of Laplace operator are…

偏微分方程分析 · 数学 2018-07-10 Kyouhei Wakasa , Borislav Yordanov