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Related papers: The dynamic $\Phi^4_3$ model comes down from infin…

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We prove the large scale convergence of a class of stochastic weakly nonlinear reaction-diffusion models on $\mathbb{R}^3$ to the dynamical $\Phi^4_3$ model by paracontrolled distributions on weighted Besov space. Our approach depends on…

Probability · Mathematics 2018-11-07 Rongchan Zhu , Xiangchan Zhu

We establish the positive energy theorem and a Penrose-type inequality for 3-dimensional asymptotically hyperboloidal initial data sets with toroidal infinity, weakly trapped boundary, and satisfying the dominant energy condition. In the…

Differential Geometry · Mathematics 2022-10-05 Aghil Alaee , Pei-Ken Hung , Marcus Khuri

We constructed in a previous work the $\Phi^4_3$ measures on compact boundaryless $3$-dimensional Riemannian manifolds as some invariant probability measures of some Markovian dynamics. We prove in the present work that these dynamics have…

Probability · Mathematics 2024-09-30 I. Bailleul

We construct the $\Phi^4_3$ measure on an arbitrary 3-dimensional compact Riemannian manifold without boundary as an invariant probability measure of a singular stochastic partial differential equation. Proving the nontriviality and the…

Mathematical Physics · Physics 2025-11-05 I. Bailleul , N. V. Dang , L. Ferdinand , T. D. Tô

We show almost sure wellposedness of mild solution to the cubic nonlinear wave equation in a weighted Besov space over $\mathbb R^2$. To achieve this, we show that any weak limit of $\phi^4$ measures on increasing tori is invariant under…

Analysis of PDEs · Mathematics 2026-01-14 Nikolay Barashkov , Petri Laarne

We prove gradient bounds for the Markov semigroup of the dynamic $\varphi^4_2$-model on a torus of fixed size $L>0$. For sufficiently large mass $m>0$ these estimates imply exponential contraction of the Markov semigroup. Our method is…

Probability · Mathematics 2022-02-23 Florian Kunick , Pavlos Tsatsoulis

We consider the quantum Gibbs state of an interacting Bose gas on the 2D torus. We set temperature, chemical potential and coupling constant in a regime where classical field theory gives leading order asymptotics. In the same limit, the…

Analysis of PDEs · Mathematics 2025-12-13 Lucas Jougla , Nicolas Rougerie

We study the lattice approximations to the dynamical $\Phi^4_3$ model by paracontrolled distributions proposed in [GIP13]. We prove that the solutions to the lattice systems converge to the solution to the dynamical $\Phi_3^4$ model in…

Probability · Mathematics 2015-08-25 Rongchan Zhu , Xiangchan Zhu

In this paper, we present a uniqueness result for solutions to the Gross-Pitaevskii hierarchy on the three-dimensional torus, under the assumption of an a priori spacetime bound. We show that this a priori bound is satisfied for factorized…

Analysis of PDEs · Mathematics 2015-09-07 P. Gressman , V. Sohinger , G. Staffilani

We prove that the grand canonical Gibbs state of an interacting two-dimensional quantum Bose gas confined by a trapping potential converges to the complex Euclidean field theory with local quartic self-interaction, when the density of the…

Mathematical Physics · Physics 2026-03-13 Cristina Caraci , Antti Knowles , Alessio Ranallo , Pedro Torres Giesteira

Consider a three-dimensional vector field $F$ which generates a finite number of fixed points - what can we say on its unbounded dynamics? In this paper we tackle this question, and prove sufficient conditions for $F$ to have fixed points…

Dynamical Systems · Mathematics 2025-02-13 Eran Igra

We introduce a new method for constructing local-in-time solutions the incompressible Euler equations in Sobolev spaces on an arbitrary Sobolev bounded domain. The method is based on construction of an analytic solution in an analytically…

Analysis of PDEs · Mathematics 2025-11-04 I. Kukavica , W. S. Ożański

In connection with the recent proposal for possible singularity formation at the boundary for solutions of 3d axi-symmetric incompressible Euler's equations (Luo and Hou, 2013), we study models for the dynamics at the boundary and show that…

Analysis of PDEs · Mathematics 2015-09-15 Kyudong Choi , Thomas Y. Hou , Alexander Kiselev , Guo Luo , Vladimir Sverak , Yao Yao

In this work the evolution of a fluid droplet in vacuum is considered. This means that the surface tension and the fluid forces are in equilibrium at the free boundary. The fluid is governed by the incompressible quasi-steady Stokes…

Analysis of PDEs · Mathematics 2024-11-12 Malte Kampschulte , Joonas Niinikoski , Sebastian Schwarzacher

The blow-up in finite time for the solutions to the initial-boundary value problem associated to the multi-dimensional quantum hydrodynamic model in a bounded domain is proved. The model consists on conservation of mass equation and a…

Mathematical Physics · Physics 2007-05-23 Irene M. Gamba , Maria Pia Gualdani , Ping Zhang

We consider the Schr\"odinger equations with arbitrary (large) power non-linearity on the three-dimensional torus. We construct non-trivial probability measures supported on Sobolev spaces and show that the equations are globally well-posed…

Analysis of PDEs · Mathematics 2021-08-20 Mouhamadou Sy

Considering the standard abelian sandpile model in one dimension, we construct an infinite volume Markov process corresponding to its thermodynamic (infinite volume) limit. The main difficulty we overcome is the strong non-locality of the…

Probability · Mathematics 2007-05-23 C. Maes , F. Redig , E. Saada , A. Van Moffaert

The consistency condition, which guarantees a well organized small-coupling asymptotic expansion for the thermodynamics of massless $\phi^4$-theory, is generalized to any desired order of the perturbative treatment. Based on a strong…

High Energy Physics - Phenomenology · Physics 2009-10-30 Jens Reinbach , Hermann Schulz

We establish the first complete classification of finite-time blow-up scenarios for strong solutions to the three-dimensional incompressible Euler equations with surface tension in a bounded domain possessing a closed, moving free boundary.…

Analysis of PDEs · Mathematics 2025-07-15 Chengchun Hao , Tao Luo , Siqi Yang

We present a technique for derivation of a priori bounds for Gevrey-Sobolev norms of space-periodic three-dimensional solutions to evolutionary partial differential equations of hydrodynamic type. It involves a transformation of the flow…

Analysis of PDEs · Mathematics 2012-12-11 V. Zheligovsky