The uniqueness of the ground state and the dynamics of nonlinear Schrödinger equation with inverse square potential

This paper establishes the uniqueness of ground state solutions for the nonlinear Schrödinger equation with an inverse square potential by adapting the classical shooting method, and subsequently utilizes this result alongside spectral analysis to construct stable/unstable manifolds and classify solutions on the mass-energy level surface in dimensions d=3,4,5d=3, 4, 5.

Kai Yang, Chongchun Zeng, Xiaoyi ZhangThu, 12 Ma🔢 math

Equilibrium under Time-Inconsistency: A New Existence Theory by Vanishing Entropy Regularization

This paper establishes a new existence theory for equilibria in continuous-time time-inconsistent stochastic control problems by proving that solutions to entropy-regularized exploratory equilibrium HJB equations converge to a weak solution of the generalized equilibrium HJB equation as the regularization vanishes, thereby resolving the open problem of existence without requiring strong regularity assumptions.

Zhenhua Wang, Xiang Yu, Jingjie Zhang, Zhou ZhouThu, 12 Ma🔢 math

On the ground state of the nonlinear Schr{ö}dinger equation: asymptotic behavior at the endpoint powers

This paper investigates the asymptotic behavior of ground states for the nonlinear Schrödinger equation at endpoint powers, proving strong convergence with explicit bounds to a Gaussian "Gausson" in the logarithmic limit and to an Aubin-Talenti algebraic soliton in dimensions three and higher.

Rémi Carles (IRMAR), Quentin Chauleur (Paradyse), Guillaume Ferriere (Paradyse), Dmitry PelinovskyThu, 12 Ma🔢 math-ph

Quiescent Big Bang formation in $2+1$ dimensions

This paper proves that (2+1)(2+1)-dimensional solutions to the Einstein scalar-field Vlasov system, initially close to FLRW spacetimes on closed surfaces of arbitrary genus, exhibit stable Big Bang singularities with quiescent, velocity-term-dominated asymptotics and C2C^2-inextendibility, thereby establishing the Strong Cosmic Censorship conjecture for a corresponding class of polarized U(1)U(1)-symmetric vacuum solutions.

Liam UrbanThu, 12 Ma⚛️ gr-qc

Local-in-Time Existence of L1L^1 solutions to the Gravity Water Wave Kinetic Equation

This paper establishes the local-in-time existence of L1L^1 strong solutions to the gravity water wave kinetic equation by rigorously deriving a sharper O(kk3)\mathcal{O}(|k||k_3|) bound for the collision kernel's growth in the highly non-local regime and utilizing this improved estimate to overcome the associated singular integral challenges.

Yulin Pan, Xiaoxu WuThu, 12 Ma🔢 math-ph

Development of Implosions of Solutions to the Three-Dimensional Degenerate Compressible Navier-Stokes Equations

This paper establishes that for the three-dimensional degenerate compressible Navier-Stokes equations with nonlinear viscosity coefficients depending on density, smooth solutions can develop finite-time implosions at the origin provided the viscosity power-law exponent falls below a specific threshold determined by the adiabatic exponent, a result proven through novel pointwise density estimates and weighted high-order energy methods that demonstrate the viscous terms are insufficient to suppress the convective implosion mechanism.

Gui-Qiang G. Chen, Lihui Liu, Shengguo ZhuThu, 12 Ma🔢 math-ph

The moduli space of dynamical spherically symmetric black hole spacetimes and the extremal threshold

This paper provides a complete local description of the moduli space of dynamical spherically symmetric black hole spacetimes near the Reissner-Nordström family, characterizing the black hole threshold as the extremal leaf of a C1C^1 foliation and establishing universal scaling laws with a critical exponent of $1/2$ alongside the activation of Aretakis instability for threshold solutions.

Yannis Angelopoulos, Christoph Kehle, Ryan UngerThu, 12 Ma⚛️ gr-qc

How inertia affects autotoxicity-mediated vegetation dynamics: from close-to to far-from-equilibrium patterns

This study investigates how inertial effects influence autotoxicity-mediated vegetation patterns on sloped arid terrains using a hyperbolic extension of the Klausmeier model, revealing that inertia acts as a destabilizing mechanism that enlarges the parameter range for uphill migrating bands, can induce hysteresis by reversing bifurcation regimes near onset, and increases pulse speeds in far-from-equilibrium conditions.

Giancarlo Consolo, Carmela Currò, Gabriele Grifò, Annalisa Iuorio, Giovanna Valenti, Frits VeermanThu, 12 Ma🌀 nlin

Equi-integrable approximation of Sobolev mappings between manifolds

This paper establishes that limits of sequences of smooth maps between compact Riemannian manifolds with equi-integrable W1,pW^{1, p}-Sobolev energy can always be strongly approximated by smooth maps, thereby extending Hang's density result to integer p2p \ge 2 and providing proofs for higher-order and fractional Sobolev spaces as well as cases governed by the Bethuel-Demengel-Colon-Hélein cohomological criterion.

Jean Van SchaftingenMon, 09 Ma🔢 math

Non-Monotone Traveling Waves of the Weak Competition Lotka-Volterra System

This paper establishes the existence of traveling wave solutions, including non-monotone waves and front-pulse waves, for the two-species weak competition Lotka-Volterra system across all wave speeds sss \geq s^*, with a rigorous proof for the critical speed case and the first-time demonstration of front-pulse waves in the critical weak competition regime.

Chiun-Chuan Chen, Ting-Yang Hsiao, Shun-Chieh WangMon, 09 Ma🔢 math