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Free energy, widely used as a measure of turbulence intensity in weakly collisional plasmas, has been recently found to be a suitable basis to describe both linear and nonlinear growth in a wide class gyrokinetic systems. The simplicity…

Plasma Physics · Physics 2023-09-18 G. G. Plunk , P. Helander

In this paper we investigate the origin of the Balanced Viscosity solution concept for rate-independent evolution in the setting of a finite-dimensional space. Namely, given a family of dissipation potentials $(\Psi_n)_n$ with superlinear…

Analysis of PDEs · Mathematics 2017-10-17 Giovanni A. Bonaschi , Riccarda Rossi

For the large family of ARMA models with variable coefficients (TV-ARMA), either deterministic or stochastic, we provide an explicit and computationally tractable representation based on the general solution of the associated linear…

Statistics Theory · Mathematics 2021-10-13 M. Karanasos , A. Paraskevopoulos , T. Magdalinos , A. Canepa

P representation techniques, which have been very successful in quantum optics and in other fields, are also useful for general bosonic quantum dynamical many-body calculations such as Bose-Einstein condensation. We introduce a…

Quantum Physics · Physics 2009-11-07 P. Deuar , P. D. Drummond

We introduce a natural definition of $L^p$-convergence of maps, $p \ge 1$, in the case where the domain is a convergent sequence of measured metric space with respect to the measured Gromov-Hausdorff topology and the target is a…

Differential Geometry · Mathematics 2007-05-23 Kazuhiro Kuwae , Takashi Shioya

In a complete metric space equipped with a doubling measure supporting a $p$-Poincar\'e inequality, we prove sharp growth and integrability results for $p$-harmonic Green functions and their minimal $p$-weak upper gradients. We show that…

Analysis of PDEs · Mathematics 2023-10-05 Anders Björn , Jana Björn , Juha Lehrbäck

Given a family of locally Lipschitz vector fields $X(x)=(X_1(x),\dots,X_m(x))$ on $\mathbb{R}^n$, $m\leq n$, we study functionals depending on $X$. We prove an integral representation for local functionals with respect to $X$ and a result…

Analysis of PDEs · Mathematics 2020-05-20 Alberto Maione , Andrea Pinamonti , Francesco Serra Cassano

In this work, we demonstrate that a functional modeling the self-aggregation of stochastically distributed lipid molecules can be obtained as the $\Gamma$-limit of a family of discrete energies driven by a sequence of independent and…

Probability · Mathematics 2023-05-11 Luca Lussardi , Anderson Melchor Hernandez , Marco Morandotti

In recent years different explanations are provided for both an inflation and a recent acceleration in the expansion of the universe. In this Letter we show that a model of physical interest is the modification of general relativity with a…

High Energy Physics - Theory · Physics 2010-04-05 Ishwaree P. Neupane , Benedict M. N. Carter

The Heckman-Opdam hypergeometric functions of type BC extend classical Jacobi functions in one variable and include the spherical functions of non-compact Grassmann manifolds over the real, complex or quaternionic numbers. There are various…

Representation Theory · Mathematics 2014-02-25 Margit Rösler , Michael Voit

We prove an homogenization result, in terms of $\Gamma$-convergence, for energies concentrated on rectifiable lines in $\R^3$ without boundary. The main application of our result is in the context of dislocation lines in dimension $3$. The…

Analysis of PDEs · Mathematics 2023-04-25 Martino Fortuna , Adriana Garroni

In this paper, we study the global well-posedness of the Boltzmann equation within the $L_{v}^{p}L_{x}^{\infty}$ framework for soft potential models with angular cutoff in a periodic box $\mathbb{T}^3$. By using a time-involved weight…

Analysis of PDEs · Mathematics 2026-03-13 Jong-in Kim , Gyounghun Ko

Bulk-surface systems on evolving domains are studied. Such problems appear typically from modelling receptor-ligand dynamics in biological cells. Our first main result is the global existence and boundedness of solutions in all dimensions.…

Analysis of PDEs · Mathematics 2023-02-23 Diogo Caetano , Charles M. Elliott , Bao Quoc Tang

The energy dissipation law and the maximum bound principle (MBP) are two important physical features of the well-known Allen-Cahn equation. While some commonly-used first-order time stepping schemes have turned out to preserve…

Numerical Analysis · Mathematics 2022-03-10 Lili Ju , Xiao Li , Zhonghua Qiao

We provide integral representation and $\Gamma$-compactness results for anisotropic local functionals depending on arbitrary Lipschitz continuous vector fields. In particular, neither bracket-generating assumptions nor linear independence…

Analysis of PDEs · Mathematics 2024-02-20 Simone Verzellesi

This paper is devoted to proving a general invariant representation theorem for generators of general time interval backward stochastic differential equations, where the generator $g$ has a quadratic growth in the unknown variable $z$ and…

Probability · Mathematics 2021-11-12 Guangshuo Zhou , Fengjiao Du , Shengjun Fan

The goal of the present paper is to study the asymptotic behavior of solutions for the viscoelastic wave equation with variable exponents \[ u_{tt}-\Delta u+\int_0^tg(t-s)\Delta u(s)ds+a|u_t|^{m(x)-2}u_t=b|u|^{p(x)-2}u\] under…

Analysis of PDEs · Mathematics 2020-11-24 Menglan Liao , Bin Guo , Xiangyu Zhu

In the stationary case, atomistic interaction energies can be proved to $\Gamma$-converge to classical elasticity models in the simultaneous atomistic-to-continuum and linearization limit [19],[40]. The aim of this note is that of extending…

Analysis of PDEs · Mathematics 2024-01-29 Manuel Friedrich , Manuel Seitz , Ulisse Stefanelli

A homogenization result for a family of oscillating integral energies is presented, where the fields under consideration are subjected to first order linear differential constraints depending on the space variable x. The work is based on…

Analysis of PDEs · Mathematics 2016-05-27 Elisa Davoli , Irene Fonseca

This paper concerns the asymptotic behaviour of solutions of a linear convolution Volterra summation equation with an unbounded forcing term. In particular, we suppose the kernel is summable and ascribe growth bounds to the exogenous…

Dynamical Systems · Mathematics 2019-08-07 John A. D. Appleby , Denis D. Patterson
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