Zobrazeno 1 - 10
of 929
pro vyhledávání: '"Magnanini, P"'
We study hydrodynamic limits of the cluster coagulation model; a coagulation model introduced by Norris [$\textit{Comm. Math. Phys.}$, 209(2):407-435 (2000)]. In this process, pairs of particles $x,y$ in a measure space $E$, merge to form a single ne
Externí odkaz:
http://arxiv.org/abs/2406.12401
We consider an Erd\H{o}s-R\'enyi random graph, conditioned on the rare event that all connected components are fully connected. Such graphs can be considered as partitions of vertices into cliques. Hence, this conditional distribution defines a distr
Externí odkaz:
http://arxiv.org/abs/2405.13454
Autor:
Magnanini, Elena, Passuello, Giacomo
We consider the edge-triangle model (or Strauss model), and focus on the asymptotic behavior of the triangle density when the size of the graph increases to infinity. This random graph belongs to the class of exponential random graphs, which follows
Externí odkaz:
http://arxiv.org/abs/2404.10106
We prove a new general differential identity and an associated integral identity, which entails a pair of solutions of the Poisson equation with constant source term. This generalizes a formula that the first and third authors previously proved and u
Externí odkaz:
http://arxiv.org/abs/2402.02845
We consider the problem of gelation in the cluster coagulation model introduced by Norris [$\textit{Comm. Math. Phys.}$, 209(2):407-435 (2000)], where pairs of clusters of types $(x,y)$ taking values in a measure space $E$, merge to form a new partic
Externí odkaz:
http://arxiv.org/abs/2308.10232
Publikováno v:
A&A 677, A42 (2023)
The upcoming JUICE and Europa Clipper missions to Jupiter's Galilean satellites will provide radio science tracking measurements of both spacecraft. Such data are expected to significantly help estimating the moons' ephemerides and related dynamical
Externí odkaz:
http://arxiv.org/abs/2307.15966
Starting from a characterization of holomorphic functions in terms of a suitable mean value property, we build some nonlinear asymptotic characterizations for complex-valued solutions of certain nonlinear systems, which have to do with the classical
Externí odkaz:
http://arxiv.org/abs/2306.08437
We prove an existence result for the Backus interior problem in the Euclidean ball. The problem consists in determining a harmonic function in the ball from the knowledge of the modulus of its gradient on the boundary. The problem is severely nonline
Externí odkaz:
http://arxiv.org/abs/2212.00413
Autor:
Magnanini, Rolando, Poggesi, Giorgio
We consider a mixed boundary value problem in a domain $\Omega$ contained in a half-ball $B_+$ and having a portion $\bar{T}$ of its boundary in common with the curved part of $\partial B_+$. The problem has to do with some sort of constrained torsio
Externí odkaz:
http://arxiv.org/abs/2210.10288
Autor:
Magnanini, Rolando
We present a method to obtain explicit solutions of the complex eikonal equation in the plane. This equation arises in the approximation of Helmholtz equation by the WKBJ or EWT methods. We obtain the complex-valued solutions (called eikonals) as par
Externí odkaz:
http://arxiv.org/abs/2111.10852