Zobrazeno 1 - 10 of 43 pro vyhledávání: '"Enza Orlandi"'
1
Spectral properties of integral operators in bounded, large intervals
Autor: Enza Orlandi, Carlangelo Liverani
We study the spectrum of one dimensional integral operators in bounded real intervals of length $2L$, for value of $L$ large. The integral operators are obtained by linearizing a non local evolution equation for a non conserved order parameter descri
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77a700f8cba197998c29898056064647
http://hdl.handle.net/2108/173863
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3
Unique minimizer for a random functional with double-well potential in dimension 1 and 2
Autor: Nicolas Dirr, Enza Orlandi
Publikováno v: Scopus-Elsevier
We add a random bulk term, modelling the interaction with the impurities of the medium, to a standard functional in the gradient theory of phase transitions consisting of a gradient term with a double well potential. We show that in d � 2 there exi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0dea7c0b8a45ed3d6ed17f1f6d8587b8
https://doi.org/10.4310/cms.2011.v9.n2.a1
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4
Large deviations from a macroscopic scaling limit for particle systems with Kac interaction and random potential☆
Autor: Mustapha Mourragui, Enza Orlandi
Publikováno v: Annales de l'Institut Henri Poincare (B) Probability and Statistics. 43:677-715
We consider a lattice gas in a periodic d-dimensional lattice of width γ −1 , γ > 0 , interacting via a Kac's type interaction, with range 1 γ and strength γ d , and under the influence of a random one body potential given by independent, bound
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::db68f297b074cd9ec9d53160e55a101d
https://doi.org/10.1016/j.anihpb.2006.09.008
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5
Uniqueness of the minimizer for a random non-local functional with double-well potential in d⩽2
Autor: Nicolas Dirr, Enza Orlandi
We consider a small random perturbation of the energy functional [u]Hs(Λ,Rd)2+∫ΛW(u(x))dx for s∈(0,1), where the non-local part [u]Hs(Λ,Rd)2 denotes the total contribution from Λ⊂Rd in the Hs(Rd) Gagliardo semi-norm of u and W is a double w
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8324c54b074e6befe93ad1fa55a40d95
https://orca.cardiff.ac.uk/id/eprint/67301/1/DOE.pdf
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6
A simple fluctuation lower bound for a disordered massless random continuous spin model in D=2
Autor: Enza Orlandi, Christof Kuelske
Publikováno v: Ruhr-Universität Bochum
Electronic communications in probability, 11, 200-205. UNIV WASHINGTON, DEPT MATHEMATICS
Electron. Commun. Probab. 11 (2006), 200-205
We prove a finite volume lower bound of the order of the squareroot of log N on the delocalization of a disordered continuous spin model (resp. effective interface model) in d = 2 in a box of size N . The interaction is assumed to be massless, possib
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d876d77470af52e0bfd466ebcc406413
https://hdl.handle.net/11370/3e4a02dc-f30a-4187-835c-ca8cd68d9d1a
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7
Approximate Solutions of the Cahn-Hilliard Equation via Corrections to the Mullins-Sekerka Motion
Autor: Enza Orlandi, M. C. Carvalho, Eric A. Carlen
Publikováno v: Archive for Rational Mechanics and Analysis. 178:1-55
We develop an alternative method to matched asymptotic expansions for the construction of approximate solutions of the Cahn-Hilliard equation suitable for the study of its sharp interface limit. The method is based on the Hilbert expansion used in ki
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0dd2d11a431f88fcd62b63e34c56fdd
https://doi.org/10.1007/s00205-005-0366-5
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8
Macroscopic evolution of particle systems with random field Kac interactions*
Autor: Enza Orlandi, Ellen Saada, Mustapha Mourragui
Publikováno v: Nonlinearity. 16:2123-2147
We consider a lattice gas interacting via a Kac interaction Jγ(|x−y|) of range γ−1, γ>0, x,yd and under the influence of an external random field given by independent bounded random variables with a translation invariant distribution. We study
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b34087adc484e5126a5f4ca33114ac29
https://doi.org/10.1088/0951-7715/16/6/315
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9
The optimal interface profile for a non-local model of phase separation*
Autor: Marzio Cassandro, Enza Orlandi, Pierre Picco
Publikováno v: Nonlinearity. 15:1621-1651
We consider a non-local excess free energy functional, which arises in the description of the continuum limit of Ising spin system with Kac interaction and external random magnetic field. We study the functional for values of the parameters in the ph
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https://doi.org/10.1088/0951-7715/15/5/314
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10
A Simple Proof of Stability of Fronts¶for the Cahn–Hilliard Equation
Autor: M. C. Carvalho, Enza Orlandi, Eric A. Carlen
Publikováno v: Communications in Mathematical Physics. 224:323-340
We apply a method developed in our earlier work on a non-local phase kinetics equation to give a simple proof of the non-linear stability of fronts for the Cahn–Hilliard equation.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5811ee0b3659ae9a3538fd08a3844ccd
https://doi.org/10.1007/s002200100532
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