2D Euler equations;
point voritices;
random initial conditions;
white noise;
DIFFERENTIAL-EQUATIONS;
VECTOR-FIELDS;
FLOWS;
INVARIANCE;
D O I:
10.1080/03605302.2018.1467448
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
The 2D Euler equations with random initial condition distributed as a certain Gaussian measure are considered. The theory developed by S. Albeverio and A.-B. Cruzeiro is revisited, following the approach of weak vorticity formulation. A solution is constructed as a limit of random point vortices. This allows to prove that it is also limit of L-vorticity solutions. The result is generalized to initial measures that have a continuous bounded density with respect to the original Gaussian measure.
机构:
Scuola Normale Super Pisa, Pisa, ItalyScuola Normale Super Pisa, Pisa, Italy
Flandoli, Franco
Luo, Dejun
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机构:
Chinese Acad Sci, Acad Math & Syst Sci, RCSDS, Beijing 100190, Peoples R China
Univ Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R ChinaScuola Normale Super Pisa, Pisa, Italy
机构:
Scuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, ItalyScuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, Italy
Flandoli, Franco
Grotto, Francesco
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机构:
Scuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, ItalyScuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, Italy
Grotto, Francesco
Luo, Dejun
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机构:
Chinese Acad Sci, Acad Math & Syst Sci, Key Lab RCSDS, Beijing 100190, Peoples R China
Univ Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R ChinaScuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, Italy
机构:
Univ Basel, Dept Math & Informat, CH-4051 Basel, SwitzerlandUniv Basel, Dept Math & Informat, CH-4051 Basel, Switzerland
Bohun, Anna
Bouchut, Francois
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机构:
Univ Paris Est, UPEM, UPEC, Lab Anal & Math Appl,CNRS,UMR 8050, F-77454 Marne La Vallee, FranceUniv Basel, Dept Math & Informat, CH-4051 Basel, Switzerland
Bouchut, Francois
Crippa, Gianluca
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机构:
Univ Basel, Dept Math & Informat, CH-4051 Basel, SwitzerlandUniv Basel, Dept Math & Informat, CH-4051 Basel, Switzerland