On the existence of weak solutions to the steady compressible Navier-Stokes equations when the density is not square integrable
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Novo, S
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Univ Toulon & Var, Lab Anal Non Lineaire Appl & Modelisat, F-83957 La Garde, FranceUniv Toulon & Var, Lab Anal Non Lineaire Appl & Modelisat, F-83957 La Garde, France
Novo, S
[1
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Novotny, A
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Univ Toulon & Var, Lab Anal Non Lineaire Appl & Modelisat, F-83957 La Garde, FranceUniv Toulon & Var, Lab Anal Non Lineaire Appl & Modelisat, F-83957 La Garde, France
Novotny, A
[1
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机构:
[1] Univ Toulon & Var, Lab Anal Non Lineaire Appl & Modelisat, F-83957 La Garde, France
We consider the steady compressible Navier-Stokes equations in the isentropic regime in a bounded domain of R-3. We show that the renormalized continuity equation holds even if the density is not square integrable. We use this result to prove existence of weak solutions under the sole hypothesis gamma > 3/2 for the adiabatic constant.
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Huaqiao Univ, Sch Math Sci, Quanzhou 362021, Peoples R China
Xiamen Univ, Sch Math, Xiamen 361005, Peoples R ChinaHuaqiao Univ, Sch Math Sci, Quanzhou 362021, Peoples R China
Zhang, Peixin
Zhao, Junning
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Xiamen Univ, Sch Math Sci, Xiamen 361005, Peoples R ChinaHuaqiao Univ, Sch Math Sci, Quanzhou 362021, Peoples R China
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Southern Univ Sci & Technol, Dept Math, Shenzhen 518055, Guangdong, Peoples R ChinaFudan Univ, Sch Math Sci, Shanghai 200433, Peoples R China
Lyu, W. E. N. Q., I
Weng, S. H. A. N. G. K. U. N.
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Wuhan Univ, Sch Math & Stat, Wuhan 430072, Hubei, Peoples R China
Wuhan Univ, Computat Sci Hubei Key Lab, Wuhan 430072, Hubei, Peoples R ChinaFudan Univ, Sch Math Sci, Shanghai 200433, Peoples R China