scholarly journals On the vanishing viscosity approximation to the Cauchy problem for a 2×2 system of conservation laws

Author(s):  
Bruno Rubino
Author(s):  
Debora Amadori ◽  
Graziano Guerra

We consider the Cauchy problem for the (strictly hyperbolic, genuinely nonlinear) system of conservation laws with relaxation Assume there exists an equilibrium curve A(u), such that r(u,A(u)) = 0. Under some assumptions on σ and r, we prove the existence of global (in time) solutions of bounded variation, uε, υε, for ε > 0 fixed.As ε → 0, we prove the convergence of a subsequence of uε, υε to some u, υ that satisfy the equilibrium equations


2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
Ming Ren ◽  
Shiwei Yun ◽  
Zhenping Li

AbstractIn this paper, we apply a reliable combination of maximum modulus method with respect to the Schrödinger operator and Phragmén–Lindelöf method to investigate nonlinear conservation laws for the Schrödinger boundary value problems of second order. As an application, we prove the global existence to the solution for the Cauchy problem of the semilinear Schrödinger equation. The results reveal that this method is effective and simple.


1999 ◽  
Vol 151 (2) ◽  
pp. 345-372 ◽  
Author(s):  
D. Amadori ◽  
P. Baiti ◽  
P.G. LeFloch ◽  
B. Piccoli

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