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Identifying the coefficient of first-order in parabolic equation from final measurement data

Deng, Zui-Cha; Yu, Jian-Ning; Yang, Liu - In: Mathematics and Computers in Simulation (MATCOM) 77 (2008) 4, pp. 421-435

transformed into an optimal control problem by the optimization theory. The existence, uniqueness and necessary condition of the …

Persistent link: https://www.econbiz.de/10010870569

Some generalized results for global well-poseness for wave equations with damping and source terms

Xu, Runzhang; Shen, Jihong - In: Mathematics and Computers in Simulation (MATCOM) 80 (2009) 4, pp. 804-807

In this paper we study the initial boundary value problem of wave equations with nonlinear damping and source terms:utt−Δu+a|ut|m−1ut=b|u|p−1u,x∈Ω,t0,u(x,0)=u0(x),ut(x,0)=u1(x),x∈Ω,u(x,t)=0,x∈∂Ω,t≥0,where Ω⊂RN is a suitably smooth bounded domain. We prove that for any a0...

Persistent link: https://www.econbiz.de/10011050485

General equilibrium analysis on arms exports to developing countries in conflict

Fukiharu, T. - In: Mathematics and Computers in Simulation (MATCOM) 68 (2005) 5, pp. 439-448

the decline of pM on the “existence” of solution to the game, its “stability”, and finally on the utility levels of two … countries in the “stability” case. By simulation we show that as pM falls, the number of “non-existence” cases increases, the … percentage of “instability” cases among “existence” cases rises, and finally as pM falls, the percentage of “rising utility …

Persistent link: https://www.econbiz.de/10011050903

Wave equations with super-critical interior and boundary nonlinearities

Bociu, Lorena; Rammaha, Mohammad; Toundykov, Daniel - In: Mathematics and Computers in Simulation (MATCOM) 82 (2012) 6, pp. 1017-1029

theorems include Hadamard local wellposedness, global existence, blow-up and non-existence theorems, as well as estimates on …

Persistent link: https://www.econbiz.de/10011051030