نتایج جستجو برای: diffrential equation
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finite and boundary element methods have been used by many authors to solve mathematicalphysics problems. however, the coupling of these two methods happens to be more efficient as it combinestheir merits. in this paper, the mathematical analysis of the coupling of finite and boundary element methodsfor the helmholtz equation is presented.
semidiscrete finite element approximation of a hyperbolic type integro-differential equation is studied. the model problem is treated as the wave equation which is perturbed with a memory term. stability estimates are obtained for a slightly more general problem. these, based on energy method, are used to prove optimal order a priori error estimates.
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