Hossein Shodjai Tehrani

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We use a method recently devised by Bolle B] to establish the existence of an innnite number of solutions for various non-homogeneous boundary value problems. In particular, we consider second order systems, Hamiltonian systems as well as semi-linear partial diierential equations. The non-homogeneity can originate in the equation but also from the boundary(More)
INTRODUCTION Depression is a well known health problem worldwide. Prevalence of depressive disorders varies in different societies. AIM to determine the prevalence of depressive disorders and some associated factors in Rasht City (Northern part of Iran). MATERIALS AND METHODS 4020 subjects were selected among 394925 residents of Rasht aged between 18-70(More)
Process planning and scheduling are important manufacturing planning activities which deal with resource utilization and time span of manufacturing operations. The process plans and the schedules generated in the planning phase shall be modified in the execution phase due to the disturbances in the manufacturing systems. This paper deals with a multi-agent(More)
We consider a class of nonlinear problems of the form Lu + g(x, u) = f, where L is an unbounded self-adjoint operator on a Hilbert space H of L 2 (Ω)-functions, Ω ⊂ R N an arbitrary domain, and g: Ω × R → R is a " jumping nonlinearity " in the sense that the limits lim s→−∞ g(x, s) s = a and lim s→∞ g(x, s) s = b exist and " jump " over an eigenvalue of the(More)
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