Zvonimir Tutek

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PURPOSE The aim of our retrospective study is to return confidence in primary suture (PS) procedure after common bile duct exploration (CBDE). The first CBDE was performed in 1884 using PS. T-tube drainage was introduced 10 years later, and PS procedure has been abandoned today. MATERIAL AND METHODS In the course of the last 25 years (1974-1999 period)(More)
In this paper we consider the linear elliptic equation of the second order in domains in Rn thin in n − k directions, 0 < k < n. We apply the Ansatz of the formal expansion method (with respect to the small parameter (thickness)) which implies the scaling of the loads in the equation that allows the reduction of the problem from dimension n to dimension k.(More)
In this paper, we develop overlapping Schwarz methods for a finite element discretization on linear elasticity. In order to make Schwarz methods scalable with respect to the number of subdomains, we add an appropriate coarse problem to the algorithms. The main purpose of this paper is to introduce and analyze a new coarse space for these methods. The(More)
The problem considered is the Stokes and Navier-Stokes flow through a system of two pipes in the gravity field; inside a vertical pipe there is a free heavy piston. Theoretical analysis, the existence and non-uniqueness of solution, has been completed recently by the authors. Here we present numerical analysis, using finite elements methods, of the(More)
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