Pavel Babikov

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A new approach to the construction of general persistent polyhierarchical classifications is proposed. It is based on implicit description of category polyhierarchy by a generating polyhierarchy of classification criteria. Similarly to existing approaches, the classification categories are defined by logical functions encoded by attributive expressions.(More)
The subject of this paper is the comparison of Direct and Iterative solvers in the Solution of large Finite Element Problems with MSC/NASTRAN. The results of such a comparison vary based on problem type and with new developments in both the direct and iterative solution techniques. This paper gives the current state of this comparison with MSC/NASTRAN(More)
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