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Mechanics
An optimal system constructing algorithm for symmetry algebra of three-dimensional equations of the perfect plasticity
V. A. Kovaleva, Yu. N. Radayevb a Moscow City Government University of Management, Chair of Applied Mathematics
b Institute for Problems in Mechanics RAS, Moscow
Abstract:
The present study is devoted to study of a natural 12-dimensional symmetry algebra of the three-dimensional hyperbolic differential equations of the perfect plasticity, obtained by D. D. Ivlev in 1959 and formulated in isostatic co-ordinate net. An optimal system of one-dimensional subalgebras constructing algorithm for the Lie algebra is proposed. The optimal system (total 187 elements) is shown consist of a 3-parametrical element, twelve 2-parametrical elements, sixty six 1-parametrical elements and one hundred and eight individual elements.
Key words:
theory of plasticity, isostatic co-ordinate, symmetry group, symmetry algebra, subalgebra, optimal system, algorithm.
Citation:
V. A. Kovalev, Yu. N. Radayev, “An optimal system constructing algorithm for symmetry algebra of three-dimensional equations of the perfect plasticity”, Izv. Saratov Univ. Math. Mech. Inform., 11:2 (2011), 61–77
Linking options:
https://www.mathnet.ru/eng/isu220 https://www.mathnet.ru/eng/isu/v11/i2/p61
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Abstract page: | 310 | Full-text PDF : | 98 | References: | 46 | First page: | 1 |
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