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calg:dubna07:abstracts [03/062007 18:08] kryukov |
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==== About one approach for constructing parallel computer algebra ==== | ==== About one approach for constructing parallel computer algebra ==== | ||
- | ** G.I.Malaschonok, Yu.D.Valeev</strong> (Tambov State University)** | + | ** G.I.Malaschonok, Yu.D.Valeev (Tambov State University)** |
We discuss one approach for constructing a parallel computer algebra. The base of this approach is a "temporal" tree algorithm, which is represented by the weighted tree. Data is passed through the edges of a graph, computational procedures are allocated in the vertexes of the graph and the weights of the edges denote the order of the priority of data which passes through these edges. | We discuss one approach for constructing a parallel computer algebra. The base of this approach is a "temporal" tree algorithm, which is represented by the weighted tree. Data is passed through the edges of a graph, computational procedures are allocated in the vertexes of the graph and the weights of the edges denote the order of the priority of data which passes through these edges. | ||
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==== The Homogeneous Groebner Basis for the SU(3)-gauge Mechanics ==== | ==== The Homogeneous Groebner Basis for the SU(3)-gauge Mechanics ==== | ||
- | **V.Gerdt, A. Khvedelidze, Yu.Palii </strong>(JINR, Dubna)** | + | **V.Gerdt, A. Khvedelidze, Yu.Palii (JINR, Dubna)** |
The Groebner bases techniques is applied to the analysis of the so-called Yang-Mills mechanics, which is the degenerate | The Groebner bases techniques is applied to the analysis of the so-called Yang-Mills mechanics, which is the degenerate | ||
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**Skorokhodov S.L. (Computing Centre of RAS)** | **Skorokhodov S.L. (Computing Centre of RAS)** | ||
- | We study the Orr-Sommerfeld equation for the Couette flow in a channel. A new efficient method for computation eigenvalues $\lambda_n$ was elaborated for the large Reynolds numbers R >> 1. Using the system Maple and numerical evaluations we find, that the eigenvalues $\lambda_n$ have denumerable number of branch points $R_k > 1$ at which the eigenvalues $\lambda_n$ with two different numbers $n_1$ and $n_2$ form the double eigenvalues. | + | We study the Orr-Sommerfeld equation for the Couette flow in a channel. A new efficient method for computation eigenvalues $\lambda_n$ was elaborated for the large Reynolds numbers R >> 1. Using the system Maple and numerical evaluations we find, that the eigenvalues $\lambda_n$ have denumerable number of branch points $R_k > 1$ at which the eigenvalues $\lambda_n$ with two different numbers $n_1$ and $n_2$ form the double eigenvalues. |
==== Branching of the eigenvalues for the Coulomb spheroidal wave equation ==== | ==== Branching of the eigenvalues for the Coulomb spheroidal wave equation ==== |