Titlebook: Computer Algebra in Scientific Computing; 21st International W Matthew England,Wolfram Koepf,Evgenii V. Vorozhtso Conference proceedings 20

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On Characteristic Decomposition and Quasi-characteristic Decomposition,on when the variable ordering condition is always satisfied, otherwise it degenerates to compute the quasi one. Some properties of quasi-characteristic pairs and decomposition are proved, and examples are given to illustrate the algorithm.

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Symbolic Investigation of the Dynamics of a System of Two Connected Bodies Moving Along a Circular ves in the space of system parameters that determine boundaries of domains with a fixed number of equilibria of the two–body system were obtained symbolically. Depending on the parameters of the problem, the number of equilibria was found by analyzing the real roots of the algebraic equations.

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Root-Finding with Implicit Deflation,nd reversion of an input polynomial. We also show another unexplored direction for substantial further progress in this long and extensively studied area. Namely we dramatically increase the local efficiency of root-finding by means of the incorporation of fast algorithms for multipoint polynomial evaluation and Fast Multipole Method.

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0302-9743 eld in Moscow, Russia, in August 2019..The 28 full papers presented together with 2 invited talks were carefully reviewed and selected from 44 submissions. They deal with cutting-edge research in all major disciplines of computer algebra. The papers cover topics such as polynomial algebra, symbolic

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Felix L. Schwenninger,Marcus Waurickng those of the third kind, thereby providing a conceptual basis for their exploration and exact evaluation, bypassing typical troubles of common software in calculating CEI. Detailed clarifying examples are provided.

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BOGUS

An Arithmetic-Geometric Mean of a Third Kind!,ng those of the third kind, thereby providing a conceptual basis for their exploration and exact evaluation, bypassing typical troubles of common software in calculating CEI. Detailed clarifying examples are provided.