Results 31 to 40 of about 1,466,157 (309)

Optimal Control Problem for Non-linear Degenerate Parabolic Variation Inequality: Solvability and Attainability Issues

open access: yesJournal of Optimization, Differential Equations and Their Applications, 2023
We investigate the optimal control problem with respect to coefficients of the degenerate parabolic variational inequality. Since problems of this type can have the Lavrentieff effect, we consider the optimal control problem in a class of so-called ...
Nina V. Kasimova   +2 more
doaj   +1 more source

Information modeling of the normal forms of logical functions in Maple system [PDF]

open access: yesITM Web of Conferences
The article discusses possible ways to use the Maple computer algebra system to obtain perfect conjunctive and disjunctive normal forms. Computer algebra systems make it possible to expand the possibilities for creating, applying and using mathematical ...
Olenev Aleksandr   +3 more
doaj   +1 more source

On differential approximations of difference schemes [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2021
The concept of the first differential approximation was introduced in the 1950s for the analysis of difference schemes by A. I. Zhukov  and then was used to study the quality of difference schemes approximating equations in partial derivatives.
Blinkov, Yuri Anatolievich   +2 more
doaj   +1 more source

Network version of the computer algebra system bergman [PDF]

open access: yesComputer Science Journal of Moldova, 2002
The article describes problems arising at presentation of the computer algebra system bergman in the Web, and their solution using client-server approach.
S. Cojocaru, A. Colesnicov, L. Malahova
doaj  

Information and logical transformations in Schaeffer and Pierce Bases in Maple [PDF]

open access: yesITM Web of Conferences
One of the tasks of synthesis and analysis of the functioning of combinational devices is the representation of a Boolean function in various bases. The absolute completeness of the use and implementation of various transformations of Boolean functions ...
Olenev Aleksandr   +3 more
doaj   +1 more source

A nilpotent quotient algorithm for L-presented groups [PDF]

open access: yes, 2007
The main part of this paper contains a description of a nilpotent quotient algorithm for L-presented groups and a report on applications of its implementation in the computer algebra system GAP.
Bartholdi, Laurent   +2 more
core   +1 more source

A Computer Algebra System for R: Macaulay2 and the m2r Package

open access: yesJournal of Statistical Software, 2020
Algebraic methods have a long history in statistics. Apart from the ubiquitous applications of linear algebra, the most visible manifestations of modern algebra in statistics are found in the young field of algebraic statistics, which brings tools from ...
David Kahle   +2 more
doaj   +1 more source

Implementation of the Adams method for solving ordinary differential equations in the Sage computer algebra system

open access: yesDiscrete and Continuous Models and Applied Computational Science, 2023
This work is devoted to the implementation and testing of the Adams method for solving ordinary differential equations in the Sage computer algebra system.
Mikhail D. Malykh, Polina S. Chusovitina
doaj   +1 more source

Redberry: a computer algebra system designed for tensor manipulation

open access: yes, 2015
In this paper we focus on the main aspects of computer-aided calculations with tensors and present a new computer algebra system Redberry which was specifically designed for algebraic tensor manipulation.
S. Poslavsky, D. Bolotin
semanticscholar   +1 more source

Some Remarks on Blowing-Ups in a Computer Algebra System [PDF]

open access: yesComputer Science Journal of Moldova, 2008
The aim of this short note is to provide detailed information on how to compute blowing ups in various settings by means of a computer algebra system. All examples are formulated using the system SINGULAR [5].
Anne Frühbis-Krüger
doaj  

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