Download Algebraic and Algorithmic Aspects of Differential and by Moulay Barkatou, Thomas Cluzeau, Georg Regensburger, Markus PDF

By Moulay Barkatou, Thomas Cluzeau, Georg Regensburger, Markus Rosenkranz (eds.)

This e-book constitutes the complaints of the fifth foreign assembly on Algebraic and Algorithmic features of Differential and vital Operators, AADIOS 2012, held on the purposes of machine Algebra convention in Sofia, Bulgaria, on June 25-28, 2012. the complete of nine papers offered during this quantity includes 2 invited papers and seven commonplace papers which have been rigorously reviewed and chosen from thirteen submissions. the subjects of curiosity are: symbolic computation for operator algebras, factorization of differential/integral operators, linear boundary difficulties and green's operators, preliminary worth difficulties for differential equations, symbolic integration and differential galois idea, symbolic operator calculi, algorithmic D-module conception, rota-baxter algebra, differential algebra, in addition to discrete analogs and software program features of the above.

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Additional info for Algebraic and Algorithmic Aspects of Differential and Integral Operators: 5th International Meeting, AADIOS 2012, Held at the Applications of Computer Algebra Conference, ACA 2012, Sofia, Bulgaria, June 25-28, 2012, Selected and Invited Papers

Example text

Re)filtering beyond PBW Algebras. . . . . . . . . . . . . 6 Appendix on Computer Algebra Systems(by V. Levandovskyy) . . . 1 Functionality of Systems for D[x; σ, δ] . . . . . . . . . . . . 2 Functionality of Systems for Multivariate Ore Algebras . . . . . 3 Functionality of Systems for PBW Algebras . . . . . . . . . General PBW Algebras. . . . . . . . . . . . . . . . . . . 4 Special PBW Algebras.

Tn . Let F be an algebra of functions containing A such that the partial derivatives ∂i = ∂t∂ i “make sense” on F . Consider R the subring of EndC (F ) generated by A and ∂1 , . . , ∂n . So, every element of R is a linear differential operator with polynomial coefficients acting on F (this is the n-th complex Weyl algebra). ) and any other pair among the ti ’s and ∂j ’s commute. An interpretation from the point of view of the theory of differential equations of the membership problem here is to know whether a given linear differential equation in a system can be dropped because it is “linearly dependent” of the rest.

Remarks on Homological Computations. . . . . . . . . . . . 5 Gelfand-Kirillov Dimension for Modules over PBW Algebras . . . . 1 Filtered Algebras and the Gelfand-Kirillov Dimension . . . . . Growth degree. . . . . . . . . . . . . . . . . . . . . . Filtrations and Gelfand-Kirillov dimension. . . . . . . . . . 2 PBW Algebras and Filtrations . . . . . . . . . . . . . . . From Filtrations to Quantum Relations.

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