An Algorithm to Compute the Kernel of a Derivation up to a Certain Degree
β Scribed by Stefan Maubach
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 303 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0747-7171
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π SIMILAR VOLUMES
We describe an algorithm which computes the invariants of all \(G_{a}\)-actions on affine varieties, in case the invariant ring is finitely generated. The algorithm is based on a study of the kernel of a locally nilpotent derivation and some algoritlums from the theory of GrΓΆbner bases.
In this paper we discuss a recursive divide and conquer algorithm to compute the inverse of an unreduced tridiagonal matrix. It is based on the recursive application of the Sherman Morrison formula to a diagonally dominant tridiagonal matrix to avoid numerical stability problems. A theoretical study