English

Computation of Minimal Filtered Free Resolutions over $\mathbb{N}$-Filtered Solvable Polynomial Algebras

Rings and Algebras 2014-01-23 v1

Abstract

Let A=K[a1,,an]A=K[a_1,\ldots,a_n] be a weighted N\mathbb{N}-filtered solvable polynomial algebra with filtration FA={FpA}pNFA=\{ F_pA\}_{p\in\mathbb{N}}, where solvable polynomial algebras are in the sense of (A. Kandri-Rody and V. Weispfenning, Non-commutative Gr\"obner bases in algebras of solvable type. {\it J. Symbolic Comput.}, 9(1990), 1--26), and FAFA is constructed with respect to a positive-degree function d( )d(~) on AA. By introducing minimal F-bases and minimal standard bases respectively for left AA-modules and their submodules with respect to good filtrations, minimal filtered free resolutions for finitely generated AA-modules are introduced. It is shown that any two minimal F-bases, respectively any two minimal standard bases have the same number of elements and the same number of elements of the same filtered degree; that minimal filtered free resolutions are unique up to strict filtered isomorphism of chain complexes in the category of filtered AA-modules; and that minimal finite filtered free resolutions can be algorithmically computed by employing Gr\"obner basis theory for modules over AA with respect to any graded left monomial ordering on free left AA-modules.

Keywords

Cite

@article{arxiv.1401.5464,
  title  = {Computation of Minimal Filtered Free Resolutions over $\mathbb{N}$-Filtered Solvable Polynomial Algebras},
  author = {Huishi Li},
  journal= {arXiv preprint arXiv:1401.5464},
  year   = {2014}
}

Comments

37 pages. arXiv admin note: text overlap with arXiv:1401.5206