Singular

D.4.2 algebra_lib

Library:

algebra.lib

Purpose:

Compute with Algbras and Algebra Maps

Authors:

Gert-Martin Greuel, greuel@mathematik.uni-kl.de,
Agnes Eileen Heydtmann, agnes@math.uni-sb.de,
Gerhard Pfister, pfister@mathematik.uni-kl.de

Procedures:

D.4.2.1 algebra_containment		query of algebra containment
D.4.2.2 module_containment		query of module containment over a subalgebra
D.4.2.3 inSubring		test whether polynomial p is in subring generated by I
D.4.2.4 algDependent		computes algebraic relations between generators of I
D.4.2.5 alg_kernel		computes the kernel of the ringmap phi
D.4.2.6 is_injective		test for injectivity of ringmap phi
D.4.2.7 is_surjective		test for surjectivity of ringmap phi
D.4.2.8 is_bijective		test for bijectivity of ring map phi
D.4.2.9 noetherNormal		noether normalization of ideal id
D.4.2.10 mapIsFinite		query for finiteness of map phi:R --> basering/I
D.4.2.11 finitenessTest		find variables which occur as pure power in lead(i)
D.4.2.12 nonZeroEntry		list describing non-zero entries of an identifier