algebra, a module M over a ring R is called torsionless if it can be embedded into some direct product RI. Equivalently, M is torsionless if each non-zero...
5 KB (658 words) - 10:48, 9 February 2024
a module over k[x, y]. Any torsionless module over a domain is a torsion-free module, but the converse is not true, as Q is a torsion-free Z-module that...
4 KB (597 words) - 13:20, 10 November 2024
R-modules preserves exactness. Torsionless A module is called torsionless if it embeds into its algebraic dual. Simple A simple module S is a module that...
22 KB (2,966 words) - 06:20, 18 October 2024
is one for which the canonical homomorphism is an isomorphism. A torsionless module is one for which the canonical homomorphism is injective. Example:...
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to a dual module. There is still a canonical evaluation map, but it is not always injective; if it is, this is known as a torsionless module; if it is...
53 KB (6,694 words) - 18:05, 11 November 2024
topological module Tor Tor functor torsion-free torsion-free module torsionless torsionless module uniform A uniform module is a module in which every...
20 KB (2,611 words) - 13:40, 22 July 2024
(dualizing sheaf) on a normal projective variety is a divisorial sheaf. Torsionless module Torsion sheaf Twisted sheaf Hartshorne 1980, Corollary 1.2. Hartshorne...
3 KB (399 words) - 23:08, 12 August 2023
functors of the tensor product. 6. A torsionless module is a module isomorphic to a submodule of a free module. total The total ring of fractions or...
66 KB (9,767 words) - 00:23, 7 July 2024
torsion-free R-module is flat. Every torsionless R-module is flat. Every ideal of R is flat Every overring of R is R-flat Every submodule of a flat R-module is flat...
12 KB (1,451 words) - 07:05, 29 January 2024