a De Morgan algebra additionally satisfies x ∧ ¬x ≤ y ∨ ¬y, it is called a Kleene algebra. (This notion should not be confused with the other Kleene algebra...
10 KB (1,118 words) - 02:29, 4 May 2024
Polynômes et algèbre linéaire (in French). Paris: Vuibert. p. 180. Soit M un magma, noté multiplicativement. On nomme idempotent de M tout élément a de M tel...
22 KB (2,887 words) - 10:36, 12 March 2024
his books von Neumann Algebras (Algèbres de von Neumann ), Gauthier-Villars, Paris (1957); C*-Algebras (Les C*-Algèbres et leurs Representations ), Gauthier-Villars...
32 KB (2,236 words) - 17:06, 15 January 2024