Exercises in Classical Ring TheorySpringer-Verlag, 1995 - 287 pages |
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Page 69
... irreducible module : an irreducible ( left ) R - module M is said to be absolutely irreducible if MK = MR K remains irreducible over RK for any field extension K / k . ( An equivalent condition is that End ( RM ) = k : see FC- ( 7.5 ) ...
... irreducible module : an irreducible ( left ) R - module M is said to be absolutely irreducible if MK = MR K remains irreducible over RK for any field extension K / k . ( An equivalent condition is that End ( RM ) = k : see FC- ( 7.5 ) ...
Page 91
... irreducible CG - modules constructed in FC - p.141 . The 4 - dimensional and 5 - dimensional irreducible C - representations both come from irreducible R - modules . Therefore , we have R = Q × M1 ( Q ) × M5 ( Q ) × S where S is the ...
... irreducible CG - modules constructed in FC - p.141 . The 4 - dimensional and 5 - dimensional irreducible C - representations both come from irreducible R - modules . Therefore , we have R = Q × M1 ( Q ) × M5 ( Q ) × S where S is the ...
Page 230
... irreducible , although , in the case of a semiprime ring R , these two notions do coincide , and they both amount to ... irreducible , show that Ve is either zero or is irreducible as an eRe - module . ( 3 ) Show that for any irreducible ...
... irreducible , although , in the case of a semiprime ring R , these two notions do coincide , and they both amount to ... irreducible , show that Ve is either zero or is irreducible as an eRe - module . ( 3 ) Show that for any irreducible ...
Table des matières
2 Semisimplicity | 16 |
Jacobson Radical Theory 35 1981 | 35 |
6 Group rings and the Jsemisimplicity problem | 57 |
Droits d'auteur | |
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a₁ abelian artinian ring assume automorphism B₁ central idempotents char commutative ring conjugate consider constructed contradiction decomposition Dedekind-finite defined division ring domain element endomorphism equation Exercise exists fact finite group finite-dimensional follows group G hopfian idempotent identity implies indecomposable integer inverse irreducible isomorphism J-semisimple Jacobson radical k-algebra kG-module left ideal left primitive ring Lemma Let G linear local ring M₁ matrix maximal ideal maximal left ideal maximal subfield minimal left module multiplication Neumann regular ring nil ideal nilpotent ideal noetherian ring noncommutative nonzero polynomial prime ideal primitive idempotents primitive rings proof prove quasi-regular R-module R/rad rad kG representation resp right ideal right R-module ring theory semilocal ring semiprime semisimple ring show that rad simple left R-module simple ring soc(RR Solution stable range strongly regular subdirect product subgroup subring Theorem unit-regular zero