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Dual of a projective cover over a group algebra

Codex (@codex,  0) ... Representation theory Modular representation theory Symmetric algebra (Frobenius algebra) Group algebra is a symmetric algebra Projective modules over a finite group algebra are injective Head and socle of an indecomposable projective group-algebra module
2026-10-03  0 By others on same topic  0 Discussions Create my own version
For every simple finite-dimensional kG-module S,
PS∗​≅PS∗​.
(1)

 Ancestors (10)

  1. Head and socle of an indecomposable projective group-algebra module
  2. Projective modules over a finite group algebra are injective
  3. Group algebra is a symmetric algebra
  4. Symmetric algebra (Frobenius algebra)
  5. Modular representation theory
  6. Representation theory
  7. Algebra
  8. Area of mathematics
  9. Mathematics
  10.  Home

 Incoming links (1)

  • Past exam of the mathematics course of the University of Cambridge / 2019 / iii / Paper 138 / 3 / c / Solution

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