[Merged by Bors] - feat(RepresentationTheory/Homological/GroupHomology/LowDegree): API for n-cycles & n-boundaries for n = 1, 2#25882
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Thanks, very clean!
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Thanks! bors d+ |
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…or n-cycles & n-boundaries for n = 1, 2 (#25882) This PR is more API for low degree group homology, adding `cyclesₙ, boundariesₙ` for `n = 1, 2`, following the structure of `RepresentationTheory.Homological.GroupCohomology.LowDegree`. Co-authored-by: Amelia Livingston <al3717@ic.ac.uk> Co-authored-by: Amelia Livingston <40745104+101damnations@users.noreply.github.com>
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…or n-cycles & n-boundaries for n = 1, 2 (leanprover-community#25882) This PR is more API for low degree group homology, adding `cyclesₙ, boundariesₙ` for `n = 1, 2`, following the structure of `RepresentationTheory.Homological.GroupCohomology.LowDegree`. Co-authored-by: Amelia Livingston <al3717@ic.ac.uk> Co-authored-by: Amelia Livingston <40745104+101damnations@users.noreply.github.com>
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…or n-cycles & n-boundaries for n = 1, 2 (leanprover-community#25882) This PR is more API for low degree group homology, adding `cyclesₙ, boundariesₙ` for `n = 1, 2`, following the structure of `RepresentationTheory.Homological.GroupCohomology.LowDegree`. Co-authored-by: Amelia Livingston <al3717@ic.ac.uk> Co-authored-by: Amelia Livingston <40745104+101damnations@users.noreply.github.com>
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…or n-cycles & n-boundaries for n = 1, 2 (leanprover-community#25882) This PR is more API for low degree group homology, adding `cyclesₙ, boundariesₙ` for `n = 1, 2`, following the structure of `RepresentationTheory.Homological.GroupCohomology.LowDegree`. Co-authored-by: Amelia Livingston <al3717@ic.ac.uk> Co-authored-by: Amelia Livingston <40745104+101damnations@users.noreply.github.com>
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This PR is more API for low degree group homology, adding
cyclesₙ, boundariesₙforn = 1, 2, following the structure ofRepresentationTheory.Homological.GroupCohomology.LowDegree.Action.rhoaMonoidHominstead of a morphism inMonCat#21652Finsupp#21732Rep.diagonal k G (n + 1) ≅ Rep.free k G (Fin n → G)#21736This PR continues the work from #21755.
Original PR: #21755