Opened 5 months ago

Closed 3 months ago

#15462 closed defect (fixed)

Fix phi for general tensor product of crystals

Reported by: tscrim Owned by: sage-combinat
Priority: major Milestone: sage-6.1
Component: combinatorics Keywords: crystals
Cc: sage-combinat, aschilling, bsalisbury1 Merged in:
Authors: Travis Scrimshaw Reviewers: Ben Salisbury
Report Upstream: N/A Work issues:
Branch: public/combinat/crystals/fix_phi_tensor_product (Commits) Commit: 21936dc525507c966901da2a09c3f2c1f8eb6035
Dependencies: Stopgaps:

Description

When not working with regular crystals, one gets an infinite recursion when calling phi:

sage: B = CrystalOfTableaux(['A',2], shape=[2,1])
sage: La = RootSystem(['A',2]).ambient_space().fundamental_weights()
sage: T = TensorProductOfCrystals(TCrystal(['A',2], La[1]+La[2]), B)
sage: t = T.an_element()
sage: t.phi(1)

Change History (6)

comment:1 Changed 5 months ago by tscrim

  • Branch set to public/combinat/crystals/fix_phi_tensor_product
  • Commit set to d1be40614e3a35a7f475f20eb6e7b2296abf994e
  • Status changed from new to needs_review

New commits:

d1be406Fix for phi in tensor_product.py

comment:2 Changed 5 months ago by tscrim

We weren't iterating over the correct values for calling _sig().

comment:3 Changed 4 months ago by vbraun_spam

  • Milestone changed from sage-6.0 to sage-6.1

comment:4 Changed 3 months ago by git

  • Commit changed from d1be40614e3a35a7f475f20eb6e7b2296abf994e to 21936dc525507c966901da2a09c3f2c1f8eb6035

Branch pushed to git repo; I updated commit sha1. New commits:

073f17eMerge branch 'develop' into public/combinat/crystals/fix_phi_tensor_product
6651ce1Merge branch 'develop' into public/combinat/crystals/fix_phi_tensor_product
21936dcMerge branch 'develop' into public/combinat/crystals/fix_phi_tensor_product

comment:5 Changed 3 months ago by bsalisbury1

  • Reviewers set to Ben Salisbury
  • Status changed from needs_review to positive_review

comment:6 Changed 3 months ago by vbraun

  • Resolution set to fixed
  • Status changed from positive_review to closed
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