Opened 3 years ago

Closed 3 years ago

#19133 closed enhancement (fixed)

Three Witt-based strongly regular graphs

Reported by: ncohen Owned by:
Priority: major Milestone: sage-6.9
Component: graph theory Keywords:
Cc: dimpase Merged in:
Authors: Nathann Cohen Reviewers: Dima Pasechnik
Report Upstream: N/A Work issues:
Branch: 3bc31a1 (Commits) Commit: 3bc31a1b7e08f4e57f325ce7d386ca0af36695e6
Dependencies: Stopgaps:

Description

This ticket adds three new strongly regular graphs, and a useful method to Incidence Structures.

Nathann

Change History (9)

comment:1 Changed 3 years ago by ncohen

  • Branch set to public/19133
  • Status changed from new to needs_review

comment:2 Changed 3 years ago by git

  • Commit set to ac6634b03ab1cfec19d55904b410b9baea22d5d5

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

​ac6634btrac #19133: Three Witt-based strongly regular graphs

comment:3 Changed 3 years ago by git

  • Commit changed from ac6634b03ab1cfec19d55904b410b9baea22d5d5 to 302e6bcfe8581491033aebbae7fcb7aae42a55b9

Branch pushed to git repo; I updated commit sha1. This was a forced push. New commits:

​302e6bctrac #19133: Three Witt-based strongly regular graphs

comment:4 Changed 3 years ago by dimpase

  • Reviewers set to Dima Pasechnik
  • Status changed from needs_review to positive_review

no objection

comment:5 Changed 3 years ago by ncohen

Thaaaaaaanks !

comment:6 Changed 3 years ago by vbraun

  • Status changed from positive_review to needs_work 
**********************************************************************
File "src/sage/graphs/strongly_regular_db.pyx", line 783, in sage.graphs.strongly_regular_db.SRG_253_140_87_65
Failed example:
    G = SRG_253_140_87_65()
Exception raised:
    Traceback (most recent call last):
      File "/mnt/disk/home/release/Sage/local/lib/python2.7/site-packages/sage/doctest/forker.py", line 496, in _run
        self.compile_and_execute(example, compiler, test.globs)
      File "/mnt/disk/home/release/Sage/local/lib/python2.7/site-packages/sage/doctest/forker.py", line 858, in compile_and_execute
        exec(compiled, globs)
      File "<doctest sage.graphs.strongly_regular_db.SRG_253_140_87_65[1]>", line 1, in <module>
        G = SRG_253_140_87_65()
      File "sage/graphs/strongly_regular_db.pyx", line 789, in sage.graphs.strongly_regular_db.SRG_253_140_87_65 (build/cythonized/sage/graphs/strongly_regular_db.c:12499)
        W = WittDesign(23)
      File "/mnt/disk/home/release/Sage/local/lib/python2.7/site-packages/sage/combinat/designs/block_design.py", line 790, in WittDesign
        gap.load_package("design")
      File "/mnt/disk/home/release/Sage/local/lib/python2.7/site-packages/sage/interfaces/gap.py", line 507, in load_package
        "You may want to install the gap_packages and/or database_gap SPKGs.")
    RuntimeError: Error loading Gap package design. You may want to install the gap_packages and/or database_gap SPKGs.

comment:7 Changed 3 years ago by git

  • Commit changed from 302e6bcfe8581491033aebbae7fcb7aae42a55b9 to 3bc31a1b7e08f4e57f325ce7d386ca0af36695e6

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

​6c0c890trac #19133: Merged with 6.9.beta5
​3bc31a1trac #19133: Broken doctests

comment:8 Changed 3 years ago by ncohen

  • Status changed from needs_work to positive_review

Sorry, fixed :-/

comment:9 Changed 3 years ago by vbraun

  • Branch changed from public/19133 to 3bc31a1b7e08f4e57f325ce7d386ca0af36695e6
  • Resolution set to fixed
  • Status changed from positive_review to closed
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