Any traction to continue with this this year? On Thursday, January 19, 2017 at 7:56:49 PM UTC, Stefan van Zwam wrote: > > Hi all, > > Another year, another opportunity to let a student work on some code for > SageMath. I'm happy to volunteer as a mentor again, and would like some > input on stuff we'd like to see for matroids and/or graphs. Examples: > > * representability tests over various fields. Maybe use decompositions and > stabilizer theorems to cut down on the number of matrices to check? > * A framework for dealing with minor-closed classes: like a set data > structure, but with some support for minors. > * linear extensions/coextensions that keep track of allowed vectors. > * Proper support for graphic/cographic/frame matroids (showing the graph, > resigning across cuts, Whitney switching, etc.) > * Tangles and branch decompositions. > * Gammoids > * Bracket rings/Tutte groups/universal partial fields. > > Note that in the end, the student will write a proposal based on her/his > taste, but typically the list we put up serves as a major source of > inspiration. > > What would you guys find to be a useful addition? > > Best, > > Stefan. >
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