Added some functions for working with graph inverse semigroups and their congruences - #1204
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joe-dw wants to merge 18 commits into
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Added some functions for working with graph inverse semigroups and their congruences#1204joe-dw wants to merge 18 commits into
joe-dw wants to merge 18 commits into
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Added functions, documentation and tests for graph inverse semigroup congruence and trace.
joe-dw
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July 29, 2026 10:50
Removed undefined declaration of MinimalHereditarySubsetsVertex
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james-d-mitchell
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Aug 20, 2026
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This needs some more polishing and some more justification for the changes that you want to introduce. Please update and try again.
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Functions have been added to find edges and paths with range or source of a given vertex in a graph inverse semigroup, as well as finding the positive and negative paths that form any given element. There is also a new definition for the trace of a congruence by Wang pair, and graph inverse semigroup specific implementations of CongruenceTestMembershipNC, ImagesElm and EquivalenceRelationPartition for both traces and congruences.