{
    "147418-21900996":
    {
        "datetime_modified":"20260406T005112",
        "datetime_start":"20260406T160000",
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        "date_start":"2026-04-06",
        "date_end":"2026-04-06",
        "time_start":"16:00:00",
        "time_end":"17:00:00",
        "time_zone":"America\/Detroit",
        "event_title":"Turning web colorings into a poset",
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        "combined_title":"Turning web colorings into a poset: Veronica Lang",
        "event_subtitle":"Veronica Lang",
        "event_type":"Workshop \/ Seminar",
        "event_type_id":"21",
        "description":"Tensor invariants can be viewed as sums over the proper edge colorings of certain planar bipartite graphs called SL_r webs. In this talk, I will introduce SL_r webs and discuss ongoing work studying the structure of the set of edge colorings of an SL_r web. An (edge) Kempe move on an edge coloring of a graph swaps two colors along a maximal path in the graph that uses only those two colors. We can use these moves to construct a graph P(W,r) whose vertices are r-edge colorings of an SL_r web W and whose edges correspond to Kempe moves. I will show that P(W,r) is connected and that it is a poset! I present a few questions about the structure of this poset and answer some of them.",
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        "room":"3866",
        "location_name":"East Hall",
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        "tags":["Mathematics"],
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                "group_name":"Student Combinatorics Seminar - Department of Mathematics",
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