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math.GT2024
Quandle Action Quivers
Mason Cai, Sam Nelson
Quandle Coloring Quivers are directed graph-valued invariants of classical and virtual knots and links associated to finite quandles. Quandle action quivers are subquivers of the f…
math.HO2024
Richard A. Litherland: A Brief Biography
Alison Litherland, Patrick Litherland, Sam Nelson +1
Richard A. Litherland was born in 1953 in England. He received his PhD at Trinity College in Cambridge in 1979 and moved to the USA in 1983. He had a lengthy and distinguished care…