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math.CO2023
Transitive cornerations in maps
Primoz Potocnik, Alejandra Ramos-Rivera, Micael Toledo +1
A corner in a map is an edge-vertex-edge triple consisting of two distinct edges incident to the same vertex. A corneration is a set of corners that covers every arc of the map exa…
math.CO2023
Symmetries of the Woolly Hat graphs
Leah Wrenn Berman, Hiroki Koike, Elias Mochan +3
A graph is edge-transitive if the natural action of its automorphism group on its edge set is transitive. An automorphism of a graph is semiregular if all of the orbits of the subg…