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Which cubic graphs have quadrangulated spherical immersions?
Lowell Abrams, Yosef Berman, Vance Faber, Michael Murphy
Izvirni znanstveni članek
Oznake: spherical embedding;immersion;quadrangulation;
We consider spherical quadrangulations – spherical embeddings of multigraphs, possibly with loops, so that every face has boundary walk of length 4 – in which all vertices have degree 3 or 4. Interpreting each degree 4 vertex as a crossing, these embeddings can also be thought of as transversal imme ...
Leto: 2026 Vir: Repozitorij Univerze na Primorskem (RUP)
Št. zadetkov: 1
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