𝔖 Bobbio Scriptorium
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On the noninterpolation of polyhedral maps

✍ Scribed by Adrian Riskin; D.W. Barnette


Book ID
103061064
Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
529 KB
Volume
131
Category
Article
ISSN
0012-365X

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✦ Synopsis


In this paper we show that if attention is restricted to polyhedral embeddings of graphs, no theorem analogous to the Duke interpolation theorem for 2-cell embeddings is true. We alsg. give two interesting classes of graphs: (i) a class in which the members have polyhedral embeddings in the torus and also in orientable manifolds of arbitrarily high genus, (ii) and another in which the members have polyhedral embeddings in the projective plane and also in orientable and nonorientable manifolds of arbitrarily low Euler characteristic.


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We give various conditions on pinched-torus polyhedral maps which are necessary for their graphs to be embeddable in the projective plane. Our other main result is that even if the graph of a polyhedral map in the pinched torus is embeddable in a projective plane, the map induced by the embedding ca