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PROJECTIONS OF BOUQUET GRAPH WITH TWO CYCLES

  • Huh, Young-Sik (Department of Mathematics School of Natural Sciences Hanyang University)
  • Published : 2008.09.30

Abstract

In this paper we investigate the projections of bouquet graph B with two cycles. A projection of B is said to be trivial if only trivial embeddings are obtained from the projection. It is shown that, to cover all nontrivial projections of B, at least three embeddings of B are needed. We also show that a nontrivial projection of B is covered by one of some two embeddings if the image of each cycle has at most one self-crossing.

Keywords

References

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Cited by

  1. AN ELEMENTARY SET FOR EMBEDDED BOUQUET GRAPHS WITH TWO CYCLES vol.20, pp.02, 2011, https://doi.org/10.1142/S0218216511008796