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Transactions of the American Mathematical Society
Transactions of the American Mathematical Society
ISSN 1088-6850(e) ISSN 0002-9947(p)
     

Disjoint paths, planarizing cycles, and spanning walks

Author(s): Xingxing Yu
Journal: Trans. Amer. Math. Soc. 349 (1997), 1333-1358.
MSC (1991): Primary 05C38, 05C10, 57M15
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Abstract: We study the existence of certain disjoint paths in planar graphs and generalize a theorem of Thomassen on planarizing cycles in surfaces. Results are used to prove that every 5-connected triangulation of a surface with sufficiently large representativity is hamiltonian, thus verifying a conjecture of Thomassen. We also obtain results about spanning walks in graphs embedded in a surface with large representativity.


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Additional Information:

Xingxing Yu
Affiliation: School of Mathematics, Georgia Institute of Technology, Atlanta, Georgia 30332
Address at time of publication: Department of Mathematics, Vanderbilt University, Nashville, Tennessee 37240
Email: yu@math.vanderbilt.edu

DOI: 10.1090/S0002-9947-97-01830-8
PII: S 0002-9947(97)01830-8
Keywords: bridge, disjoint paths, embedding, Hamilton cycle, representativity, walk
Received by editor(s): August 20, 1993
Additional Notes: Partially supported by NSF grants DMS--9105173 and DMS--9301909
Copyright of article: Copyright 1997, American Mathematical Society


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