Integral trees homeomorphic to a double star

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Abstract

Trees with two nonadjacent vertices of degree larger than two are not integral. This settles a question by Watanabe & Schwenk (1979).

Original language	English
Pages (from-to)	77-80
Journal	Bulletin of the Institute of Combinatorics and its Applications
Volume	61
Publication status	Published - 2011

@article{e6bbf26b08ee4ff78bb9416a34abf1cc,

title = "Integral trees homeomorphic to a double star",

abstract = "Trees with two nonadjacent vertices of degree larger than two are not integral. This settles a question by Watanabe \& Schwenk (1979).",

author = "A.E. Brouwer and R.R. Del-Vecchio and D.P. Jacobs and V. Trevisan and C.T.M. Vinagre",

year = "2011",

language = "English",

volume = "61",

pages = "77--80",

journal = "Bulletin of the Institute of Combinatorics and its Applications",

issn = "1183-1278",

publisher = "Institute of Combinatorics and its Applications",

}

TY - JOUR

T1 - Integral trees homeomorphic to a double star

AU - Brouwer, A.E.

AU - Del-Vecchio, R.R.

AU - Jacobs, D.P.

AU - Trevisan, V.

AU - Vinagre, C.T.M.

PY - 2011

Y1 - 2011

N2 - Trees with two nonadjacent vertices of degree larger than two are not integral. This settles a question by Watanabe & Schwenk (1979).

AB - Trees with two nonadjacent vertices of degree larger than two are not integral. This settles a question by Watanabe & Schwenk (1979).

M3 - Article

SN - 1183-1278

VL - 61

SP - 77

EP - 80

JO - Bulletin of the Institute of Combinatorics and its Applications

JF - Bulletin of the Institute of Combinatorics and its Applications

ER -