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Canonical genus and the Whitehead doubles of pretzel knots

Mark Brittenham, Jacqueline Jensen

math.GTarXiv:math/0608765

Abstract

We show that for an alternating pretzel knot K the canonical genera of its Whitehead doubles W(K) are equal to the crossing number c(K) of K, verifying a conjecture of Tripp in the case of these knots.

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