6 citations · 11 across the 11 of their papers we have counts for
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math.GT2006★ 2 cited
Crosscap numbers of pretzel knots
Kazuhiro Ichihara, Shigeru Mizushima
The crosscap number of a knot in the 3-sphere is defined as the minimal first Betti number of non-orientable subsurfaces bounded by the knot. In this paper, we determine the crossc…
math.GN2006
Strongly invertible knots, rational-fold branched coverings and hyperbolic spatial graphs
Kazuhiro Ichihara, Akira Ushijima
A construction of a spatial graph from a strongly invertible knot was developed by the second author, and a necessary and sufficient condition for the given spatial graph to be hyp…