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How do Seifert surgeries on hyperbolic knots arise from those on torus knots? We
approach this question from a networking viewpoint introduced by the authors in
[Mem. Amer. Math. Soc. 217 (2012), no. 1021]. The Seifert surgery network is a
–dimensional
complex whose vertices correspond to Seifert surgeries; two vertices are connected by
an edge if one Seifert surgery is obtained from the other by a single twist along a
trivial knot called a seiferter or along an annulus cobounded by seiferters.
Successive twists along a “hyperbolic seiferter” or a “hyperbolic annular pair”
produce infinitely many Seifert surgeries on hyperbolic knots. In this paper, we
investigate Seifert surgeries on torus knots that have hyperbolic seiferters or
hyperbolic annular pairs, and obtain results suggesting that such surgeries are
restricted.