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Toroidal Dehn fillings on large hyperbolic 3-manifolds
Masakazu Teragaito
We show that if a hyperbolic 3-manifold with a single torus boundary admits two Dehn fillings at distance 5, each of which contains an essential torus, then is a rational h…
Alexander polynomials of doubly primitive knots
Kazuhiro Ichihara, Toshio Saito, Masakazu Teragaito
We give a formula for Alexander polynomials of doubly primitive knots.
Crosscap numbers of 2-bridge knots
Mikami Hirasawa, Masakazu Teragaito
We present a practical algorithm to determine the minimal genus of non-orientable spanning surfaces for 2-bridge knots, called the crosscap numbers. We will exhibit a table of cros…
Boundary structures of hyperbolic 3-manifolds admitting annular and toroidal fillings at large distance
Sangyop Lee, Masakazu Teragaito
For a hyperbolic 3-manifold with a torus boundary component,all but finitely many Dehn fillings yield hyperbolic 3-manifolds. In this paper, we will focus on the situation wher…