Fumikazu Nagasato
Meijo University
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Publication
Featured researches published by Fumikazu Nagasato.
Journal of Knot Theory and Its Ramifications | 2006
Răzvan Gelca; Fumikazu Nagasato
In this paper, we list in explicit form the factoring relations of the Kauffman bracket skein module (KBSM for short) of a twist knot exterior. This is done using curves decorated by characters of irreducible SL(2, ℂ)-representations. In the process, we exhibit a relation which holds in the KBSM of the knot exterior, called the minimal relation. In the final section we prove that, when specializing the variable of the Kauffman bracket at t = -1, the minimal relation becomes the defining polynomial of the SL(2, ℂ)-character variety of the twist knot.
Journal of Knot Theory and Its Ramifications | 2005
Fumikazu Nagasato
In this paper we give a formula for the A-polynomial of the (2, 2p + 1)-torus knot, for any integer p, by using noncommutative methods (the Kauffman bracket skein modules).
International Journal of Mathematics | 2017
Fumikazu Nagasato; Masaaki Suzuki; Anh T. Tran
A knot is called minimal if its knot group admits epimorphisms onto the knot groups of only the trivial knot and itself. In this paper, we determine which two-bridge knot
Mathematische Annalen | 2012
Fumikazu Nagasato; Yoshikazu Yamaguchi
\mathfrak{b}(p,q)
arXiv: Geometric Topology | 2008
Fumikazu Nagasato; Yoshikazu Yamaguchi
is minimal where
Topology and its Applications | 2012
Fumikazu Nagasato
q \leq 6
arXiv: Geometric Topology | 2013
Fumikazu Nagasato; Anh T. Tran
or
Osaka Journal of Mathematics | 2016
Fumikazu Nagasato; Anh T. Tran
p \leq 100
arXiv: Geometric Topology | 2017
Fumikazu Nagasato; Shinnosuke Suzuki
.
Archive | 2017
Fumikazu Nagasato; Shinnosuke Suzuki