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19922026
most citedObservation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays

2k citations

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27 papers · 1 filter

math.GT2019

Double branched covers of tunnel number one knots

Yeonhee Jang, Luisa Paoluzzi

We provide criteria ensuring that a tunnel number one knot is not determined by its double branched cover, in the sense that the double branched cover is also the double branch…

math.GT2017★ 1 cited

The realization problem for Jørgensen numbers

Yasushi Yamashita, Ryosuke Yamazaki

Let G be a two generator subgroup of PSL(2,C). The Jorgensen number J(G) of G is defined by J(G)=inf{ |tr^2 A-4|+|tr[A,B]-2| ; G=<A,B>}. If G is a non-elementary Kleinian group, th…

math.GT2016★ 4 cited

On keen Heegaard splittings

Ayako Ido, Yeonhee Jang, Tsuyoshi Kobayashi

In this paper, we introduce a new concept of {\it strongly keen} for Heegaard splittings, and show that, for any integers and , there exists a strongly keen Heeg…

math.GT2015★ 4 cited

Meridional rank and bridge number for a class of links

Michel Boileau, Yeonhee Jang, Richard Weidmann

We prove that links with meridional rank 3 whose 2-fold branched covers are graph manifolds are 3-bridge links. This gives a partial answer to a question by S. Cappell and J. Shane…

math.GT2015

The growth rate of the tunnel number of m-small knots

Tsuyoshi Kobayashi, Yo'av Rieck

In a previous paper the authors defined the growth rate of the tunnel number of knots, an invariant that measures that asymptotic behavior of the tunnel number under connected sum.…

math.GT2015★ 4 cited

A knot with destabilized bridge spheres of arbitrarily high bridge number

Yeonhee Jang, Tsuyoshi Kobayashi, Makoto Ozawa +1

We show that there exists an infinite family of knots, each of which has, for each integer k>=0, a destabilized (2k+5)-bridge sphere. We also show that, for each integer n>=4, ther…