On Heegaard Splittings and Dehn surgeries of 3-manifolds,

and topics related to them

June 11 - June 15, 2001

(last update: June 11, 2001)

This conference is a part of the research project "Low-Dimensional Topology in the Twenty-First Century", and organize by Tsuyoshi Kobayashi.


June 11

1:00 p.m. -- 3:00 p.m. Prof. Ichiro Torisu (Akita Univ):

"On the additivity of the Thurston-Bennequin invariant of Legendrian knots"

3:30 p.m. -- 4:30 p.m. Prof. Kimihiko Motegi (Nihon Univ.)

"Seifert fibered surgery and primitive/Seifert-fibered constructions"

June 12

9:00 a.m. -- 9:40 a.m. Prof. Sang Yop Lee (KAIST):

"Dehn fillings and small surfaces, I"

10:10 a.m. -- 11:30 a.m. Prof. Seungsang Oh (CheonBuk National Univ.):

"Dehn fillings and small surfaces, II"

1:00 p.m. -- 2:00 p.m. Prof. Yo'av Rieck (Univ. of Arkansas, Nara Women's Univ.):

"Heegaard splittings of manifolds with involutions"

2:30 p.m. -- 3:30 p.m. Prof. Eric Sedgwick (DePaul Univ.):

"Heegaard surfaces and Dehn surgery - joint w/ Yo'av Rieck"

4:00 p.m. -- 5:00 p.m. Prof. Eric Sedgwick (DePaul Univ.):

"Genus two 3-Manifolds are built from handle number one pieces"

June 13

10:00 a.m. -- 11:30 a.m. Prof. Doo Ho Choi (KAIST):

"Parametrizations of 1-bridge torus knots"

1:00 p.m. -- 2:30 p.m. Prof. Chuichiro Hayashi (Japan Women's Univ.):

"A survey of known results on 1-genus 1-bridge knots"

3:00 p.m. -- 4:30 p.m. Prof. Hiroshi Goda (Tokyo Univ. of Agriculture and Technology):

"Genus two Heegaard splittings of exteriors of 1-genus 1-bridge knotsijoint with Chuichiro Hayashi)"

June 14

9:00 a.m. -- 10:00 a.m. Prof. Marty Scharlemann iU.C. Santa Barbara):

" There are no unexpected genus one tunnel number 1 knots "

10:30 a.m. -- 11:30 a.m. Prof. Jennifer Schultens (Emory University):

" Additivity of Bridge Numbers of Knots "

1:00 p.m. -- 3:00 p.m. Prof. Kanji Morimoto (Konan Univ.):

"On the smallness and the 1-bridge genus of knots"

3:30 p.m. -- 4:30 p.m. Prof. Dave Bachman (Univ. of Illinois at Chicago):

"Critical Heegaard Surfaces"

Note: Possibly a seminar on this talk will be held from 6:00 p.m. There is a reference on this talk at web page:


June 15

9:00 a.m. -- 10:00 a.m. Prof. Eiko Kin (Kyoto Univ.):

" On positivity and universality of templates induced from diffeomorphisms of the disk "

10:30 a.m. -- 11:30 a.m. Prof. Mikami Hirasawa (Gakushuin Univ.):

" On the positivity of braids associated to indexed plane curves "

1:00 p.m. -- 2:00 p.m. Problem Session

NOTE: There will be a seminar on Lackenby's paper:

Classification of Alternating Knots with tunnel number one

by Masako Kobayashi at Room 202 of RIMS from 10:00 a.m. June 16.