Handle friendship seminar 2024 since 2013
Place:online or University of Tokyo (Komaba campus) or Online
japanese version
If you want to attend this zoom seminar, please register here.
If you register there, I send the Zoom URL to your email address.
2024 Autumn
- The third break 12/17 (Tue.) (Zoom meeting)
Motoo Tange (Univerisity of Tsukuba) 10:00-12:30 (GMT +09:00)
[Title]
Knot surgery and E(n)p,q without 1-handles
[Abstract]
Let $K$ be a knot with bridge number condition $b(K)\le 9n$.
Then we show $E(n)_{K}$ admits a handle decomposition without 1-handles.
As a corollary, we obtain if $\min\{p,q\}\le 9n$, then $E(n)_{T_{p,q}}$ admits a handle decomposition without 1-handles.
Also we show that if $\min\{p,q\}\le 9$, then $E(n)_{p,q}$ admits a handle decomposition without 1-handles.
- The second break 12/6 (Fri.) (Zoom meeting)
Yohei Wakamaki (Osaka University) 10:00-12:30 (GMT +09:00)
[Title]
$CP^2$-stabilization of simply-connected closed 4-manifold with small second betti number
[Abstract]
- The first break 12/2 (Mon.) (Zoom meeting)
Reo Yabuguchi (Okayama University) 10:00-12:30 (GMT +09:00)
[Title]
Applications to handle decompositions of Lefschetz fibrations on $S^2$
[Abstract]
Japanese version
< Keywords>
4-manifolds, Handle, Handle calculus, Kirby calculus, Exotic structure, Cork, Plug, Heegaard Floer homology, Seiberg-Witten invariant, Yang-Mills theory, Plane field, Contact structure,
Mapping class group, Lefschetz fibration, Fibered knot, Dehn surgery, Ribbon knots, Stein filling, Immersion, Branched cover, Mazur manifold, PALF, Curve graph, Whitehead double, Dehornoy ordering, Braid, Casson-Gordon invariant, Barking deformation, Dehn twist decomposition, Bordered Floer homology, Rasmussen invariant, non-proper stable map, equivariant cork, ribbon disk, Fox-Milnor theorem, trisection, 1-dimensional manifold
This seminar is a sober coffee break for 4-manifold researchers rather than serious seminar.
If you have something interesting for studying handles, would you like to talk in this coffee break.
If you want to attend an online seminar, please contact me.
Email: tange_at_mark_math.tsukuba.ac.jp
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Seminar