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16:30 -- 18:00 Ȋwȓ()
Tea: 16:00 -- 16:30 R[

1017 -- 056

͖r (ww@Ȋw)

Loop spaces of configuration spaces

l̂̓_̔zűԂ̃[vԂ̃zW[́Aʉꂽ Yang-Baxter֌WŒLie㐔̓WJ̍\ B̊ϓ_Aіڂ̗L^̈ʑsϗʂɂāA ̃EFCgnA_̔zűԂ̃[vԂ̃RzW[ނƂ Ƃ炦邱ƂB

1024 -- 056

cV (sww)

On Kashaev's conjecture for hyperbolic knots

"In this talk, I give a sketch, and so not complete, proof of Kashaev's conjecture which uses a surprising coincidence between the "stationary phase" equations for Kashaev's invariants and the hyperbolicity equations for ideal triangulations associated with knot diagrams."

1031 -- 056

v (HƑww)

ʑތQ̂QLERzW[ɂ

Taubes ɂ SW=Gr Gompf ɂ symplectic Lefschetz fibration p邱ƂɂCʑތQ̑㐔IȐ𒲂ׂ邱Ƃł܂D ̓Iɂ͔lSQLERzW[̔񎩖Ȃǂ _܂D
117@-- 056

]Y (sww)
stable r-spin curve moduli intersection theory ɂ

Jarvisɂstable r-spin curvemoduli\ĂB ̏ɂ̌𖞂cohomology class݂̑邱Ƃ ҂邪AWitten ɂĒĂꂽ@ ̂悤cohomology\Ă݂B ܂Ar-spinłGromov-Witten classIȂ̂ɂďqׂB

116 14:00 -- 122ɂĖ]ɂCtH[}Z~i[܂B

1114@Wûߋx
1121@-- 056

XI (ww)

іڂƑfARg|W[Ƒ㐔̂̐_

іڂƑfARl̂Ƒ㐔̗̂ގ -- ݖڌQ(3-manifold group)GaloisQ, AlexanderQGaloisQ, Milnorsϗʂ RedeiLƈʉ, ̗_, PȂ -- ɂĂbB
1128@-- 118

Joerg Winkelmann (ww@Ȋw/Baselw)

Generic subgroups of Lie Groups

125@-- 118

Jakob Grove (sww)

Fixed Point Varieties in the Moduli Space of Semi-Stable Sheaves

Consider an automorphism $\tau$ of a complex, holomorphic curve $X$. We study the fixed point variety' for the action of $\tau$ in the moduli space $M$ of semi-stable, locally free sheaves over $X$. The automorphism lifts to the sheaves and using local data of the lifts to do elementary modifications of the sheaves, we arrive at a certain moduli space of parabolic sheaves equipped with a finite action whose quotient is the fixed point variety' for the action of automorphism. In fact, we get a variety' which is the normalization of the fixed point variety'. This is a first important step towards an explicit calculation of what is conjecturally the Jones-Witten invariants of finite order mapping tori. In the talk I will explain why. Some algebraic geometry will be used in the talk, but no greater knowledge of that subject is necessary to understand the result or the basic ideas leading to it. This is joint work with J{\o}rgen Ellegaard Andersen.

19@-- 056

16:20 -- 17:20

(ww@Ȋw)

Ȗʂ_ł͂Ȃe_Ɏ̈Ή ꎟAz̋Ȗʏ̎啪zƂ܂. {u̖ړI͎͓IȋȖʏ̌Ǘ_̎ł 啪z̐U镑ɂēꂽʂ񍐂邱 ł. ̓Iɂ͓ϐgraphʂ WeingartenȖʂ̏ł̌ʂ񍐂, ܂Loewner\z Ɋ֘Aēꂽʂ񍐂܂. (A one-dimensional continuous distribution which gives a principal direction at each non-umbilical point is called a principal distribution. The purpose of this talk is to report results we have obtained on the behavior of the principal distributions around an isolated umbilical point on a real-analytic surface. In the concrete, we shall report results on the graph of a homogeneous polynomial and on a special Weingarten surface. In addition, we shall report one result with respect to Loewner's conjecture.)

17:30 -- 18:30

(ww@Ȋw)

The geometry of embeddings and immersions of 3-manifolds in 5-space

3l̂5Ԃւ̂͂ߍ݂̐zgs[ނ, ^ꂽ ͂ߍ݂̊􉽓Iȏ񂩂猩悤ƂЉ. ʂ̈ꕔ, C(L)A.Szucs(ELTE, Hungary) Ƃ̋ł.

116@-- 056

16:20 -- 17:20

OIKONOMIDES Catherine (ww@Ȋw)

Piecewise linear (PL) Reeb foliations of T^3 and the Godbillon-Vey cyclic cocycle.

Abstract: We compute the K-theory of foliations of T^3 by Reeb components. For such smooth foliations, the Godbillon-Vey invariant is known to be zero. However, if the foliation is PL, a non trivial invariant has been introduced by Ghys and Sergiescu : the PL-Godbillon-Vey invariant. We construct a cyclic cocycle on the C*-algebra of the foliation corresponding to this PL-Godbillon-Vey invariant, and compute the corresponding K-theory map, which is not trivial as expected.

17:30 -- 18:30

ߓcmv(ww@Ȋw)

On the closed chains and the spectrum of Laplacian on graphs

123@-- 056

16:20 -- 17:20

ۍF (ww@Ȋw)

On metric property of polymodal interval maps and density of Axiom A

17:40 -- 18:40

Du\v{s}an Repov\v{s} (University of Ljubljana)

A survey on topology of 2-dimensional polyhedra: New results, problems and conjectures.
We shall present a survey of recent results on topology of fake surfaces and special 2-dimensional polyhedra, and their relation to the classical Whitehead asphericity conjecture and some classical results of topology of 3-manifolds, due to Brodsky-Repov\v s-Skopenkov, Lasheras, Oni\v s\v cenko, Repov\v{s}-Skopenkov, and Salihov. We shall also show the connection to earlier work of Mitchell-Przytycki-Repov\v{s} (resp. Cavicchioli-Lickorish-Repov\v{s}) on spines of 3-manifolds with boundary of genus 1 (resp. genus $\ge2$) and related recent work by Glock-Hog-Angeloni concerning the solution of the Repov\v s Problem on regular neighborhoods of 2-complexes in 3-manifolds.

213 -- 056, 16:30 -- 18:00

{Pm (ww@Ȋw)

YԂw-sϗʂƑݖ@

ÓcYƏ㐳Ƃ̋ɂAzW[3 ɑ΂zW[R{fBYsϗʂłw-sϗʂɂāA Ɍٓ_̊^̑ݖ@𖞂Ƃ炩 ɂ܂B̂ƂɊ֘Aĕ^񎁂̂wEɂ肻̓ٓ_ ̊^ÓTe[^֐̕ϊƊ֌W邱Ƃ܂B łw-sϗʂLzW[ʂɑ΂Ĉʉ邱ƂɂA ٓ_̊^̓ٓ_̗ݖڂł郌YԂw-sϗʂ̂ Ƃėł邱ƁAɂw-sϗʂ̑ݖ@Diracpf̎w ̍Ƃĉ߂ł邱ƂbƎvĂ܂B

220 -- 056, 16:30 -- 18:00

^ꂽ end invariant Klein Q̍\

Ending lamination \zƁABers-Thurston \zƂƁAKlein Q̊S ނ́A[pό`Ԃ̋EɂQ end invariant gĕ\ƂɋA B̘bł́Aparabolic Ȃ Klein QɂāAend invariant ƂĎ ׂKv invariant ͑SċEŎ\ł邱ƂB

@ ߋ̃vO
1996N4 -- 7 | 1996N10-- 1997N1
1997N4 -- 7 | 1997N10-- 1998N1
1998N4 -- 7 | 1998N10 -- 1999N1
1999N4 -- 7 | 1999N10 -- 2000N1
2000N4 -- 7

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