# $B4X@>:nMQAG4D%;%_%J!<(B ## Kansai Operator Algebras Seminar $BF|;~!'(B2014$BG/(B11$B7n(B29$BF|(B($BEZ(B)$B!A(B30$BF|(B($BF|!K(B $B>l=j!'(B$BGrIMD.Cf1{8xL14[(B$B!J2q5D<$BL1=I>>Iw(B$B!J=I!K(B

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$B;29M%Z!<%8!'(B $BCm0U!'=I$K%"%a%K%F%#%0%C%:!J%?%*%k!uMa0a!K$O$"$j$^$;$s(B $B%W%m%0%i%(B

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$BL@8w%P%9#1#2;0CJJI9T$-!&GrIM1X(B13:25$BH/"*>o4n1!2<(B13:37$BCe!J(B310$B1_!K(B  14:00$B!A(B15:00 $B!!(B $BFlED5*IW(B $B!!(B $BBg:e650iBg(B $B!!(B Fundamental group of uniquely ergodic Cantor minimal systems $B!!(B Abstract:$B!!(BWe introduce the fundamental group$\mathcal{F}(\mathcal{R})$of a uniquely ergodic Cantor minimal system$\mathcal{R}$. We show that if$\mathcal{R}$arises from a free action of a finitely generated abelian group, then there exists a unital countable subring$R $of$\mathbb{R}$such that$\mathcal{F}(\mathcal{R})=R_{+}^\times$. Therefore$\{4^n\; |\; n\in\mathbb{Z}\}$cannot be realized as the fundamental group of a uniquely ergodic Cantor minimal system in this class. We also consider the relation between fundamental groups of uniquely ergodic Cantor minimal$\mathbb{Z}^n$-systems and fundamental groups of crossed product$\mathrm{C}^*$-algebras$C(X)\rtimes \mathbb{Z}^n$. 15:15$B!A(B16:15 $B!!(B $B:4F#9/I'(B $B!!(B $B5~BgM}(B $B!!(B $B!!(B Classification of order zero c.p. maps by traces $B!!(B Abstract:$B!!(BOrder zero c.p. maps were systematically studied by W. Winter and J. Zacharias, based on the previous work by M. Wolf. These are c.p. maps preserving orthogonality, they are particularly well-behaved. In this talk, we introduce a classification of certain order zero c.p. maps up to approximate unitary equivalence by their behavior on tracial states. As an application of this classification, it was shown that the nuclear dimension of unital separable simple amenable $\mathcal{Z}$-absorbing $\mathrm{C}^*$-algebra is at most one if its extreme boundary of trace space is compact. This is a joint work with J. Bosa, N. P. Brown, A. Tikuisis, S. White, and W. Winter.
$BL@8w%P%9#1#2;0CJJI9T$-!&>o4n1!2<(B16:30$BH/"*Fn@i>v(B16:39$BCe!J(B280$B1_!K(B  18:00$B!A(B21:00 $B:)?F2q(B 30$BF|(B($BF|(B) $BL@8w%P%9#1#1EDJU1X9T$-!&Fn@i>v(B9:06$BH/"*>o4n1!2<(B9:15$BCe!J(B280$B1_!K(B
 9:30$B!A(B10:30 $B!!(B $B!!(B $B9SLnM*51(B $B!!(B $BElBg?tM}(B $B!!(B $B!!(B Unitary spherical representations of Drinfeld doubles $B!!(B Abstract:$B!!(BThe Drinfeld double of a q-deformation of a connected simply connected compact Lie group can be considered as a quantum analogue of the complexification of the Lie group. In this talk, we focus on irreducible spherical unitary representations of such Drinfeld doubles. In the case of $\mathrm{SU}_q(3)$, we give a complete classification of such representations. We also show the Drinfeld double of the quantum group $\mathrm{SU}_q(2n+1)$ has property (T), which also implies central property (T) of the dual of $\mathrm{SU}_q(2n+1)$. 10:45$B!A(B11:45 $B!!(B $BNkLZM*J?(B $B!!(B $BElBg?tM}(B/RIMS $B!!(B $B!!(B Group$\mathrm{C}^*$-algebras as decreasing intersection of nuclear$\mathrm{C}^*$- algebras $B!!(B Abstract:$B!!(BWe will see that for any discrete group with the AP, the reduced group$\mathrm{C}^*$-algebra is realized as a decreasing intersection of nuclear$\mathrm{C}^*$-algebras. This in particular says that unlike the$\mathrm{W}^*$-case, the decreasing intersection of nuclear$\mathrm{C}^*$-algebras can behave badly. In fact, it turned out that the decreasing intersection of nuclear$\mathrm{C}^*$-algebras does not need to have the OAP and the LLP, even when the decreasing sequence admits a compatible family of conditional expectations. $BL@8w%P%9#1#1EDJU1X9T$-!&>o4n1!2<(B12:03$BH/"*GrIM1X(B12:15$BCe!J(B310$B1_!K(B

$B;22CJm(B(2014/11/26$B8=:_(B)

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3. $BFlED5*IW(B 4. $BD9ED$^$j$q(B 5. $B:4F#9/I'(B
6. Benoit Collins
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16. $B8M>>Nh<#(B 17. $B2,0BN(B

$BF|;~!'(B2014$BG/(B6$B7n(B28$BF|(B($BEZ(B) $B>l=j!'FNI650iBg3X(B $B?74[(B2$B9fEo!J(BR-5$B!K(B2$B3,!!(B211$B9V5A<<(B $B%W%m%0%i%`(B

 14:00$B!A(B15:00 $B!!(B Cyril Houdayer $B!!(B ENS Lyon $B!!(B Asymptotic structure of free Araki-Woods factors $B!!(B Abstract : I will report on some new structural results for free Araki-Woods factors and their modular invariant subalgebras. This is joint work with Sven Raum. 15:15$B!A(B16:15 $B!!(B $BV:ED^+0l(B $B!!(B $BElBg?tM}(B $B!!(B $B!!(B On actions of compact abelian groups on subfactors. \$B!!(B Abstract : Classification of actions of discrete abelian groups on subfactors are studied by many researchers, including Loi, Popa, Kawahigashi, Winsløw and Masuda. Here, we generalize their results for certain inclusions of von Neumann algebras which may not be factors. As an application, we obtain some results about actions of compact abelian groups on certain subfactors.