Download Classification of Nuclear C*-Algebras. Entropy in Operator by Mikael Rørdam, Erling Størmer (auth.) PDF

By Mikael Rørdam, Erling Størmer (auth.)

This EMS quantity involves elements, written through major scientists within the box of operator algebras and non-commutative geometry. the 1st half, written via M.Rordam entitled "Classification of Nuclear, uncomplicated C*-Algebras" is on Elliotts category software. The emphasis is at the type by means of Kirchberg and Phillips of Kirchberg algebras: only endless, uncomplicated, nuclear separable C*-algebras. This type result's defined nearly with complete proofs ranging from Kirchbergs tensor product theorems and Kirchbergs embedding theorem for designated C*-algebras. The classificatin of finite basic C*-algebras beginning with AF-algebras, and carrying on with with AF- and AH-algberas) is roofed, yet in general with no proofs. the second one half, written by means of E.Stormer entitled "A Survey of Noncommutative Dynamical Entropy" is a survey of the speculation of noncommutative entropy of automorphisms of C*-algebras and von Neumann algebras from its initiation by means of Connes and Stormer in 1975 until eventually 2001. the most definitions and resuls are mentioned and illustrated with the major examples within the idea. This ebook can be valuable to graduate scholars and researchers within the box of operator algebras and comparable areas.

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Mn(C(1I'». ') be the function u(z) = z for z E 1I', and put v = cp(u). Choose continuous functions Aj: [0,1] --+ 1I' such that A] (t), A2(t), ... , An(t) are the eigenvalues of v(e 2Hit ) listed counter clockwise for each t. There is k in to, 1, ... , n - I} such that Aj(l) = Aj+k(O) for all j (adding modulo n). /irdam functions are pointwise distinct. In that case there is a continuous unitary function z: [0, 1] ~ Mn (C) such that v(e 2JTit ) = z(t)diag(A\(t), A2(t),···, An(t))Z(t)*, for all tin [0,1], and such that z(l) = oiz(O), where oi is the permutation unitary in Mn ere) corresponding to the permutation j 1--+ j + k.

6) ~ Hom(K] (A), K] (B», M. R¢rdam 38 = zo'X and Yl(X)(ZJ} = Zl'X for Zo in KK(C,A) and Zl in K K(Co(JR), A). If

0 Cln , when n < m, put Cl n,n = idA", and let Cloo,n: An ---+ A denote the inductive limit homomorphism, so that Clk,m 0 Clm,n = Clk,n whenever 1 :s n :s m :s k :s 00. 1 (Approximate Intertwining). 'n(G m) is dense in Bn for all n; (v) I:~, On < 00. 2. 4) exist. 3). We can assume that the given a E An belongs to the dense set U~=n Cl;;;,'n(Fm); cf. 1 (iv). Hence we can assume that Clm,n (a) belongs to Fm for all m greater than some mo. >-~ fJm+ 1 fJoo,m+2 B 32 M. 1 one finds that This implies that IICBoo,m+2 0 flim+1 0 am+I,n)(a) - (f3oo,m+1 0 flim am,n)(a) II 0 = IIf3oo,m+2((flim+1 oam)(am,n(a)) - (f3m+1 o flim)(am,n(a))) II < 8m +8m+ 1 for all m 2: mo.

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