Browsing by MSC "46"
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Groups with SpanierWhitehead Duality
[OWP201923] (Mathematisches Forschungsinstitut Oberwolfach, 20190917)We introduce the notion of SpanierWhitehead $K$duality for a discrete group $G$, defined as duality in the KKcategory between two $C*$algebras which are naturally attached to the group, namely the reduced group ... 
0548  Heat Kernels, Stochastic Processes and Functional Inequalities
[OWR200554] (2005)  (27 Nov  03 Dec 2005)The conference brought together mathematicians belonging to several fields, essentially analysis, probability and geometry. One of the main unifying topics was certainly the study of heat kernels in various contexts: ... 
1648  Heat Kernels, Stochastic Processes and Functional Inequalities
[OWR201655] (2016)  (27 Nov  03 Dec 2016)The general topic of the 2016 workshop Heat kernels, stochastic processes and functional inequalities was the study of linear and nonlinear diffusions in geometric environments including smooth manifolds, fractals and ... 
0915b  Hilbert Modules and Complex Geometry
[OWR200920] (2009)  (05 Apr  11 Apr 2009)The major topics discussed in this workshop were Hilbert modules of analytic functions on domains in ℂn, Toeplitz and Hankel operators, the interplay of commutative algebra, complex analytic geometry and multivariable ... 
1417  Hilbert Modules and Complex Geometry
[OWR201421] (2014)  (20 Apr  26 Apr 2014)The major topics discussed in the workshop were Hilbert modules of analytic functions on domains in Cn, Toeplitz and Hankel operators, reproducing kernel Hilbert spaces and multiplier algebras, the interplay of complex ... 
Infeasibility certificates for linear matrix inequalities
[OWP201128] (Mathematisches Forschungsinstitut Oberwolfach, 20110525)Farkas' lemma is a fundamental result from linear programming providing linear certi cates for infeasibility of systems of linear inequalities. In semidefinite programming, such linear certificates only exist for strongly ... 
1819  Interactions between Operator Space Theory and Quantum Probability with Applications to Quantum Information
[OWR201822] (2018)  (06 May  12 May 2018)Operator space theory was the joining element of our workshop. This theory is a quantisation of the theory of Banach spaces. The talks at our meeting investigated the interactions of operator space theory with operator ... 
0651  Konvexgeometrie
[OWR200656] (2006)  (17 Dec  23 Dec 2006)The geometry of convex domains in Euclidean space plays a central role in several branches of mathematics: functional and harmonic analysis, the theory of PDE, linear programming and, increasingly, in the study of other ... 
1215c  MiniWorkshop: Endomorphisms, Semigroups and C*Algebras of Rings
[OWR201220] (2012)  (08 Apr  14 Apr 2012)The main aim of the workshop was to explore recent progress in the study of endomorphisms of $C*$algebras, semigroup crossed products, graph algebras, ring $C*$algebras, purely infinite $C*$algebras and related algebraic ... 
1738a  MiniWorkshop: MASAs and Automorphisms of C*Algebras
[OWR201742] (2017)  (17 Sep  23 Sep 2017)The main aim of this workshop was to study maximal abelian *subalgebras of C*algebras from various points of view. A chief motivation is the UCT problem, which asks whether all separable nuclear C*algebras satisfy the ... 
1416a  MiniWorkshop: Mathematical Physics meets Sparse Recovery
[OWR201418] (2014)  (13 Apr  19 Apr 2014)In recent years, there have been several fruitful interchanges of methods between the fields of sparse and lowrank recovery on the one hand and quantum information theory on the other hand. One way to understand this ... 
1606a  MiniWorkshop: Operator Spaces and Noncommutative Geometry in Interaction
[OWR20166] (2016)  (07 Feb  13 Feb 2016)In recent years, operator space theory has made remarkable appearances in noncommutative geometry, notably in the study of $C^*$algebras of real reductive groups and the unbounded picture of Kasparov theory. In both these ... 
0533a  MiniWorkshop: Operators on Spaces of Analytic Functions
[OWR200536] (2005)  (14 Aug  20 Aug 2005)The major topics discussed in this workshop were invariant subspaces of linear operators on Banach spaces of analytic functions, the ideal structure of H ∞ , asymptotics for condition numbers of large matrices, and questions ... 
0908b  MiniWorkshop: Product Systems and Independence in Quantum Dynamics
[OWR20099] (2009)  (15 Feb  21 Feb 2009)Quantum dynamics, both reversible (i.e., closed quantum systems) and irreversible (i.e., open quantum systems), gives rise to product systems of Hilbert spaces or, more generally, of Hilbert modules. When we consider ... 
1816c  MiniWorkshop: Superexpanders and Their Coarse Geometry
[OWR201819] (2018)  (15 Apr  21 Apr 2018)It is a deep open problem whether all expanders are superexpanders. In fact, it was already a major challenge to prove the mere existence of superexpanders. However, by now, some classes of examples are known: Lafforgue’s ... 
0438  Nichtkommutative Geometrie
[OWR200445] (2004)  (12 Sep  18 Sep 2004)These notes contain the extended abstracts of talks given at the meeting on ’noncommutative geometry’ in September 2004. The range of topics includes index theory, algebraic and topological Ktheory, cyclic homology, quantum ... 
0736  Noncommutative Geometry
[OWR200743] (2007)  (02 Sep  08 Sep 2007)Many of the various aspects of Noncommutative Geometry were represented in the talks. This includes in particular index theory on foliated spaces, a number of results on spectral triples, noncommutative manifolds and ... 
0937  Noncommutative Geometry
[OWR200941] (2009)  (06 Sep  12 Sep 2009)Many of the diﬀerent aspects of Noncommutative Geometry were represented in the talks. The list of topics that were covered includes in particular new insight into the geometry of a noncommutative torus, local index formulae ... 
1137  Noncommutative Geometry
[OWR201145] (2011)  (11 Sep  17 Sep 2011)Noncommutative Geometry applies ideas from geometry to mathematical structures determined by noncommuting variables. This meeting concentrated primarily on those aspects of Noncommutative Geometry that are related to index ... 
1337  Noncommutative Geometry
[OWR201345] (2013)  (08 Sep  14 Sep 2013)Noncommutative Geometry applies ideas from geometry to mathematical structures determined by noncommuting variables. This meeting emphasized the connections of Noncommutative Geometry to number theory and ergodic theory.