BEGIN:VCALENDAR
VERSION:2.0
PRODID:Ludger using PHP/v0.1
X-PUBLISHED-TTL:PT15MIN
METHOD:PUBLISH
X-WR-CALNAME:Maths & Stats: Analysis Seminar
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_10968@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20221212T140000Z
DTEND:20221212T150000Z
SUMMARY:Analysis Seminar: Semigroup C*-algebras arising from graphs of monoids - Cheng Chen
DESCRIPTION:Abstract: In the talk\, I will introduce a class of graphs of monoids and their semigroup C*-algebras induced by the left regular representations. These graphs of monoids give rise to some partial group actions and the related transformation groupoids. We give a detailed analysis to closed invariant subspaces and the topological...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=10968
LOCATION:Maths 311B
SEQUENCE:3
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_10970@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230112T160000Z
DTEND:20230112T170000Z
SUMMARY:Analysis Seminar: Quantum automorphism groups of connected locally finite graphs - Lukas Rollier (KU Leuven)
DESCRIPTION:Abstract: A very natural construction by Banica yields for any finite graph its quantum automorphism group. Recently\, through work of Mančinska and Roberson\, the representation category of these quantum groups has been described combinatorially. Building on these combinatorial tools\, it is possible to build a unitary tensor category for every connected...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=10970
LOCATION:Maths 311B
SEQUENCE:3
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_10971@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230119T160000Z
DTEND:20230119T170000Z
SUMMARY:Analysis Seminar: Actions of tensor categories on C*-algebras - Yuki Arano (online) (Kyoto University)
DESCRIPTION:Abstract: Tensor categories arise naturally from subfactors\, quantum groups and many other mathematical objects. In particular\, the classification of subfactors is closely related to actions of tensor categories on a factor. We use this machinery to C*-algebras and overview a possible direction toward classifying C*-subalgebras of finite index.\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=10971
LOCATION:Maths 311B
SEQUENCE:3
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_10969@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230126T160000Z
DTEND:20230126T170000Z
SUMMARY:Analysis Seminar: Equilateral sets in large Banach spaces - Hugh Wark
DESCRIPTION:Abstract: A subset of a Banach space is called equilateral if the distances between any two of its distinct points are the same. We will show that there exist non separable Banach spaces with no infinite equilateral sets.\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=10969
LOCATION:Maths 311B
SEQUENCE:4
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_10974@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230202T160000Z
DTEND:20230202T170000Z
SUMMARY:Analysis Seminar: Quantum Cayley graphs - Mateusz Wasilewski (Polish Academy of Sciences)
DESCRIPTION:Abstract: I will propose a definition of a quantum Cayley graph of a discrete quantum group. I will first focus on the unimodular case and discuss how to extend the notion of quantum graphs to the (highly restricted) infinite dimensional setting. It turns out that quantum Cayley graphs to a large...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=10974
LOCATION:Maths 311B
SEQUENCE:3
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_10975@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230208T160000Z
DTEND:20230208T170000Z
SUMMARY:Analysis Seminar: Classifiability of transformation group C*-algebras. - Eusebio Gardella (Göteborgs Universitet)
DESCRIPTION:Abstract: Given a topological dynamical system\, there is a standard way to associate a C*-algebra to it\, namely the crossed product (also known as the transformation group C*-algebra). Crossed products have provided both new examples of interesting C*-algebras\, as well as new waysto study already known ones (such as the irrational rotation...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=10975
LOCATION:Maths 116
SEQUENCE:4
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_10976@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230217T160000Z
DTEND:20230217T170000Z
SUMMARY:Analysis Seminar: Partial Pontryagin duality for actions of quantum groups on C*-algebras - Kan Kitamura (University of Tokyo)
DESCRIPTION:Abstract: In view of Takesaki-Takai duality\, we can go back and forth between the C*-dynamical systems of an abelian group and of its Pontryagin dual by taking crossed products. In this talk\, I present a similar duality between actions on C*-algebras of two kinds of quantum groups\, called a double crossed...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=10976
LOCATION:Maths 116
SEQUENCE:4
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_10977@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230223T160000Z
DTEND:20230223T170000Z
SUMMARY:Analysis Seminar: Definable refinements of classical algebraic invariants - Martino Lupini (Università di Bologna)
DESCRIPTION:Abstract: In this talk I will explain how methods from logic allow one to construct refinements of classical algebraic invariants that are endowed with additional topological and descriptive set-theoretic information. This approach brings to fruition initial insights due to Eilenberg\, Mac Lane\, and Moore (among others) with the additional ingredient of...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=10977
LOCATION:Maths 311B
SEQUENCE:3
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_10978@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230302T160000Z
DTEND:20230302T170000Z
SUMMARY:Analysis Seminar: Ratio-limits and Toeplitz quotients for random walks on relatively hyperbolic groups. - Adam Dor-On (Haifa University)
DESCRIPTION:Abstract: When studying quotients of C*-algebras generated by creation and annihilation operators on analogues of Fock space\, the existence of a unique \\emph{smallest equivariant quotient} becomes an important question in the theory. When it exists\, this quotient is sometimes called the \\emph{co-universal quotient}. The study goes back to works of Cuntz\,...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=10978
LOCATION:Maths 311B
SEQUENCE:3
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_10979@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230309T160000Z
DTEND:20230309T170000Z
SUMMARY:Analysis Seminar: Geometry of sofic approximations - Vadim Alekseev
DESCRIPTION:Abstract: In the recent years\, there has been substantial activityconnecting graph theory and group theory via the concept of a metricapproximation of an infinite group by finite objects (groups orgraphs)\, particularly around sofic groups. This lead to numerousresults which describe approximation properties of the group (forinstance\,...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=10979
LOCATION:Maths 311B
SEQUENCE:3
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_10980@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230316T160000Z
DTEND:20230316T170000Z
SUMMARY:Analysis Seminar: Some algebraic aspects of minimal dynamics on the Cantor set - Maryam Hosseini (Queen Mary University of London)
DESCRIPTION:Abstract: By the well-known Jewett-Krieger theorems minimal dynamical systems on the Cantor set are topological analogous of ergodic systems on probability Lebesgue spaces. Dimension group and Bratteli diagrams are operator algebraic tools to study Cantor minimal systems. In this talk\, I try to make an introduction to dimension groups from dynamical...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=10980
LOCATION:Maths 311B
SEQUENCE:3
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_10982@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230323T150000Z
DTEND:20230323T160000Z
SUMMARY:Analysis Seminar: Equivariant Higher Dixmier-Douady Theory for Circle Actions - Ulrich Pennig (Cardiff University)
DESCRIPTION:Abstract: Continuous fields of operator algebras have found applications in various different areas: among them representation theory\, index theory\, twisted K-theory and conformal field theory. While the classification of all continuous fields of simple C*-algebras over a topological space is out of reach\, section algebras of locally trivial bundles provide a...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=10982
LOCATION:Maths 311B
SEQUENCE:3
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11022@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230330T150000Z
DTEND:20230330T160000Z
SUMMARY:Analysis Seminar: Regularity in Free Probability and Free Stein Dimension - Ian Charlesworth (Cardiff University)
DESCRIPTION:Abstract: The study of regularity in free probability boils down to the question of how much information about a *-algebra can be gleaned from probabilistic properties of its generators. Some of the first results in this theme come from the theory of Voiculescu's free entropy: generators satisfying certain entropic assumptions generate...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11022
LOCATION:Maths 311B
SEQUENCE:3
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11023@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230406T150000Z
DTEND:20230406T160000Z
SUMMARY:Analysis Seminar: Around the Approximation Property for Quantum Groups - Matthew Daws (University of Central Lancashire)
DESCRIPTION:Abstract: I will introduce what the "approximation property" (AP) is for (locally compact) groups\, and provide a few applications. I will then talk about how one might give an analogous definition for (locally compact) quantum groups\, explaining some of the needed technology along the way.\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11023
LOCATION:Maths 311B
SEQUENCE:3
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_10981@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230412T150000Z
DTEND:20230412T160000Z
SUMMARY:Analysis Seminar: NON-HAUSDORFF GROUPOIDS AND C*-ALGEBRAS - Ruy Exel (Universidade Federal de Santa Catarina)
DESCRIPTION:Abstract: In 2008\, building on earlier work of Feldman\, Moore and Kumjian\, Jean Renault introduced the notion of Cartan inclusions of C*-algebras and proved that these correspond bijectively to twisted\, essentially principal\, Hausdorff etale groupoids via the reduced groupoid C*-algebra construction. Since non-Hausdorff groupoids are also knownn to lead to important...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=10981
LOCATION:Maths 311B
SEQUENCE:3
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11044@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230427T150000Z
DTEND:20230427T160000Z
SUMMARY:Analysis Seminar: Algebraic Cartan pairs over ample etale groupoids - Ying-Fen Lin (Queen's University Belfast)
DESCRIPTION:Abstract: Groupoid C*-algebras and twisted groupoid C*-algebras were introduced by Renault in the late ’70\, and have since proved extremely important in the study of structural properties for large classes of C*-algebras. Moreover\, Kumjian and Renault developed the C*-algebraic theory of Cartan pairs which arise from twisted groupoid algebras of effective...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11044
LOCATION:Maths 311B
SEQUENCE:3
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11024@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230504T150000Z
DTEND:20230504T160000Z
SUMMARY:Analysis Seminar: K-theory for crossed products by Bernoulli shifts - Siegfried Echterhoff (WWU Münster)
DESCRIPTION:Abstract: Abstract: For a large class of unital $C^*$-algebras $A$\, we calculate the $K$-theory of reduced crossed products $A^{\\otimes G}\\rtimes_rG$ of Bernoulli shifts by groups satisfying the Baum--Connes conjecture. In particular\, we give explicit formulas for finite-dimensional $C^*$-algebras\, UHF-algebras\, rotation algebras\, and several other examples. As an application\, we obtain a...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11024
LOCATION:Maths 311B
SEQUENCE:3
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11045@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230511T150000Z
DTEND:20230511T160000Z
SUMMARY:Analysis Seminar: Quasisymmetry groups of finitely ramified fractals - Jim Belk (University of Glasgow)
DESCRIPTION:Abstract: Quasisymmetries are an important class of homeomorphisms related to analysis on metric spaces and quasiconformal geometry. In this talk\, I will introduce quasisymmetries and outline a new theory of quasisymmetries for finitely ramified fractals\, including applications to fractals such as generalized Sierpinski triangles and Julia sets of hyperbolic polynomials. This...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11045
LOCATION:Maths 311B
SEQUENCE:3
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11046@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230518T150000Z
DTEND:20230518T160000Z
SUMMARY:Analysis Seminar: A Central Limit Theorem for the Thompson Group $F$ - Arundhathi Krishnan (Munster Technological University)
DESCRIPTION:Abstract: We discuss a central limit theorem in the framework of the Thompson group $F$. For this purpose\, we consider the standard infinite presentation of the group $F$ and denote the generators of $F$ by $g_n$. We show that the large-$n$ limit law of the self-adjoint element $s_n...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11046
LOCATION:Maths 311B
SEQUENCE:3
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11052@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230524T150000Z
DTEND:20230524T160000Z
SUMMARY:Analysis Seminar: Wreath-like product groups and rigidity of their von Neumann algebras - Adrian Ioana (UC\, San Diego)
DESCRIPTION:Abstract: Wreath-like products are a new class of groups\, which are close relatives of the classical wreath products. Examples of wreath-like product groups arise from every non-elementary hyperbolic groups by taking suitable quotients. As a consequence\, unlike classical...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11052
LOCATION:Maths 110
SEQUENCE:3
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11056@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230601T150000Z
DTEND:20230601T160000Z
SUMMARY:Analysis Seminar: Characterising residually finite dimensional C*-algebras in dynamical contexts - Adam Skalski (Polish Academy of Sciences)
DESCRIPTION:Abstract: A C*-algebra is said to be residually finite-dimensional (RFD) when it has `sufficiently many' finite-dimensional representations. The RFD property is an important\, and still somewhat mysterious notion\, admitting several equivalent descriptions and having subtle connections to residual finiteness properties of groups. In this talk I will present certain...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11056
LOCATION:Maths 311B
SEQUENCE:2
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11018@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230615T150000Z
DTEND:20230615T160000Z
SUMMARY:Analysis Seminar: Dauns-Hofmann-Kumjian-Renault Duality for Fell Bundles and Structured C*-Algebras - Tristan Bice (Czech Academy of Sciences in Prague)
DESCRIPTION:Abstract: A natural problem that has plagued C*-algebra theory since its inception has been to find an appropriate noncommutative extension of the classic Gelfand duality\, thus truly justifying the viewpoint of C*-algebra theory being "noncommutative topology". Here we outline our work to unify two of the more successful such extensions\, namely...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11018
LOCATION:Maths 311B
SEQUENCE:3
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11025@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230629T150000Z
DTEND:20230629T160000Z
SUMMARY:Analysis Seminar: "Analogy geometry" of the prime numbers - Valerio Proietti (University of Tokyo)
DESCRIPTION:Abstract: This talk is based on recent work by Connes and Consani\, and old work by Glimm and Dixmier. We will take a walk in the "geometric garden of analogies" in search of a mysterious curve over a mysterious field. Our last stop will lead us\, somewhat unexpectedly\, to the "moduli...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11025
LOCATION:Maths 311B
SEQUENCE:3
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11069@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230907T140000Z
DTEND:20230907T150000Z
SUMMARY:Analysis Seminar: Coactions on C*-envelopes and their applications - Adam Dor-On (Haifa University)
DESCRIPTION:Abstract: In this talk we explain how we resolved the problem of extending normal coactions on non-self-adjoint algebras to their C*-envelope\, and provide an application of our result to operator algebras arising from small categories in the sense of Spielberg. Our work yields generally applicable tools for computing the C*-envelope\, recovers...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11069
LOCATION:Maths 311B
SEQUENCE:2
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11070@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230907T150000Z
DTEND:20230907T160000Z
SUMMARY:Analysis Seminar: From directed graphs of groups to Kirchberg algebras - Victor Wu (University of Sydney)
DESCRIPTION:Abstract: Directed graph algebras have long been studied as tractable examples of C*-algebras\, but they are limited by their inability to have torsion in their K_1 group. Graphs of groups\, which are famed in geometric group theory because of their intimate connection with group actions on trees\, are a more recent...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11070
LOCATION:Maths 311B
SEQUENCE:2
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11078@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20230921T153000Z
DTEND:20230921T163000Z
SUMMARY:Analysis Seminar: Averaging over a compact quantum subgroup - Jacek Krajczok (University of Glasgow)
DESCRIPTION:Abstract: Let K be a compact quantum subgroup of a locally compact quantum group G. During the talk I will discuss a method of averaging a function on G into a K-bi-invariant function. Using this method we are able to show equivalence between central strong amenability of a discrete quantum group...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11078
LOCATION:Maths 110
SEQUENCE:2
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11093@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20231005T140000Z
DTEND:20231005T150000Z
SUMMARY:Analysis Seminar: The topological Rokhlin dimension\, approximate group structure and the topological embedding problem. - Sihan Wei (University of Glasgow)
DESCRIPTION:Abstract: The motivation of this research is the so called “non-commutative embedding problem”\, which stems from the classical embedding problem in the topological dynamics\, involving several dynamical concepts which have been now widely used in operator algebra theory such as the mean dimension and the small boundary property. In this talk\,...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11093
LOCATION:Maths 311B
SEQUENCE:2
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11094@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20231005T150000Z
DTEND:20231005T160000Z
SUMMARY:Analysis Seminar: Amenable Invariant Random Algebras. - Tattwamasi Amrutam (Ben-Gurion University of the Negev)
DESCRIPTION:Abstract: We approach the study of sub-von Neumann algebras of the group von Neumann algebra L(\\Gamma) for a countable group \\Gamma from a dynamical perspective. We show that L(\\Gamma) admits a maximal \\Gamma-invariant amenable subalgebra. We introduce the notion of Invariant Random Algebra (IRA) in the space of sub-algebras\, analogous to the concept of Invariant Random Subgroup (IRS). Finally\, we shall...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11094
LOCATION:Maths 311B
SEQUENCE:2
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11097@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20231012T150000Z
DTEND:20231012T160000Z
SUMMARY:Analysis Seminar: C*-irreducible inclusions of commensurated subgroups - Eduardo Scarparo (Universidade Federal de Pelotas)
DESCRIPTION:Abstract: An inclusion of groups H < G is said to be C*-irreducible if any intermediate C*-algebra between (and including) the reduced C*-algebras of H and G is simple. We will present a complete characterization of C*-irreducible inclusions coming from commensurated subgroups in terms of dynamical and group theoretical properties. As...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11097
LOCATION:Maths 311B
SEQUENCE:2
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11099@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20231019T150000Z
DTEND:20231019T160000Z
SUMMARY:Analysis Seminar: The diagonal dimension for C*-pairs - Kang Li (FAU Erlangen-Nürnberg)
DESCRIPTION:Abstract: We will introduce the notion of diagonal dimension for diagonal pairs of C*-algebras in the sense of Kumjian\, and will compare it with the usual nuclear dimension for C*-algebras. For instance\, the Jiang-Su algebra Z admits a diagonal MASA D such that the diagonal dimension of (Z\,D) is equal to n...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11099
LOCATION:Maths 311B
SEQUENCE:2
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11106@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20231024T120000Z
DTEND:20231024T130000Z
SUMMARY:Analysis Seminar: Poincaré duality for groupoid homology - Makoto Yamashita (University of Oslo)
DESCRIPTION:Abstract: Torsion free nilpotent groups satisfy the Poincaré duality\, which says that its k-th homology group is isomorphic to its (n - k)-th cohomology group\, where n is the dimension of the associated Lie group. I explain an analogue in the groupoid setting that allows a computation of homology for étale...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11106
LOCATION:Maths 116
SEQUENCE:2
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11107@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20231026T150000Z
DTEND:20231026T160000Z
SUMMARY:Analysis Seminar: KK with extra structures in the approach via qA - Joachim Cuntz (University of Münster)
DESCRIPTION:Abstract: An alternative approach to Kasparov's classical KK-theory uses quasihomomorphisms and the universal algebra qA associated with a given C*-algebra A. One virtue of this approach is a very simple construction of the Kasparov product KK(A\,B)xKK(B\,C) to KK(A\,C). KK-groups have by now been defined and...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11107
LOCATION:Maths 311B
SEQUENCE:2
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11115@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20231102T160000Z
DTEND:20231102T170000Z
SUMMARY:Analysis Seminar: A noncommutative ergodic theorem for actions of amenable groups - Léonard Cadilhac (Sorbonne University)
DESCRIPTION:Abstract: The pointwise theorem of Birkhoff establishes that ergodic averages associated with a measure preserving transformation converge almost everywhere. Over the years\, this statement has been refined and generalized in many directions. In this talk\, we will be interested in a pointwise theorem valid both for actions of amenable groups...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11115
LOCATION:Maths 311B
SEQUENCE:2
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11131@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20231116T160000Z
DTEND:20231116T170000Z
SUMMARY:Analysis Seminar: Geometric Realisation of Spectral Triples - Evelyn Lira-Torres (Queen Mary University of London)
DESCRIPTION:Abstract: We will introduce the formalism of Noncommutative Riemannian Geometry over unital algebras based on work by S. Majid and E. Beggs\, this will set the basis to introduce a generalisation of A. Connes' Spectral Triples known as Geometric Realisation of Spectral Triples. Given this formalism we will emphasize...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11131
LOCATION:Maths 311B
SEQUENCE:2
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11134@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20231123T160000Z
DTEND:20231123T170000Z
SUMMARY:Analysis Seminar: Graphs of C*-algebras and free wreath products of quantum groups - Arthur TROUPEL (Université Paris Cité)
DESCRIPTION:Abstract: The free wreath product of a compact quantum group by the quantum permutation group S_N^+ has been introduced by Bichon in order to give a quantum counterpart of the classical wreath product. The representation theory of such quantum groups is well-known\, as well as some approximation properties\, but some results...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11134
LOCATION:Maths 311B
SEQUENCE:2
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
BEGIN:VEVENT
UID:GLW_UNI_MS_WEBEVT_11138@maths-stats.gla.ac.uk
DTSTAMP:19700101T000000Z
DTSTART:20231130T160000Z
DTEND:20231130T170000Z
SUMMARY:Analysis Seminar: On word complexity of random substitution subshifts - Andrew Mitchell (University of Birmingham)
DESCRIPTION:Abstract: Random substitutions are a generalisation of (deterministic) substitutions where the substituted image of a letter is chosen from a fixed finite set with respect to a probability distribution. In contrast to their deterministic counterparts\, random substitutions often give rise to subshifts with positive topological entropy. In this talk\, I will provide...\N\NMore information: http://www.gla.ac.uk/schools/mathematicsstatistics/events/details/?id=11138
LOCATION:Maths 311B
SEQUENCE:2
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
END:VCALENDAR