BEGIN:VCALENDAR
PRODID:-//PSU Mathematics Department//Seminar iCalendar Generator//EN
VERSION:2.0
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Noncommutative Geometry Seminar
X-WR-TIMEZONE:America/New_York
BEGIN:VTIMEZONE
TZID:America/New_York
X-LIC-LOCATION:America/New_York
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:19700308T020000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:19701101T020000
RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160114T143000
DTEND;TZID=America/New_York:20160114T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29244
SUMMARY:Noncommutative Geometry Seminar - A categorical perspective on the
Atiyah-Segal completion theorem in KK-theory
DESCRIPTION:Seminar: Noncommutative Geometry Seminar\nTitle: A categorical
perspective on the Atiyah-Segal completion theorem in KK-theory\nSpeaker:
Yosuke Kubota\, University of Tokyo\nAbstract: The relative homological al
gebra developed by Meyer and Nest gives a systematic way to find semi-orth
ogonal decompositions of triangulated categories. In this talk\, we apply
it for the kernels of the restriction functors in compact Lie group equiva
riant Kasparov categories and relate it with the Atiyah-Segal completion t
heorem. As an application\, we discuss permanence property of the Baum-Con
nes conjecture under extensions of groups. This is a joint work with Yuki
Arano in the University of Tokyo.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160121T143000
DTEND;TZID=America/New_York:20160121T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29246
SUMMARY:Noncommutative Geometry Seminar - Compact group actions with contin
uous Rokhlin property
DESCRIPTION:Seminar: Noncommutative Geometry Seminar\nTitle: Compact group
actions with continuous Rokhlin property\nSpeaker: Yosuke Kubota\, Univers
ity of Tokyo\nAbstract: The Rokhlin property is introduced by Izumi as a c
lassifiable class of C*-dynamics\, which is an analogue in an approximate
sense of freeness in topological dynamics. In this talk\, we discuss cont
inuous Rokhlin property\, a variation of Rokhlin property introduced by Ga
rdella\, using techniques in quantum group theory and KK-theory. In partic
ular\, we determine the KK-equivalence class and give a classification of
Kirchberg G-algebras when the G is a compact Lie group with Hodgkin condit
ion. This is joint work with Yuki Arano in the University of Tokyo.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160128T143000
DTEND;TZID=America/New_York:20160128T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29248
SUMMARY:Noncommutative Geometry Seminar - Subfactors and noncommutative geo
metry
DESCRIPTION:Seminar: Noncommutative Geometry Seminar\nTitle: Subfactors and
noncommutative geometry\nSpeaker: Dave Penneys\, UCLA\nAbstract: I'll dis
cuss ongoing joint work with Michael Hartglass which studies connections b
etween subfactor theory\, C*-algebras\, and noncommutative geometry. The s
tandard invariant of a finite index subfactor forms a planar algebra\, and
in turn\, we can use planar algebras to construct various canonical C*-al
gebras using recent techniques of Guionnet-Jones-Shlyakhtenko (GJS). We co
mputed the K-theory and many nice properties of what we call the GJS C*-al
gebras\, which remember the standard invariant\, and provide an access poi
nt to make connections to NCG. I'll discuss our construction\, along with
our current progress studying a canonical Dirac operator\, which gives us
compact quantum metric spaces in the sense of Rieffel.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160204T143000
DTEND;TZID=America/New_York:20160204T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29250
SUMMARY:Noncommutative Geometry Seminar - Operator spaces\, representations
of reductive groups\, and a Kasparov product
DESCRIPTION:Seminar: Noncommutative Geometry Seminar\nTitle: Operator space
s\, representations of reductive groups\, and a Kasparov product\nSpeaker:
Nigel Higson\, Penn State\nAbstract: This is joint work with Pierre Clare
and Tyrone Crisp. Lafforgue gave a geometric proof of the Connes-Kasparov
conjecture for real reductive groups (a representation-theoretic proof ha
d previously been sketched by Wassermann) and in his 2002 ICM address he u
sed this as the starting point for a new approach to Harish-Chandra's clas
sification of the discrete series. The new approach requires the computati
on of some Kasparov products\, which are fortunately easy because the unde
rlying Hilbert spaces are finite-dimensional. It is interesting to attempt
to extend Lafforgue's approach to limits of discrete series\, since these
account for the rest of the K-theory of the reduced group C*-algebra. But
now the Kasparov products are more difficult\, because among other things
the underlying Hilbert spaces are infinite-dimensional\, and are only geo
metrically defined as operator spaces (the Hilbert space structure require
s the Plancherel theorem).
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160218T143000
DTEND;TZID=America/New_York:20160218T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29254
SUMMARY:Noncommutative Geometry Seminar - Correspondances between (local) i
ndex theories
DESCRIPTION:Seminar: Noncommutative Geometry Seminar\nTitle: Correspondance
s between (local) index theories\nSpeaker: Rudy Rodsphon\, Vanderbilt Univ
ersity\nAbstract: In the last twenty years\, dramatic progress have been m
ade in (local) index theory\, through many (apparently) different (cyclic)
cohomological methods (heat kernel\, invariance theory\, supersymmetry\,
deformation quantization\, spectral triples ...)\, leading to different ki
nd of results in different directions (group actions and transverse geomet
ry of foliations\, symplectic geometry and formality conjectures ...). We
shall try to explain that actually\, all these apparently different points
of views are in some way equivalent\, and may be "mapped" from one to ano
ther\, leading to a unified picture of local index theory. If time permits
\, we shall discuss how this might potentially bring new insights on K-the
oretical methods to index theory by relating tangent groupoid approaches t
o Kasparov's KK-theoretical methods. Our hope is to bring a more complete
understanding of index theory\, leading to further advances in what we alr
eady know (index theorems as well as applications) or even better\, discov
er new connections to other fields.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160303T143000
DTEND;TZID=America/New_York:20160303T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29258
SUMMARY:Noncommutative Geometry Seminar - Mackey-Higson analogy as deformat
ion of D-modules
DESCRIPTION:Seminar: Noncommutative Geometry Seminar\nTitle: Mackey-Higson
analogy as deformation of D-modules\nSpeaker: Shilin Yu\, University of Pe
nnsylvania\nAbstract: Inspired by observations of Mackey and Connes-Kaspar
ov\, Higson suggested there is a bijection between the tempered dual of a
semisimple Lie group and the unitary dual of its Cartan motion group. He s
howed that this is true even at the level of admissible duals when the gro
up is complex semisimple. Recently Afgoustidis has built such a bijection
based on the work of Knapp-Zuckerman and Vogan. I propose to understand th
is bijection for each individual representation via deformation of D-modul
es over the flag variety\, hence giving an algebro-geometric interpretatio
n of the Mackey-Higson phenomenon.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160310T143000
DTEND;TZID=America/New_York:20160310T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29260
SUMMARY:Noncommutative Geometry Seminar - No Seminar
DESCRIPTION:Seminar: Noncommutative Geometry Seminar\nTitle: No Seminar\nSp
eaker: Spring Break
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160317T143000
DTEND;TZID=America/New_York:20160317T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29262
SUMMARY:Noncommutative Geometry Seminar - Invariant and characteristic rand
om subgroups
DESCRIPTION:Seminar: Noncommutative Geometry Seminar\nTitle: Invariant and
characteristic random subgroups\nSpeaker: Rostyslav Kravchenko\, Northwest
ern\nAbstract: We will discuss the notions of invariant and characteristic
random subgroups and their connections with dynamical systems and geometr
ic group theory.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160331T143000
DTEND;TZID=America/New_York:20160331T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29266
SUMMARY:Noncommutative Geometry Seminar - Relative higher index and variati
on of fundamental group
DESCRIPTION:Seminar: Noncommutative Geometry Seminar\nTitle: Relative highe
r index and variation of fundamental group\nSpeaker: John Roe\, PSU
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160407T143000
DTEND;TZID=America/New_York:20160407T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29268
SUMMARY:Noncommutative Geometry Seminar - Groupoids\, pseudodifferential op
erators and index theory
DESCRIPTION:Seminar: Noncommutative Geometry Seminar\nTitle: Groupoids\, ps
eudodifferential operators and index theory\nSpeaker: Erik van Erp\, Dartm
outh College
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160414T143000
DTEND;TZID=America/New_York:20160414T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29270
SUMMARY:Noncommutative Geometry Seminar - Singular foliations and character
istic classes
DESCRIPTION:Seminar: Noncommutative Geometry Seminar\nTitle: Singular folia
tions and characteristic classes\nSpeaker: Jonathan Block\, University of
Pennsylvania\nAbstract: We revisit the classic paper of Baum and Bott on s
ingular foliations and calculating the characteristic classes of certain b
undles from the singular set of the foliation.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160421T143000
DTEND;TZID=America/New_York:20160421T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29272
SUMMARY:Noncommutative Geometry Seminar - TBA
DESCRIPTION:Seminar: Noncommutative Geometry Seminar\nTitle: TBA\nAbstract
Link: http://
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160428T143000
DTEND;TZID=America/New_York:20160428T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29274
SUMMARY:Noncommutative Geometry Seminar - Modular curvature for toric nonco
mmutative manifolds
DESCRIPTION:Seminar: Noncommutative Geometry Seminar\nTitle: Modular curvat
ure for toric noncommutative manifolds\nSpeaker: Yang Liu\, Ohio State Uni
versity\nAbstract: A general question behind the talk is to explore a good
notion for intrinsic curvature in the framework of noncommutative geometr
y started by Alain Connes in the 80’s. This has only recently begun (20
14) to be comprehended via the intensive study of modular geometry on the
noncommutative two tori. In this talk\, we extend recent results on the
modular geometry on noncommutative two tori to a larger class of noncommut
ative manifolds: toric noncommutative manifolds. The first contribution o
f my work is a pseudo differential calculus which is suitable for spectra
l geometry on toric noncommutative manifolds. As a main application\, we d
erive a general expression for the modular curvature with respect to a con
formal change of metric on toric noncommutative manifolds. By specializin
g our results to the noncommutative two and four tori\, we recover the m
odular curvature functions found in previous works. An important techni
cal aspect of the computation is that it is free of computer assistance.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160505T143000
DTEND;TZID=America/New_York:20160505T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29276
SUMMARY:Noncommutative Geometry Seminar - TBA
DESCRIPTION:Seminar: Noncommutative Geometry Seminar\nTitle: TBA\nAbstract
Link: http://
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160512T143000
DTEND;TZID=America/New_York:20160512T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29278
SUMMARY:Noncommutative Geometry Seminar - TBA
DESCRIPTION:Seminar: Noncommutative Geometry Seminar\nTitle: TBA\nAbstract
Link: http://
END:VEVENT
END:VCALENDAR