BEGIN:VCALENDAR
PRODID:-//PSU Mathematics Department//Seminar iCalendar Generator//EN
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CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:GAP 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
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BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:19701101T020000
RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160112T143000
DTEND;TZID=America/New_York:20160112T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29243
SUMMARY:GAP Seminar - Restrictions of infinite dimensional representations
DESCRIPTION:Seminar: GAP Seminar\nTitle: Restrictions of infinite dimension
al representations\nSpeaker: Birgit Speh\, Cornell\nAbstract Link: http://
www.dropbox.com/s/ggqs6pzne07kyo5/Abstract%20Penn%20seminar.pdf?dl=0
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160119T143000
DTEND;TZID=America/New_York:20160119T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29245
SUMMARY:GAP Seminar - Weighted manifolds and n-fold vector bundles
DESCRIPTION:Seminar: GAP Seminar\nTitle: Weighted manifolds and n-fold vect
or bundles\nSpeaker: Liza Vishnyakova\, University of São Paulo\nAbstract
Link: http://www.dropbox.com/s/ojh5bobo7t4jeiv/abstract_Liza%20Penn.pdf?d
l=0
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160126T143000
DTEND;TZID=America/New_York:20160126T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29247
SUMMARY:GAP Seminar - Separation of variables\, superintegrability and Bôc
her contractions
DESCRIPTION:Seminar: GAP Seminar\nTitle: Separation of variables\, superint
egrability and Bôcher contractions\nSpeaker: Willard Miller\, University
of Minnesota\nAbstract: Quantum superintegrable systems are exactly solvab
le quantum eigenvalue problems. Their solvability is due to symmetry\,\n\n
but the symmetry is often ``hidden''. The symmetry generators of 2nd order
superintegrable systems in 2 dimensions close under\ncommutation to defin
e quadratic algebras\, a generalization of Lie algebras. The irreducible r
epresentations of these algebras yields\nimportant information about the e
igenvalues and eigenspaces of the quantum systems. Distinct superintegrabl
e systems\n\nand their quadratic algebras are related by geometric contrac
tions\, induced by generalized Inönü-Wigner Lie algebra contractions\nw
hich have important physical and geometric implications\, such as the Aske
y scheme for obtaining all hypergeometric orthogonal\npolynomials as limit
s of Racah/Wilson polynomials. This can all be unified by ideas first int
roduced in the 1894 thesis of Bôcher to\nstudy R- separable solutions of
the wave equation.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160202T143000
DTEND;TZID=America/New_York:20160202T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29249
SUMMARY:GAP Seminar - Jacobi manifolds and their coisotropics
DESCRIPTION:Seminar: GAP Seminar\nTitle: Jacobi manifolds and their coisotr
opics\nSpeaker: Luca Vitagliano\, Università degli Studi di Salerno\nAbst
ract: Jacobi structures on manifolds were introduced by Kirillov and Lichn
erowicz in the 70s. They generalize and unify several interesting geometri
c structures like Poisson\, contact and locally conformal symplectic struc
tures. The talk is divided into two parts. In the first part I will review
the fundamentals of the geometry of Jacobi structures. In particular\, I
will present several examples and a local form theorem. The second part is
more technical and it is based on joint work with Hông Vân Lê\, Yong-G
eun Oh and Alfonso Tortorella: I will discuss coisotropic submanifolds of
Jacobi manifolds and the L-infinity algebra controlling their formal defor
mations.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160209T143000
DTEND;TZID=America/New_York:20160209T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29251
SUMMARY:GAP Seminar - Hamiltonian and Lagrangian structures in an integrabl
e hierarchy: space-time duality
DESCRIPTION:Seminar: GAP Seminar\nTitle: Hamiltonian and Lagrangian structu
res in an integrable hierarchy: space-time duality\nSpeaker: Vincent Caudr
elier\, City University of London\nAbstract: In the context of integrable
systems\, the object known as the classical r-matrix emerged from two rema
rkable discoveries: 1) integrable PDEs can be written as a Hamiltonian sys
tem by introducing an appropriate Poisson bracket of the (infinite dimensi
onal) phase space\; 2) combined with the Lax pair formulation and motivate
d by the question of canonical quantization of such Hamiltonian systems\,
certain fundamental Poisson brackets can be written as a commutator involv
ing a special matrix (the r matrix). Understanding these observations on a
fundamental level led to the discovery of Poisson-Lie groups and the mode
rn theory of classical integrable systems. However\, from the point of vie
w of the independent variables (x\,t) involved in the original PDEs\, the
entire theory is asymmetric. It is based only on "one half" of the Lax pai
r: the matrix describing the space evolution in the auxiliary problem at f
ixed time. In this talk\, I will introduce some motivations to treat both
independent variables x and t on equal footing. Using ideas from covariant
field theory\, the following observation will be made: it is possible to
construct a new Poisson bracket on the phase space of an integrable hierar
chy for which the fundamental Poisson brackets of the other half of the La
x pair have exactly the same structure as the usual one\, with the same r
matrix. Perhaps ironically\, this observation actually raises more questio
ns than it answers and I will mention some of them.
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160216T143000
DTEND;TZID=America/New_York:20160216T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29253
SUMMARY:GAP Seminar - Jordan Groups\, Abelian Varieties and Conic Bundles
DESCRIPTION:Seminar: GAP Seminar\nTitle: Jordan Groups\, Abelian Varieties
and Conic Bundles\nSpeaker: Yuri Zarhin\, Penn State\nAbstract: A classica
l theorem of Jordan asserts that each finite subgroup of the complex gener
al linear group GL(n) is ``almost commutative": it contains a commutative
normal subgroup \nwith index bounded by a universal constant that depends
only on n.\nWe discuss an analogue of this property for the groups of bira
tional (and biregular) automorphisms of complex algebraic varieties and th
e groups of diffeomorphisms of real manifolds. \n\nThis is a report on a j
oint work with Tatiana Bandman (Bar-Ilan).
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160223T143000
DTEND;TZID=America/New_York:20160223T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29255
SUMMARY:GAP Seminar - TBA
DESCRIPTION:Seminar: GAP Seminar\nTitle: TBA\nAbstract Link: http://
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160301T143000
DTEND;TZID=America/New_York:20160301T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29257
SUMMARY:GAP Seminar - TBA
DESCRIPTION:Seminar: GAP Seminar\nTitle: TBA\nSpeaker: Yanli Song\, Univers
ity of Toronto
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160308T143000
DTEND;TZID=America/New_York:20160308T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29259
SUMMARY:GAP Seminar - TBA
DESCRIPTION:Seminar: GAP Seminar\nTitle: TBA\nSpeaker: Spring Break
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160315T143000
DTEND;TZID=America/New_York:20160315T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29261
SUMMARY:GAP Seminar - TBA
DESCRIPTION:Seminar: GAP Seminar\nTitle: TBA\nSpeaker: Nate Brown\, Penn St
ate
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160322T143000
DTEND;TZID=America/New_York:20160322T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29263
SUMMARY:GAP Seminar - TBA
DESCRIPTION:Seminar: GAP Seminar\nTitle: TBA\nAbstract Link: http://
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160329T143000
DTEND;TZID=America/New_York:20160329T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29265
SUMMARY:GAP Seminar - TBA
DESCRIPTION:Seminar: GAP Seminar\nTitle: TBA\nAbstract Link: http://
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160405T143000
DTEND;TZID=America/New_York:20160405T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29267
SUMMARY:GAP Seminar - TBA
DESCRIPTION:Seminar: GAP Seminar\nTitle: TBA\nAbstract Link: http://
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160412T143000
DTEND;TZID=America/New_York:20160412T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29269
SUMMARY:GAP Seminar - TBA
DESCRIPTION:Seminar: GAP Seminar\nTitle: TBA\nSpeaker: Jonathan Block\, UPE
NN
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160419T143000
DTEND;TZID=America/New_York:20160419T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29271
SUMMARY:GAP Seminar - TBA
DESCRIPTION:Seminar: GAP Seminar\nTitle: TBA\nSpeaker: Tony Giaquinto\, Lo
yola University Chicago
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160426T143000
DTEND;TZID=America/New_York:20160426T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29273
SUMMARY:GAP Seminar - TBA
DESCRIPTION:Seminar: GAP Seminar\nTitle: TBA\nSpeaker: Zheng Hua\, Universi
ty of Hong Kong
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20160503T143000
DTEND;TZID=America/New_York:20160503T153000
LOCATION:MB106
URL:http://www.math.psu.edu/seminars/meeting.php?id=29275
SUMMARY:GAP Seminar - TBA
DESCRIPTION:Seminar: GAP Seminar\nTitle: TBA\nAbstract Link: http://
END:VEVENT
END:VCALENDAR