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Talks and seminars, possibly part of a conference or series.

Some aspects of exceptional collections on (rational) surfaces

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Speaker: 
Markus Perling
Affiliation: 
z.Z. MPI
Date: 
Thu, 2013-04-25 10:30 - 12:00
Location: 
MPIM Lecture Hall
Parent event: 
Seminar Algebraic Geometry (SAG)

Determinantal Barlow surfaces and phantom categories

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Speaker: 
Pawel Sosna
Affiliation: 
Hamburg
Date: 
Thu, 2013-04-18 10:30 - 12:00
Location: 
MPIM Lecture Hall
Parent event: 
Seminar Algebraic Geometry (SAG)

Determinantal Barlow surfaces and phantom categories I will report on the construction of an exceptional collection of maximal length 11 on the Barlow surface S. This can be used to show that in a small neighbourhood of S in the moduli space of determinantal Barlow surfaces, the generic surface has a semiorthogonal decomposition of its derived category into a length 11 exceptional sequence and a category with trivial Grothendieck group and Hochschild homology, called a phantom category. This is joint work with Christian B?hning, Hans-Christian Graf von Bothmer and Ludmil Katzarkov.

Equivariant Morse theory

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Speaker: 
J. Loeffler
Date: 
Mon, 2013-04-15 14:15 - 15:45
Location: 
MPIM Seminar Room
Parent event: 
IMPRS-seminar on moduli of G-bundles

The birth of DST: Bing's 1952 exotic involution of the 3-sphere

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Speaker: 
R. Edwards
Date: 
Mon, 2013-04-15 12:00 - 13:30
Location: 
MPIM Lecture Hall
Parent event: 
IMPRS Minicourse
Parent event: 
Lecture Series on Bing topology and Casson handles
Video: 
video/mp4 icon20130415_edwards1a.mp4
video/mp4 icon20130415_edwards1b.mp4

New guests at the MPI

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Speaker: 
Fu-Tsun Wei, Mehdi Tavakol, Mark Powell
Date: 
Thu, 2013-04-18 15:00 - 16:00
Location: 
MPIM Lecture Hall
Parent event: 
MPI-Oberseminar

K3 Surfaces of High Picard Rank

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Speaker: 
Adiran Clingher
Affiliation: 
U of Missouri - St. Louis/MPI
Date: 
Tue, 2013-04-16 15:00 - 15:50
Location: 
MPIM Lecture Hall
Parent event: 
Seminar on Algebra, Geometry and Physics

The talk will focus on a special class of complex algebraic K3 surfaces of Picard rank 16 or higher. I will discuss a classification of these objects in terms of modular forms of appropriate type.

Topology, rigid cosymmetries and linearization instability in higher gauge theories

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Speaker: 
Igor Khavkine
Affiliation: 
Inst. for Theoretical Physics, Utrecht U
Date: 
Tue, 2013-04-16 14:00 - 14:50
Location: 
MPIM Lecture Hall
Parent event: 
Seminar on Algebra, Geometry and Physics

We consider a class of non-linear PDE systems, whose equations possess Noether identities (the equations are redundant), including non-variational systems (not coming from Lagrangian field theories), where Noether identities and infinitesimal gauge transformations need not be in bijection. We also include theories with higher stage Noether identities, known as higher gauge theories (if they are variational).

tba

Posted in
Speaker: 
James Wallbridge
Affiliation: 
MPIM
Date: 
Wed, 2013-07-10 10:30 - 12:00
Location: 
MPIM Lecture Hall
Parent event: 
Higher Differential Geometry Seminar

Introduction and distribution of talks

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Speaker: 
C. Kaiser
Date: 
Mon, 2013-04-08 14:15 - 15:45
Location: 
MPIM Seminar Room
Parent event: 
IMPRS-seminar on moduli of G-bundles

IMPRS-seminar on moduli of G-bundles

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Date: 
Mon, 2013-04-08 14:15 - Fri, 2013-07-19 16:00
Location: 
MPIM Seminar Room
Details: 
Program and Abstracts of IMPRS-seminar on moduli of G-bundles

Topos Theory

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Speaker: 
David Carchedi
Affiliation: 
MPI
Date: 
Wed, 2013-04-10 16:15 - 17:15
Location: 
MPIM Seminar Room
Parent event: 
Master's Course on Topos Theory

Master's Course on Topos Theory

Posted in
Speaker: 
David Carchedi
Date: 
Wed, 2013-04-10 16:00 - Wed, 2013-07-17 18:00
Location: 
MPIM Seminar Room
Details: 
Program and Abstracts of Master's Course on Topos Theory

Discussion session (Semester on 4-manifolds)

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Date: 
Tue, 2013-05-14 10:30 - 12:00
Location: 
MPIM Seminar Room
Parent event: 
Discussion session (Semester on 4-manifolds)

Discussion session (Semester on 4-manifolds)

Posted in
Date: 
Tue, 2013-05-07 10:30 - 12:00
Location: 
MPIM Lecture Hall
Parent event: 
Discussion session (Semester on 4-manifolds)

Discussion session (Semester on 4-manifolds)

Posted in
Date: 
Fri, 2013-05-03 10:30 - 12:00
Location: 
MPIM Lecture Hall
Parent event: 
Discussion session (Semester on 4-manifolds)

Discussion session (Semester on 4-manifolds)

Posted in
Date: 
Tue, 2013-04-23 10:30 - 12:00
Location: 
MPIM Lecture Hall
Parent event: 
Discussion session (Semester on 4-manifolds)

Discussion session (Semester on 4-manifolds)

Posted in
Date: 
Tue, 2013-04-09 10:30 - 12:00
Location: 
MPIM Lecture Hall
Parent event: 
Discussion session (Semester on 4-manifolds)

Discussion session (Semester on 4-manifolds)

Posted in
Date: 
Tue, 2013-04-09 10:30 - Tue, 2013-05-21 12:00
Location: 
MPIM Lecture Hall
Details: 
Program and Abstracts of Discussion session (Semester on 4-manifolds)

A new (computer-friendly) approach to Morse--Novikov theory

Posted in
Speaker: 
Dan Burghelea
Affiliation: 
The Ohio St. U/MPI
Date: 
Thu, 2013-04-25 15:00 - 16:00
Location: 
MPIM Lecture Hall
Parent event: 
MPI-Oberseminar

Applications

Posted in
Speaker: 
Andras Stipsicz
Affiliation: 
MPI
Date: 
Fri, 2013-05-10 10:30 - 12:00
Location: 
MPIM Lecture Hall
Parent event: 
Combinatorial Heegaard-Floer Homology (Semester on 4-manifolds)
Parent event: 
Lecture Series on 4-manifolds

http://people.mpim-bonn.mpg.de/teichner/Math/4-Manifolds.html

Video: 
video/mp4 icon20130510_stipsicz4a.mp4
video/mp4 icon20130510_stipsicz4b.mp4
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