Archived Events

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Barwick’s Iterated Complete Segal Spaces and Simpson’s Segal n-Categories [2]

Posted in

Talk [3]

Speaker:

Bertram Arnold

Date:

Fri, 2013-05-17 13:30 - 15:00

Location:

MPIM Lecture Hall [4]

Parent event:

Student seminar on higher categories [5]

Barwic

Read more [2]

Geometric filtrations of string links and homology cylinders (Semester on 4-manifolds) [6]

Posted in

Talk [3]

Date:

Fri, 2013-05-17 10:30 - Tue, 2013-05-21 18:00

Location:

MPIM Lecture Hall [4]

Details:

Program [7] and Abstracts [8] of Geometric filtrations of string links and homology cylinders (Semester on 4-manifolds)

Tree homology and Whitney towers (Semester on 4-manifolds) [9]

Posted in

Seminar [10]

Date:

Fri, 2013-05-17 10:30 - Tue, 2013-05-21 18:00

Location:

MPIM Lecture Hall [4]

Details:

Program [11] and Abstracts [12] of Tree homology and Whitney towers (Semester on 4-manifolds)

Tree homology and a conjecture of Levine [13]

Posted in

Talk [3]

Speaker:

Jim Conant

Date:

Fri, 2013-05-17 10:30 - 12:00

Location:

MPIM Lecture Hall [4]

Parent event:

Tree homology and Whitney towers (Semester on 4-manifolds) [9]

In a joint project with Rob Schneiderman and Peter Teichner, we have analyzed the structure of the set of links up to "Whitney tower concordance." A crucial aspect of this analysis is a conjecture of Jerry Levine, which relates an algebraically defined Lie ring to a combinatorially defined abelian group of labeled trees modulo the IHX relation. This conjecture is easy to verify after tensoring with a field of characteristic $0$, but the general statement is not so easy.

Read more [13]

Representations from a metric point of view [14]

Posted in

Talk [3]

Speaker:

Alexander Lytchak

Affiliation:

Universität zu Köln

Date:

Thu, 2013-05-16 16:30 - 17:30

Location:

MPIM Lecture Hall [4]

Parent event:

Oberseminar Differentilageometrie [15]

In the talk I will discuss metric properties of quotient spaces of representations of compact groups
on Euclidean spaces.

Multiple harmonic sums, multiple zeta values and other related values [16]

Posted in

Talk [3]

Speaker:

Jianqiang Zhao

Affiliation:

Eckerd College on Florida´s Gulf Coast/MPI

Date:

Thu, 2013-05-16 15:00 - 16:00

Location:

MPIM Lecture Hall [4]

Parent event:

MPI-Oberseminar [17]

In this talk I will survey the historical and recent development in the study of multiple harmonic sums, multiple zeta values and some other related values such as multiple zeta star values and their q-analogs, mainly from the number theory point of view. Starting with Euler's decomposition formula for double zeta values I will conclude with a sketch of the Two-one formula conjectured by Ohno and Zudilin when they were here at MPIM in 2007. Most part of the talk will be accessible to the general
audience.

Noncommutative Local Monodromy Theorem [18]

Posted in

Talk [3]

Speaker:

Vadim Vologodsky

Affiliation:

U of Oregon/MPI

Date:

Thu, 2013-05-16 13:30 - 14:30

Location:

MPIM Lecture Hall [4]

Parent event:

Seminar on Algebra, Geometry and Physics [19]

Let X \to D^* be a smooth projective variety over the formal punctured disk D^*=spec K= spec \bC((t)).

The Griffiths-Landman-Grothendieck ``Local Monodromy Theorem'' asserts that

the Gauss-Manin connection on the de Rham cohomology H^*_{DR}(X/D^*) has a regular singularity at the origin and that the monodromy of this connection is quasi-unipotent.

Read more [18]

A Special Isogeny of K3 Surfaces [20]

Posted in

Talk [3]

Speaker:

Adrian Clingher

Affiliation:

U Missouri/MPI

Date:

Thu, 2013-05-16 10:30 - 12:00

Location:

MPIM Lecture Hall [4]

Parent event:

Seminar Algebraic Geometry (SAG) [21]

I will discuss a correspondence relating two specific classes of complex algebraic K3 surfaces. The first class consists of K3 surfaces polarized by the rank-sixteen lattice H+E_7+E_7. The second class consists of K3 surfaces obtained as minimal resolutions of double covers of the projective plane branched over a configuration of six lines. The correspondence underlies a geometric two-isogeny of K3 surfaces.

Intersection theory of Whitney towers [22]

Posted in

Talk [3]

Speaker:

Rob Schneiderman

Date:

Wed, 2013-05-15 16:30 - 18:00

Location:

MPIM Lecture Hall [4]

Parent event:

Intersection theory of Whitney towers (Semester on 4-manifolds) [23]

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

Topos Theory [24]

Posted in

Talk [3]

Speaker:

D. Carchedi

Date:

Wed, 2013-05-15 16:15 - 18:00

Location:

MPIM Seminar Room [25]

Parent event:

Master's Course on Topos Theory [26]