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BMS Fridays

Viazovska and audience © Kay Herschelmann/BMSTypically, there is a MATH+ colloquium every other Friday afternoon at Urania during term time. Friday colloquia usually start at 2:15 pm. Tea and cookies are served before each talk at 1:00 pm. Due to the spread of Covid-19 we will offer only online talks in the winter semester 2020/21 and summer semester 2021.


MATH+ Fridays in the winter semester 2020/21:

  • 6 November: MATH+ Day
  • 20 November: tba
  • 27 November: Elisabetta Rocca (U Pavia)
  • 11 December: Amie Wilkinson (U Chicago)
  • 8 January: tba
  • 22 January: tba
  • 5 February: tba
  • 19 February: tba


MATH+ Fridays in the summer semester 2021:

  • 16 April: Maria Chudnovsky (Princeton U) - Kovalevskaya Lecture
  • 7 May: tba
  • 21 May: tba
  • 28 May: Euler Lecture: tbc


For further seminars and colloquia, see also the Berlin-Potsdam Mathematics Calendar.

The MATH+ Fridays are usually preceded by the "What is...?" seminars organized by students for students.


What is the concept behind MATH+ Fridays?

The Friday colloquia represent a common meeting point for Berlin mathematics at Urania Berlin: a colloquium with broad emanation that permits an overview of large-scale connections and insights. In thematic series, the conversation is about “mathematics as a whole,” and we hope to be able to witness some breakthroughs. Hardly anyone knows that Grigory Perelman first presented his famous proof of the Poincaré Conjecture to the mathematical public in Berlin, at the PhD student seminar meeting of professors Huisken and Ecker at FU Berlin.

Behind the scenes at MATH+ Fridays, a number of seminars, workshops, courses, and conversation opportunities are on offer. For instance, the lunches prior to the “Sonia Kovalevskaya Colloquia” are a place to discuss the career paths of successful women in mathematics. Seminars and courses that BMS students can request will discuss such topics as presentation training, mathematical typography, library research, and writing style. For these, please have a look at our Academics page.

Hairer © Kay Herschelmann/BMS            Saint- Raymond © Kay Herschelmann/BMS           Audience © Charles Yunck

Summer Semester 2020

We had to cancel the MATH+ Fridays due to the spread of Covid-19 in the Summer Semester 2020. We could offer one online talk instead.


Winter Semester 2019/20


Summer Semester 2019


Winter Semester 2018/19


Summer Semester 2018


Winter Semester 2017/18


Summer Semester 2017


Winter Semester 2016/17


Summer Semester 2016 

Winter Semester 2015/16

Summer Semester 2015


Winter Semester 2014/15


Summer Semester 2014


Winter Semester 2013/14


Summer Semester 2013


Winter Semester 2012/13


Summer Semester 2012


Winter Semester 2011/12


Summer Semester 2011


Winter Semester 2010/11


Summer Semester 2010


Winter Semester 2009/10


Summer Semester 2009


Winter Semester 2008/09

      • October 17, 2008: Norbert Schappacher (Strasbourg): "Political Space Curves"
      • October 31, 2008: Martin Skutella (TU Berlin): "Flows over time - classical and more recent results"
      • November 14, 2008: Michael Rapoport (Bonn): "On the zeta function of Shimura varieties"
      • November 28, 2008: Wolfgang Lück (Münster): "Topological Rigidity"
      • December 12, 2008: Jay Jorgenson (City College of New York): "Identities in Euclidean and Hyperbolic Geometry which follow from Existence and Uniqueness Theorems"
      • January 9, 2009: Susanne Albers (Freiburg): "Network Design Games"
      • January 23, 2009: Annette Werner (Frankfurt), Kovalevskaya Colloquium: "Bruhat-Tits buildings and their compactifications" February 6, 2009: Gil Kalai (Hebrew University Jerusalem): Helly-type theorems

Summer Semester 2008

      • April 25, 2008: Gerard van der Geer (Amsterdam): Modular forms and counting curves over finite fields
      • May 9, 2008: Wolfgang Dahmen (Aachen):Compressed Sensing
      • May 23, 2008: Euler Lecture in Potsdam: Michael Hopkins, Harvard University, Cambridge, MA, USA
      • June 6, 2008, Please note: change of location - Kleist-Saal at Urania:Hans Föllmer (HU Berlin): Bright spotlights, dark shadows: probabilistic aspects of financial risk
      • June 20, 2008: Eva Bayer-Fluckiger (EPFL) Kovalevskaya Colloquium: "The Euclidean division"
      • July 4, 2008: BMS visits the Wissenschaftssommer (Summer of Science) in Leipzig
      • July 11, 2008: Opening of the BMS Lounge at FU with BMS Summer Party (Sommerfest)!


Winter Semester 2007/08

      • October 26, 2007: BMS Professor Herbert Edelsbrunner (Duke/Berlin):Measuring scale before simplification
      • November 2, 2007: Wendelin Werner (Université Paris Sud) Coloring at random
      • November 9, 2007: Rainer Weissauer (Heidelberg) Coverings of Riemann surfaces and a new kind of Galois groups
      • November 23, 2007, at HU Adlershof: Claus Michael Ringel (Bielefeld): Invariant subspaces of nilpotent operators
      • December 14, 2007:  Ilka Agricola (HU Berlin): The E8 challenge
      • January 11, 2008: Rupert Klein (FU Berlin): Multiple scales in Weather and Climate
        January 25, 2008: Ruth Kellerhals (Fribourg) Hyperbolic isometry groups and small volume (Kovalevskaya Colloquium) 
      • February 8, 2008: BMS Professor Shmuel Friedland (Chicago/Berlin): Counting matchings in graphs, with applications to the monomer-dimer models


Summer Semester 2007

      • May 4, 2007, 10:00-12:00: a LaTeX workshop with Christoph Eyrich
        Colloquium at 14:00: George Francis (U Illinois, Urbana-Champaign):
        Designing computer animations with chalk and blackboard
      • May 11, 2007, 2007, Kovalevskaya Colloquium by Olga Holtz (TU Berlin):
        "How to multiply matrices fast (and why bother)?''
      • May 25, 2007, in Potsdam: Euler-Vorlesung in Sanssouci
      • June 8-10, 2007, at TU Berlin: Graphics workshop, with Bill Casselman (UBC, Vancouver),
        the cover graphics editor for the Notices of the AMS
      • June 8, 2007, at TU Berlin, MA 043: Alexander Barvinok (U Michigan, Ann Arbor):
        The asymptotic equivalence of counting and optimization
      • June 15, 2007: Bill Casselman (UBC, Vancouver): An illustrated history of geometry
      • June 22, 2007: Andrei Okounkov (Princeton): Box counting
      • June 29, 2007, at the BMS Loft of the Urania: Albert Cohen (Paris 6):
        Harmonic Analysis and Image Processing
      • July 13, 2007: Bernd Sturmfels (Berkeley/Berlin): Algebraic Degree of Semidefinite Programming
      • July 20, 2007: Jan Kristensen (Oxford/HU Berlin): The Problem of Regularity in the Calculus of Variations


Winter Semester 2006/07 

    • October 20, 2006: Jürg Kramer : Overview of the BMS
    • December 1: Excursion to Dresden, Guided tour to the Mathematisch-physikalischer Salon of the Zwinger
    • John Sullivan, TU Berlin: Geometric knot theory
    • November 3, 2006: Peter Schröder, CalTech: "Discrete Exterior Calculus with an application to circulation preserving simplicial fluid simulation"
    • November 17, 2006: The first Kovalevskaya Colloquium: Hélène Esnault, Essen: "Congruences for the number of rational points of varieties defined over finite fields"
    • November 24: Robert Bryant, Duke University: "Aufwiedersehen Surfaces, Revisited"
    • December 15: Karl Sigmund, University of Vienna: "Gödel's Vienna" (celebrating the end of the Gödel year)
    • January 19, 2007: The first Mathematics as a Whole Colloquium: Martin Aigner, FU Berlin:"Volumes, polyhedra, and prime numbers: A common combinatorial look"
    • February 2,2007: morning program: BMS-Workshop on Presentation Training with Brigitte Lutz-Westphal
      Eberhard Knobloch: "Euler and Leibniz on the infinite" (celebrating Euler year 2007)
    • February 12/13, all day, at the BMS Loft of Urania: BMS Days
    • February 16: See the sea - Excursion to the Berlin Aquarium