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Gauß in Bochum Grafik

Gauss in Bochum

The Gauss Lecture of the German Mathematical Society (DMV) is coming to Bochum and gives all those interested in mathematics the opportunity to experience lectures by renowned mathematicians live.

The German Mathematical Society (DMV) and the Faculty of Mathematics at Ruhr-Universität Bochum are inviting everyone with an interest in mathematics and space travel to this event on October 29, 2025.

Highlights include the Gauss Lecture by Helmut Hofer and a lecture by James L. Green, both of whom will use the example of space travel to show how mathematics can be inspired by other disciplines and pave the way to new horizons with their solutions to problems.

Details and registration

  • Time
    Wednesday, October 29, 2025, 4-7 p.m., followed by a reception until 8 p.m
  • Place
    Academy of the Ruhr-University in the O-Werk, Bochum
    (detailed directions can be found on the contact page of the academy)
  • Language
    The lectures will be held in English.
  • Registration
    Participation in the event is free of charge.

    Register now

Program

  • Welcome by the President of the German Mathematical Society (DMV) and the Rector of the Ruhr-Universität Bochum
  • Awarding of the von Kaven Prize
    The von Kaven Prize is an honorary prize awarded by the German Research Foundation to mathematicians working in the EU for outstanding scientific achievements.
  • Opening lecture "The Search for Life Beyond Earth" by James L. Green with Q&A session
    More about the speaker and lecture at the bottom of this page
  • Gauss lecture "Floer's Jungle" by Helmut Hofer with Q&A session
    More about the speaker and lecture at the bottom of this page

The event will be accompanied by music from Ivan Habernal and his jazz quartet.

Gauss lecture and talk

With the Gauss Lectures, the German Mathematical Society offers an overview lecture with renowned experts twice a year. The topics of the two lectures in Bochum are closely linked, with the speakers describing the connection between mathematics and space travel as follows:

  • "Mathematics seeds the promise and power of space exploration.
    It guides spacecraft to their destinations, determines the orbit and size of exoplanets, predicts future orbits of hazardous near-earth asteroids, tells us how to use gravitational chaos to conserve fuel, and turns the mysteries of the cosmos into navigable paths leading to fantastic new discoveries.
    Perhaps surprisingly, celestial mechanics has been for centuries the fertile testing ground for new mathematical ideas. As space exploration is an adventure, so is mathematical research. One cannot exist without the other." (James L. Green and Helmut Hofer)

about Helmut Hofer

The German-American mathematician is a professor at the Institute for Advanced Study in Princeton, USA. From 1989-1993 he was a professor at the Faculty of Mathematics at Ruhr University Bochum.

His discoveries and methods are used by researchers all over the world: Helmut Hofer is considered the founder of so-called symplectic topology, a field of research that combines mathematics and physics and helps to better understand structures and movements in complex spaces - such as planetary orbits.

about Helmut Hofer's Gauss lecture "Floer's Jungle"

The symplectic geometer Andreas Floer, in his short life (1956-1991), made seminal contributions that continue to reverberate through mathematics and physics. Aimed at a broad mathematically curious audience, "Floer's Jungle" describes the historical development of basic mathematical ideas.

Queen Dido’s problem (814 BC) of maximizing area enclosed by a given perimeter---an optimization problem---is the first instance of a variational problem.

Over the centuries it became clear that interesting variational problems are everywhere; mathematicians developed many ideas to deal with such problems, culminating in Floer’s breakthrough.

This lecture gives a glimpse of what doing mathematics looks and feels like---the messy, thrilling, often overwhelming process---and how the people who do it live, interact, rejoice, despair.

about James L. Green

The space physicist worked for NASA for over 40 years: Here he developed and managed the Space Physics Analysis Network, which provided scientists with access to data, and held management positions in the National Space Science Data Center (NSSDC), Space Science Data Operations Office and Science Proposal Support Office before being appointed NASA's Chief Scientist.

Under him, the Planetary Science Division successfully executed many missions, including sending probes to the Moon (Grail A and B), Pluto (New Horizon), Mercury (Messenger) and Jupiter (Juno), and landing the Mars Science Laboratory and Curiosity rover on Mars.

In his lecture "The Search for Life Beyond Earth" , Green reports on expeditions to Mars.

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