# How useful is business math these days

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### The Saxon Geometry Day took place on December 8th and 9th, 2016 in Chemnitz - scientists presented the latest research results

Euclidean geometry as the oldest exact science in human history originated around 2500 years ago in ancient Greece. The subsequent triumphant advance of the deductive method developed from it as the foundation of mathematics and all exact sciences made it possible anew to organize the enriched knowledge by means of a strictly defined conceptual apparatus and set of statements and to build it up hierarchically. Today geometry is still of central importance within mathematics and a large number of sub-areas have developed accordingly. The most active include algebraic geometry, differential and Riemannian geometry (which are the foundation of general relativity), and discrete, algorithmic and convex geometry. Geometry can also be viewed in general as one of the fundamental approaches in mathematics, in the spirit of the mathematician Alfred Clebsch, who said: "It is the joy of shape in a higher sense that makes the geometer!" In this general form, geometric knowledge and adequate methods are increasingly required nowadays - for example in disciplines of applied mathematics (optimization, mathematical physics), theoretical physics (cosmology, superstring theory), medicine (computer tomography, modeling of joint prostheses) and numerous engineering sciences ( CAGD, architecture and statics).

Most of the geometrical sub-areas mentioned are included in the fields of work of mathematicians doing research in Saxony, Saxony-Anhalt and Thuringia. In order to keep in touch with one another despite the constantly increasing specialization, a two-day geometry conference is organized every year in the run-up to Christmas, which takes almost all of the above-mentioned aspects into account and also gives young scientists the opportunity to present their research results to an appointed committee.

The conference locations are the universities in Chemnitz, Dresden, Jena, Leipzig and Magdeburg and the conference participants come from all over Germany and abroad. This year's "Saxon Geometry Day" took place on December 8th and 9th at the TU Chemnitz. The organization was jointly organized by Christian Lehn (Junior Professorship for Theoretical Mathematics), Horst Martini (Professorship for Geometry), Christian Sevenheck (Professorship for Algebra) and Thomas Jahn (member of the professorship for geometry). 40 participants were welcomed to this year's meeting in Chemnitz. The two conference days were followed by plenary lectures by Prof. Dr. Bernd Sturmfels (University of California, Berkeley, USA) and Dr. Thomas Reichelt (University of Heidelberg) initiated. In addition, there were around 20 shorter lectures on many current areas of geometry. The intensive scientific discussions during and after the lectures and the exchange of new ideas were found to be extremely productive and stimulating by the participants.

The cooperation with the Max Planck Institute for Mathematics in the Natural Sciences in Leipzig, to which Prof. Bernd Sturmfels will change as director next year, is of particular importance for the Faculty of Mathematics at Chemnitz University of Technology.

**additional Information** can be found on the homepage of the Saxon Geometry Day.

**Mario Steinebach**

09.12.2016

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Note: The TU Chemnitz is present in many media. The media review gives an impression of how they report about the university.

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