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A Warm Welcome to the Department of Mathematics

 

The Department of Applied Mathematics is located on the Emmy Noether Campus (ENC) and

 

the Department of Mathematics Education in the Adolf-Reichwein Building (AR).

Emmy-Noether-Campus
Prof. Dr. Jörg Wills vor einem Bücherschrank.
Research

The Man Behind the Lonely Runner

Prof. Dr. Jörg Wills will speak at a conference in Rostock before mathematicians from around the world. The mathematics professor at the University of Siegen is nearly 90 years old. On the agenda is a problem that has occupied him for nearly six decades: the “Lonely Runner,” or the Lonely Runner Conjecture. Wills formulated it in 1967. The problem remains unsolved to this day.

Dr. Bernd Dreseler vor einem Bücherregal.

53 Years at the University of Siegen

For more than five decades, Prof. Dr. Bernd Dreseler has shaped the field of mathematics at the University of Siegen—as a researcher, university professor, and bridge-builder between academic knowledge and practical application. Now, at the age of 83, he is retiring from teaching for good.

Jubelnde AbsolventInnen
Campus Life
+ 4 more

Faculty IV's 2026 Annual Celebration

Natural Sciences and Technology School Annual Celebration: Sunshine, a Red Carpet, and Lots of Applause for Up-and-Coming Scholars

The School of Science and Technology at the University of Siegen celebrated its graduates and newly minted Ph.D. recipients in a festive setting. At the annual celebration in the Apollo Theater, the focus was on the achievements of the next generation of scientists—as well as awards for outstanding research and dedicated teaching.

The conditions could hardly have been better: Under bright sunshine and walking across a red carpet, guests streamed into the Apollo Theater. The anticipation for the highlight of the day—the ceremonial presentation of diplomas—was palpable. Even before the event began, many graduates took advantage of the photo backdrop featuring the sculpture of the faculty logo to take commemorative photos in their academic gowns and doctoral caps.

 

Lehrpreis Prof. Dr. Gregor Nickel

Prof. Dr. Gregor Nickel Teaching Award

Zwei Schülerinnen zeigen Papierquader, die sie beim Mathe-Tag gebastelt haben.

Numbers, puzzles, aha moments

More than 460 pupils from the region experienced mathematics up close at the Lower Castle Campus. At the Day of Mathematics, the University of Siegen showed how exciting and relevant numbers can be in everyday life. The occasion was the international Pi Day, which stands for the fascination of mathematics worldwide.

Der Dekan überreicht die Urkunde

25 years of commitment to the didactics of mathematics - Dr. Markus Helmerich celebrates his service anniversary

On 25 February 2026, Dr. Markus Helmerich celebrated 25 years of service. In a personal meeting at the deanery, the dean presented the anniversary certificate and paid tribute to Dr. Helmerich's many years of service.

Apollo Theater Siegen
Campus Life
+ 2 more

Teaching Award of the NT Schools 2026 - Nominate now!

Who particularly shapes your everyday study life? Who inspires with exciting, up-to-date content, a clear structure and innovative teaching ideas? The Teaching Award of the NT Schools 2026 recognizes professors who motivate students, teach in a practical way, promote independent learning and are committed to their cause. Now is your chance to make outstanding teaching visible - nominate your favorite!

Prof. Michel bei der Rosenmontagsvorlesung über Enterprise und Star Trek.

When mathematics meets the Enterprise

Full house on Shrove Monday: in the Lecture Hall Center at the Lower Castle Campus, there was no swaying, but rather interstellar calculations. Prof. Dr. Volker Michel showed why "Star Trek" has more to do with mathematics, physics and philosophy than even Mr. Spock would initially suspect.

Star Trek
General Public

Tribbles, Klingons, warp drive and other galactic mysteries

Rose Monday lecture

Contact the Department

Contact

Closed on October 23, 2026

 

 

Opening hours

Monday 08:30-12:30 Wednesday 08:30-12:30
13:00-15:00
Friday 08:30-12:00

Postal address

University of Siegen

Department of Mathematics
Emmy Noether Campus

3 Walter-Flex Street

57068 Siegen

Visitor address

University of Siegen

Department of Mathematics
Emmy Noether Campus

3 Walter-Flex Street

57068 Siegen

Secretariat

Department Secretariat:  
Sabine Grüber ENC-B 236 ✉

Department Spokesperson: 
Prof. Dr. Ingo Witzke AR-H 303 ✉

Deputy Department Spokesperson: 
Prof. Dr. Rob van Stee ENC-B 233 ✉