# Christoph Kreitz

> Ph.D. Fernuniversität Hagen 1984

**Wikidata**: [Q102163448](https://www.wikidata.org/wiki/Q102163448)  
**Source**: https://4ort.xyz/entity/christoph-kreitz

## Summary  
Christoph Kreitz is a German computer scientist and university teacher. He earned his Ph.D. at FernUniversität in Hagen in 1984 and has been a professor at the University of Potsdam since 2003, known for his research in theoretical computer science and for supervising several prominent doctoral students.

## Biography  
- **Born:** 24 November 1957, Düsseldorf, Germany  
- **Nationality:** German  
- **Education:**  
  - Ph.D., FernUniversität in Hagen (1984)  
  - Studies at RWTH Aachen University (dates not specified)  
- **Known for:** Research and teaching in computer science, especially theoretical aspects, and mentorship of doctoral candidates.  
- **Employer(s):**  
  - Technical University of Darmstadt (1989 – 1996)  
  - University of Potsdam (2003 – present)  
- **Field(s):** Computer science (theoretical computer science, algorithms, complexity)  

## Contributions  
Christoph Kreitz has built a substantial scholarly record in theoretical computer science, reflected in his DBLP author profile (k/ChristophKreitz) and a Mathematics Genealogy Project entry (ID 49561). His research has produced numerous peer‑reviewed articles that address algorithmic theory and computational complexity, contributing to the academic discourse in these areas. As a professor at the University of Potsdam, he has taught undergraduate and graduate courses, shaping curricula that integrate rigorous theoretical foundations with practical applications. Kreitz has also supervised a cohort of doctoral students who have gone on to become active researchers, including Daniel Simon Korn (Ph.D., Technische Universität Darmstadt, 1998), Stephan Schmitt, Ozan Hafızoğulları, and Jens Otten (Ph.D., Universität Potsdam, 2013). Through his mentorship, he has helped expand the German computer‑science research community and fostered collaborations that extend beyond his own publications.

## FAQs  
### Q: What is Christoph Kreitz’s primary academic discipline?  
A: He is a computer scientist specializing in theoretical computer science and algorithms.  

### Q: Where does Christoph Kreitz work today?  
A: Since 2003 he has been a professor at the University of Potsdam in Germany.  

### Q: Who supervised Christoph Kreitz’s doctoral research?  
A: His doctoral advisor was Klaus Weihrauch, a noted computer scientist.  

### Q: Which notable doctoral students were supervised by Kreitz?  
A: Among his students are Daniel Simon Korn, Stephan Schmitt, Ozan Hafızoğulları, and Jens Otten.  

### Q: Does Christoph Kreitz have a public publication record?  
A: Yes, his publications are indexed in DBLP under the author ID “k/ChristophKreitz.”  

## Why They Matter  
Christoph Kreitz’s impact on computer science stems from both his research contributions and his role as an educator. His work on algorithmic theory has added depth to the understanding of computational complexity, influencing subsequent studies and informing course material across German universities. By supervising a generation of doctoral candidates, he has multiplied his influence, as his students continue to advance the field in academia and industry. Kreitz’s long‑standing position at the University of Potsdam has helped establish the institution as a hub for theoretical computer science in Europe, fostering collaborations and attracting talent. Without his combined scholarly output and mentorship, the German theoretical computer‑science community would be less cohesive and its research output more fragmented.  

## Notable For  
- Earning a Ph.D. in computer science from FernUniversität in Hagen in 1984.  
- Holding a professorship at the University of Potsdam since 2003.  
- Supervising doctoral students who have become recognized computer scientists (e.g., Daniel Simon Korn, Jens Otten).  
- Maintaining an extensive publication record indexed in DBLP (author ID k/ChristophKreitz).  
- Being listed in the Mathematics Genealogy Project (ID 49561).  

## Body  

### Early Life and Education  
Christoph Kreitz was born on 24 November 1957 in Düsseldorf, Germany. He pursued higher education at RWTH Aachen University before completing his doctoral studies at FernUniversität in Hagen, receiving his Ph.D. in 1984 under the supervision of Klaus Weihrauch.  

### Academic Career  
- **Technical University of Darmstadt (1989‑1996):** Kreitz began his academic career as a researcher and lecturer, contributing to the university’s computer‑science department.  
- **University of Potsdam (2003‑present):** Appointed as a professor, he leads the Theoretical Informatics group, teaches core courses in algorithms and complexity, and oversees doctoral research.  

### Research and Publications  
Kreitz’s research focuses on theoretical aspects of computer science, including algorithm design, computational complexity, and formal methods. His work appears in leading conferences and journals, as documented in his DBLP profile. The breadth of his publications demonstrates a sustained contribution to advancing foundational knowledge in the field.  

### Doctoral Supervision  
Kreitz has guided several Ph.D. candidates to completion:  
- **Daniel Simon Korn** (Technische Universität Darmstadt, 1998) – later a computer‑science researcher.  
- **Stephan Schmitt** – contributed to algorithmic theory.  
- **Ozan Hafızoğulları** – specialized in formal verification.  
- **Jens Otten** (Universität Potsdam, 2013) – now a recognized computer scientist.  

His mentorship emphasizes rigorous proof techniques and the practical relevance of theoretical results.  

### Professional Affiliations and Recognition  
Kreitz is listed in the Mathematics Genealogy Project (ID 49561) and holds a DBLP author identifier, reflecting his integration into the global computer‑science research community. He is fluent in English and German, enabling collaboration across international projects.  

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## References

1. [Source](https://www.cs.uni-potsdam.de/ti/kreitz/PDF/cv-english.pdf)
2. Mathematics Genealogy Project