# Hansjörg Zeller

> Dr. rer. nat. Universität Stuttgart 1991

**Wikidata**: [Q102770258](https://www.wikidata.org/wiki/Q102770258)  
**Source**: https://4ort.xyz/entity/hansjorg-zeller

## Summary
Hansjörg Zeller is a computer scientist known for his academic work in the field. He obtained his Doctor of Natural Sciences (Dr. rer. nat.) degree from the University of Stuttgart in 1991. His doctoral research was conducted under the supervision of Andreas Reuter, a prominent German computer science professor.

## Biography
*   **Education:** Dr. rer. nat., University of Stuttgart (1991)
*   **Field(s):** Computer Science
*   **Academic Advisor:** Andreas Reuter
*   **Family Name:** Zeller

## Contributions
Based on the provided source material, Hansjörg Zeller's primary documented contribution to the field is the completion of his doctoral studies in natural sciences (Dr. rer. nat.) at the University of Stuttgart in 1991.

His academic work was significant enough to be cataloged in the Mathematics Genealogy Project under ID 224815. The completion of this degree involved mentorship from Andreas Reuter, a recognized authority in computer science. While specific industry outputs or patents are not detailed in the provided sources, the classification of his work within the "industrial sector" and "service sector" via the computer science classification suggests his expertise aligns with practical and applied computing disciplines.

## FAQs
### Q: What degree does Hansjörg Zeller hold?
A: Hansjörg Zeller holds a Dr. rer. nat. (Doctor of Natural Sciences) degree, which he obtained in 1991.

### Q: Where did Hansjörg Zeller study?
A: He studied at the University of Stuttgart in Germany.

### Q: Who was Hansjörg Zeller's doctoral advisor?
A: His doctoral advisor was Andreas Reuter, a German computer science professor.

## Why They Matter
Hansjörg Zeller represents a specific lineage of computer scientists educated at the University of Stuttgart during the early 1990s. His association with Andreas Reuter—a key figure in computer science known for his work in database systems and transaction processing—places Zeller within an academic tree that has influenced the development of modern computing infrastructures. His entry in the Mathematics Genealogy Project highlights his role in the continuity of academic mentorship and research within the natural sciences. By achieving his doctorate in 1991, he contributed to the era's expanding body of computer science knowledge during a pivotal time for the industry's growth.

## Notable For
*   Obtaining a Dr. rer. nat. degree in 1991.
*   Association with the University of Stuttgart.
*   Being a student of Andreas Reuter.
*   Inclusion in the Mathematics Genealogy Project (ID: 224815).

## Body
### Academic Credentials
Hansjörg Zeller is identified as a computer scientist who successfully completed his rigorous academic training at the University of Stuttgart. His final degree, the Dr. rer. nat. (Doctor rerum naturalium), was awarded in 1991. This specific doctoral title is commonly awarded in German universities for natural sciences and mathematics, indicating a strong foundation in scientific research methodology.

### Doctoral Mentorship
A key aspect of Zeller's academic profile is his doctoral advisor, Andreas Reuter. Professor Reuter is a noted German computer scientist and university teacher. The supervision of Zeller's work by Reuter suggests that Zeller's research likely adhered to high academic standards prevalent in the German computer science community at the time.

### Professional Classification
Zeller is classified under the profession of computer scientist. The metadata associated with this classification indicates relevance to both the industrial and service sectors, implying that his expertise or the discipline he practices has applications across these economic areas. He is further verified as a distinct individual entity in Wikidata and the Mathematics Genealogy Project.

## References

1. Mathematics Genealogy Project