# Yanjun Zhang

> Ph.D. University of California, Berkeley 1989

**Wikidata**: [Q102305721](https://www.wikidata.org/wiki/Q102305721)  
**Source**: https://4ort.xyz/entity/yanjun-zhang

## Summary
Yanjun Zhang is a computer scientist who earned a Ph.D. from the University of California, Berkeley in 1989. Their doctoral work was supervised by theoretical computer scientist Richard M. Karp; Zhang is recorded in author and academic genealogy databases (MR Author ID 271250; Mathematics Genealogy Project ID 106248).

## Biography
- Nationality: [not available]
- Education: Ph.D., University of California, Berkeley (1989)
- Known for: Earning a Ph.D. in computer science from UC Berkeley under advisor Richard M. Karp
- Employer(s): [not available]
- Field(s): Computer science
- Doctoral advisor: Richard M. Karp

## Contributions
The available source material documents Yanjun Zhang's principal verifiable contribution as the completion of a Ph.D. at the University of California, Berkeley in 1989 under the supervision of Richard M. Karp. That degree indicates the completion of a doctoral dissertation and the generation of original research as required by Berkeley’s Ph.D. program. Zhang is indexed in bibliographic and academic records: the Mathematical Reviews author identifier (MR Author ID 271250) and the Mathematics Genealogy Project (ID 106248). These identifiers denote an authorship record in mathematical and theoretical computer science literature and a traceable place in an academic lineage. Beyond the fact of the Ph.D. and the supervisory relationship to Richard M. Karp, the provided source material does not list dissertation title, publication titles, patents, founded companies, open-source projects, or standards authored by Zhang. Consequently, concrete items such as specific papers, books, or products cannot be stated from the supplied material. The verified, concrete outcomes in the record are the doctoral degree (1989), documented advisor relationship, and registration in the cited academic databases.

## FAQs
### Q: Who is Yanjun Zhang?
A: Yanjun Zhang is a computer scientist who received a Ph.D. from the University of California, Berkeley in 1989.

### Q: Where and when did Yanjun Zhang complete their doctorate?
A: Zhang completed a Ph.D. at the University of California, Berkeley in 1989.

### Q: Who supervised Yanjun Zhang’s doctoral work?
A: Zhang’s doctoral advisor was Richard M. Karp.

### Q: Are Zhang’s publications listed in standard databases?
A: Zhang is listed with MR Author ID 271250 and Mathematics Genealogy Project ID 106248, indicating entries in those databases. Specific publication titles are not provided in the source material.

## Why They Matter
The verifiable significance of Yanjun Zhang, based on the available sources, rests on their completion of a doctoral degree in computer science at a prominent research institution (UC Berkeley) under a leading theoretical computer scientist, Richard M. Karp. Earning a Ph.D. at Berkeley in 1989 situates Zhang within the academic and research community of theoretical computer science at a time when foundations in algorithms and computational theory were being actively developed. The advisor relationship links Zhang to a well-documented academic lineage and to networks of students and researchers influenced by Karp’s work. The presence of Zhang’s MR Author ID and Mathematics Genealogy Project ID provides persistent, discoverable records tying Zhang to the scholarly corpus and to the history of the discipline. Without these confirmed records, Zhang’s verified footprint in public academic registries would be absent. The available facts therefore establish Zhang as a trained and recorded contributor to computer science scholarship; however, the source material does not supply the detailed publications or projects that would allow a fuller assessment of specific technical influence or lasting research impact.

## Notable For
- Earning a Ph.D. in computer science from the University of California, Berkeley (1989).
- Doctoral advisor: Richard M. Karp, a prominent theoretical computer scientist.
- Listed in Mathematical Reviews as an author (MR Author ID 271250).
- Recorded in the Mathematics Genealogy Project (ID 106248).
- Identified occupation: computer scientist.

## Body

### Academic credentials
- Ph.D., University of California, Berkeley — awarded 1989.
- Doctoral advisor recorded as Richard M. Karp.

### Academic lineage and supervision
- Supervised by Richard M. Karp. 
- Connection to Karp places Zhang within a documented lineage in theoretical computer science.

### Bibliographic and registry identifiers
- MR Author ID: 271250. This indicates an authorship record in the Mathematical Reviews/MathSciNet system.
- Mathematics Genealogy Project ID: 106248. This records the doctoral degree and advisor relationship.

### Known outputs (as documented)
- The source materials confirm the completion of a doctoral dissertation in 1989 as Zhang’s primary documented scholarly output.
- No dissertation title, publication list, patent numbers, company affiliations, or project names are provided in the supplied material.

### Limitations of the available record
- No birth date or nationality is provided in the source material.
- No employer, institutional appointments, or specific publications are included in the provided sources.
- All statements above are restricted to facts explicitly present in the supplied material.

## References

1. Mathematics Genealogy Project