# Tamal Dey

> Indian mathematician and computer scientist (born 1964)

**Wikidata**: [Q59660341](https://www.wikidata.org/wiki/Q59660341)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Tamal_Dey)  
**Source**: https://4ort.xyz/entity/tamal-dey

## Summary
Tamal Dey (also known as Tamal Krishna Dey) is an Indian mathematician and computer scientist (born 1964). He is known for contributions to computational geometry and computational topology and was named an ACM Fellow in 2018 for these contributions. He is affiliated professionally with Purdue University.

## Biography
- Born: 1964
- Nationality: India
- Education: Jadavpur University; Indian Institute of Science, Bengaluru; Purdue University
- Known for: Contributions to computational geometry and computational topology
- Employer(s): Purdue University
- Field(s): Mathematics; computer science

## Contributions
The provided sources identify Tamal Dey as a mathematician and computer scientist whose recognized contributions are in computational geometry and computational topology. His work in these areas was formally acknowledged when he was named an ACM Fellow (Association for Computing Machinery) in 2018, with the citation “for contributions to computational geometry and computational topology” (dated 2018-12-05).  

The sources also document his academic lineage and mentorship connections within computer science and mathematics. His doctoral advisors are listed as Chandrajit Bajaj and Herbert Edelsbrunner. He is also recorded as having doctoral students including Alfred Rossi, Pawas Ranjan, and Fengtao Fan.  

Beyond these high-level contribution statements and academic relationships, the supplied material does not provide titles of specific papers, books, software, patents, or projects, nor does it provide dates or venues for particular publications. As a result, this entry limits itself to the concrete, sourced outcomes available: his recognized contribution areas (computational geometry/topology), his ACM Fellow distinction (2018), and his documented advisor–student relationships.

## FAQs
### Q: Who is Tamal Dey?
A: Tamal Dey is an Indian mathematician and computer scientist born in 1964. He is known for contributions to computational geometry and computational topology and is an ACM Fellow (2018).

### Q: What is Tamal Dey known for?
A: He is known for contributions to computational geometry and computational topology. These contributions were cited in his election as an ACM Fellow in 2018.

### Q: Where did Tamal Dey study?
A: He studied at Jadavpur University, the Indian Institute of Science, Bengaluru, and Purdue University.

### Q: Who advised Tamal Dey’s doctorate?
A: His doctoral advisors are listed as Chandrajit Bajaj and Herbert Edelsbrunner.

### Q: Who are Tamal Dey’s doctoral students?
A: The sources list Alfred Rossi, Pawas Ranjan, and Fengtao Fan as his doctoral students.

## Why They Matter
Tamal Dey matters in mathematics and computer science because his work is explicitly recognized as contributing to two foundational areas that shape modern algorithmic and geometric thinking: computational geometry and computational topology. These fields underpin how researchers and practitioners reason about shape, structure, and spatial relationships in computational settings, and they influence a wide range of downstream research in theoretical and applied computing.  

His election as an ACM Fellow in 2018 provides an external, field-level validation that his contributions had notable impact within the computing research community. The ACM Fellow designation is tied in the sources to a specific contribution statement—computational geometry and computational topology—making it the clearest documented indicator of what changed because of his work: it advanced these areas enough to be recognized by a major professional society.  

He also matters through academic mentorship. The sources document both his doctoral advisors (Chandrajit Bajaj and Herbert Edelsbrunner) and several of his doctoral students (Alfred Rossi, Pawas Ranjan, Fengtao Fan), placing him within a research lineage that transmits methods and ideas across generations of scholars.

## Notable For
- Named an **ACM Fellow (2018-12-05)** “for contributions to computational geometry and computational topology.”
- Identified as an **Indian mathematician and computer scientist** (born 1964).
- **Employer:** Purdue University.
- **Doctoral advisors:** Chandrajit Bajaj; Herbert Edelsbrunner.
- **Doctoral students (listed):** Alfred Rossi; Pawas Ranjan; Fengtao Fan.

## Body
### Identity and Names
- Name: Tamal Dey
- Alias: Tamal Krishna Dey
- Description (source): Indian mathematician and computer scientist (born 1964)
- Sex or gender: male

### Fields and Research Areas
- Occupations:
  - Computer scientist
  - Mathematician
- Recognized contribution areas (as cited by ACM):
  - Computational geometry
  - Computational topology

### Education
- Educated at:
  - Jadavpur University
  - Indian Institute of Science, Bengaluru
  - Purdue University

### Professional Affiliation
- Employer:
  - Purdue University

### Honors and Memberships
- Association for Computing Machinery (ACM):
  - Member status: ACM Fellow
  - Start time / date cited: 2018-12-05
  - Citation: “For contributions to computational geometry and computational topology”
- Award received:
  - ACM Fellow (point in time: 2018; date cited: 2018-12-05)
  - IEEE Fellow (no date or citation details provided in the supplied material)

### Academic Lineage (Advisors and Students)
- Doctoral advisors:
  - Chandrajit Bajaj
  - Herbert Edelsbrunner
- Doctoral students (listed):
  - Alfred Rossi
  - Pawas Ranjan
  - Fengtao Fan

### Identifiers and Authority Control (Selected)
- ISNI: 0000000114618686
- VIAF: 76627310
- GND: 138060134
- IdRef: 119182327
- Library of Congress authority ID: n2006041302
- BnF ID: 15541135q
- zbMATH author ID: dey.tamal-krishna
- MathSciNet author ID: 57365
- Mathematics Genealogy Project ID: 81852
- DBLP author ID: d/TamalKDey
- Google Scholar author ID: k7VhUnAAAAAJ

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## References

1. BnF authorities
2. [Source](https://www.acm.org/media-center/2018/december/fellows-2018)
3. Mathematics Genealogy Project
4. Czech National Authority Database
5. NUKAT
6. Virtual International Authority File
7. IdRef
8. National Library of Israel Names and Subjects Authority File