# Biography:Rom Varshamov

Rom Rubenovich Varshamov | |
---|---|

Born | 9 April 1927 Tbilisi, Georgian Socialist Soviet Republic |

Died | 24 August 1999 (aged 72) Moscow |

Nationality | Armenian |

Alma mater | Tbilisi State University |

Known for | Coding Theory |

Scientific career | |

Fields | Mathematician |

Institutions | Moscow, Yerevan |

Doctoral advisor | Arnold Walfisz |

**Rom Rubenovich Varshamov** (Russian Ром Рубенович Варшамов; Born April 9, 1927 in Tbilisi; Died August 24, 1999 in Moscow) was a Soviet Armenian mathematician who worked in Coding theory, especially on error-correcting codes and Number theory.

Varshamov studied in Tbilisi with Arnold Walfisz (where he was Georgian
students’ champion in the 100 metres), as well as in
Tomsk. After that, he was a researcher in Moscow at the Steklov Institute of Mathematics with Ivan Matveyevich Vinogradov, especially
on Number theory and Coding theory, and the Ministry of Radio Engineering
(working in Cryptography). In 1957 he proved the Gilbert-Varshamov bound for
linear codes (independently of Edgar Gilbert who proved the non-linear part). From 1968 he worked in Yerevan and was director of the Computer Centre (now Institute for Informatics and Automation Problems^{[1]}) of the Academy of Sciences of the Armenian SSR. He was author and co-author of more than 25 scientific articles^{[2]} and also a member of the Armenian National Academy of Sciences.^{[3]}

## Selected bibliography

- Varshamov, R. R.:
*Estimate of the number of signals in error correcting codes*(Russian), Dokl. Akad. Nauk SSSR**117**, 739–741, 1957

- (English Translation in I. F. Blake:
*Algebraic Coding Theory: History and Development*, Dowden, Hutchinson & Ross, 1973, pp 68–71)

- Varshamov, R. R.:
*A class of codes for symmetric channels and a problem from the additive theory of numbers*, IEEE Trans. Inf. Theory**19**, 92-95, 1973 - Varshamov, R. R.:
*On a method in the theory of reducibility of polynomials over a finite field*, Sov. Math., Dokl.**44**, No.1, 194-199, 1992; translation from Dokl. Akad. Nauk SSSR**319**, No.4, 787-791, 1991

## References

- ↑ Institute for Informatics and Automation Problems of NAS RA. "Web page". http://www.iiap.sci.am/.
- ↑ Zentralblatt MATH. "List of Rom Varshamov's publications". https://zbmath.org/authors/?q=ai:varshamov.r-r.
- ↑ Armenian National Academy of Sciences. "Page of Rom Varshamov". http://www.sci.am/members.php?mid=130&langid=1.

## External links

- Varshamov on mathnet.ru
- Article in Golos Armenii, April 10, 2007, electronic version No. 142 of 26.12.09

Original source: https://en.wikipedia.org/wiki/ Rom Varshamov.
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