Mathematician:Henry John Stephen Smith

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Irish mathematician remembered for his work in elementary divisors, quadratic forms, and the Smith-Minkowski-Siegel Mass Formula in number theory.

Devised the Smith Normal Form of a matrix.

Also worked on elliptic functions.


Irish (then part of Great Britain).


  • Born: 2 November 1826 in Dublin, Ireland
  • Died: 9 February 1883 in Oxford, England

Theorems and Definitions

Definitions of concepts named for Henry John Stephen Smith can be found here.


Notable Quotes

Arithmetic is one of the oldest branches, perhaps the very oldest branch, of human knowledge; and yet some of its most abstruse secrets lie close to its tritest truths.
-- Quoted in 1937: Eric Temple Bell: Men of Mathematics: They Say: What Say They? : Let Them Say

Also known as

The Stephen is sometimes omitted when reporting his name: Henry John Smith.