A geometer or geometrician is a mathematician who specializes in geometry.
Some notable geometers and their main fields of work, chronologically listed, are:
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Arthur Cayley.jpg
Arthur Cayley Portrait
August Ferdinand Möbius.jpg
Depicted person: August Ferdinand Möbius
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Denis Auroux, Berkeley 2010
Benoit Mandelbrot mg 1804-d.jpg
Benoît Mandelbrot at the EPFL, on the 14h of March 2007
Blaise Pascal Versailles.JPG
Branko Grünbaum.jpg
Branko Grünbaum
Carl Friedrich Gauss.jpg
Portrait of the mathematician and philosopher Carl Friedrich Gauss
De Raum zeit Minkowski Bild (cropped).jpg
This is a detail of page 5 of the historical document:
Dedekind.jpeg
Photo de Richard Dedekind vers 1870
Ernst Witt.jpeg
Mathematician Ernst Witt in Nizza, 1970.
Europe a Prophecy copy K plate 01.jpg
Plate from Europe a Prophecy, copy K, in the collection of the Fitzwilliam Museum, Cambridge Univer...
Felix Klein.jpeg
Francesco Melzi - Portrait of Leonardo - WGA14795.jpg
Frans Hals - Portret van René Descartes.jpg
Georg Friedrich Bernhard Riemann.jpeg
An Image of en:Georg Friedrich Bernhard Riemann taken in 1863
George-hart-puzzle2.jpg
Source: http://www.georgehart.com/puzzles/george-hart-puzzle.jpg
GFDL license from author
From: "Geo...
God the Geometer.jpg
Science, and particularly geometry and astronomy/astrology, was linked directly to the divine for mo...
GodfreyKneller-IsaacNewton-1689.jpg
Portrait of Isaac Newton (1642-1727). This is a copy of a painting by Sir Godfrey Kneller (1689).
Gromov Mikhail Leonidovich.jpg
Mikhail Gromov at the IHES, 2007
Gérard Desargues.jpeg
Gérard Desargues, founder of projective geometry