List of geometers

A geometer is a mathematician whose area of study is geometry. Some important geometers and their main fields of work are:

Mathematicians

• Apastamba - Euclidean geometry, geometric algebra
• Apollonius of Perga - Euclidean geometry, conic sections
• Archimedes - Euclidean geometry
• Albert Victor Bäcklund
• Aleksandr Danilovich Aleksandrov
• Vladimir Arnold - algebraic geometry
• Henry Frederick Baker - algebraic geometry
• Baudhayana - Euclidean geometry, geometric algebra
• Károly Bezdek - Discrete geometry, sphere packing, Euclidean geometry, non-Euclidean geometry
• Luigi Bianchi - differential geometry
• János Bolyai - non-Euclidean geometry
• Pierre Ossian Bonnet - differential geometry
• Brahmagupta - Euclidean geometry, cyclic quadrilaterals
• Raoul Bricard - descriptive geometry
• Henri Brocard - Brocard points..
• Ludwig Burmester - theory of linkages
• Lazare Nicolas Marguerite Carnot - projective geometry
• Élie Cartan
• Arthur Cayley
• Giovanni Ceva - Euclidean geometry
• Shiing-Shen Chern - differential geometry
• Delfino Codazzi - differential geometry
• J. H. Conway - sphere packing, recreational geometry
• H. S. M. Coxeter - theory of polytopes, non-Euclidean geometry, projective geometry
• Germinal Dandelin - Dandelin spheres in conic sections
• Julius Wilhelm Richard Dedekind
• René Descartes - invented the methodology analytic geometry
• Joseph Diaz Gergonne - projective geometry; Gergonne point
• Girard Desargues - projective geometry; Desargues' theorem
• Dmitri Egorov - differential geometry
• Eratosthenes - Euclidean geometry
• Euclid - Elements, Euclidean geometry
• Leonhard Euler
• Karl Wilhelm Feuerbach - Euclidean geometry
• Jacob Fishbein
• Yevgraf Fyodorov
• Carl Friedrich Gauss - Theorema Egregium.
• Phillip Griffiths - algebraic geometry, differential geometry
• Mikhail Gromov
• Branko Grünbaum - discrete geometry.
• Richard Hamilton - differential geometry, Ricci flow, Poincaré conjecture
• Hero of Alexandria - Euclidean geometry
• Robin Hartshorne - All kinds of geometry, algebraic geometry
• William Vallance Douglas Hodge
• Hypatia of Alexandria - Euclidean geometry
• Jyesthadeva - Euclidean geometry, cyclic quadrilaterals
• Katyayana - Euclidean geometry
• Felix Klein
• Sofia Vasilyevna Kovalevskaya
• Philippe de La Hire - projective geometry
• Nikolai Ivanovich Lobachevsky - non-Euclidean geometry
• Manava - Euclidean geometry
• Yuri Manin - algebraic geometry and diophantine geometry
• Benoît Mandelbrot - fractal geometry
• Tobias Mayer
• John Milnor
• Hermann Minkowski - non-Euclidean geometry
• August Ferdinand Möbius - Euclidean geometry
• Gaspard Monge - descriptive geometry
• Christian Heinrich von Nagel - Euclidean geometry
• Max Noether - algebraic geometry
• Omar Khayyam - algebraic geometry, conic sections
• Blaise Pascal - projective geometry
• Daniel Pedoe
• Grigori Perelman
• John Playfair - Euclidean geometry
• Julius Plücker
• Aleksei Pogorelov - differential geometry
• Henri Poincaré
• Jean-Victor Poncelet - projective geometry
• Pappus of Alexandria - Euclidean geometry, projective geometry
• Siméon-Denis Poisson
• Pythagoras - Euclidean geometry
• Bernhard Riemann - non-Euclidean geometry
• Giovanni Gerolamo Saccheri - non-Euclidean geometry
• Jakob Steiner - a champion of synthetic geometry methodology, projective geometry, Euclidean geometry
• Thabit ibn Qurra - analytic geometry, non-Euclidean geometry, conic sections
• Thales of Miletus - Euclidean geometry
• William Thurston
• Oswald Veblen - projective geometry, differential geometry
• Abu'l-Wáfa - spherical geometry, non-Euclidean geometry
• Shing-Tung Yau
• Zeno of Elea - Euclidean geometry

Others

• Albert Einstein - non-Euclidean geometry
• Maurits Cornelis Escher (trained as architect; worked as artist; was not a mathematician but used geometrical ideas extensively)
• George W. Hart - sculptor
• Buckminster Fuller
• Leonardo da Vinci - Euclidean geometry
• Isaac Newton - 3rd-degree algebraic curve
• Johannes Kepler (used geometric ideas in astronomical work)