Questions tagged [projective-geometry]
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What motivated the development of the theory of perspective during the Renaissance? [closed]
It is said that the theory of perspective in art was greatly developed during the Renaissance because of the search for reality at this time: more realistic representations.
My question is what ...
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Who wrote "projective geometry" for the first time?
I guess Desargues did not use that term. Anyone could help me know where did it appear for the first time? Thanks
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What theorem of Sophus Lie on the number of geometries is H. Poincaré referring to?
In this quotation from Henri Poincaré's essay "Non-Euclidean Geometry" published in Nature in 1892 (No. 1165, Vol 45, p. 406), he refers to a theorem of Sophus Lie. Does anyone know a source for this ...
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What was the old system of using right circular cones to solve problems about circles in the plane?
[I asked this originally at the Math Stack Exchange, and they suggested I also ask about it here.]
I heard about this from a college professor but haven't ever been able to find any other mention of ...
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Did Einstein get inspired by projective geometry?
I read somewhere that projective geometry was an inspiration to Einstein to build the theory of relativity. However, the keyword "projective geometry" isn't mentioned in history of general relativity ...
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Where was the word "pencil" first used in (projective) geometry and what is the reason behind this curious name?
The title is pretty self-explanatory: A pencil in projective (or algebraic) geometry is the family of all lines through a point. The above-linked website tells me that Cremona, on page x of Elements ...