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15
Math.TechQA.Club
2014-06-13 09:59:43
1.6k
Views
Projective variety minus hyperplane $=$ affine variety
Published on
13 Jun 2014 - 9:59
#algebraic-geometry
#projective-geometry
168
Views
Exponent of Projection (T^2=T)
Published on
14 Jun 2014 - 14:48
#exponentiation
#projective-geometry
771
Views
Showing there are 6 possible values for the cross ratio
Published on
15 Jun 2014 - 10:10
#projective-geometry
512
Views
How to define a "distance" from point to line in 3D projective space which is projectively invariant?
Published on
22 Mar 2026 - 8:38
#projective-geometry
#projective-space
#geometric-invariant
949
Views
Resolution of Singularities: Base Point
Published on
25 Mar 2026 - 7:40
#algebraic-geometry
#reference-request
#projective-geometry
#projective-space
#blowup
362
Views
A surprising locus of points
Published on
25 Mar 2026 - 20:58
#geometry
#euclidean-geometry
#conic-sections
#projective-geometry
#locus
436
Views
Name for a body that can be completely described using its silhouettes
Published on
27 Mar 2026 - 21:07
#geometry
#terminology
#projective-geometry
#tomography
812
Views
A question about three collinear points
Published on
21 Jun 2014 - 15:42
#projective-geometry
1.5k
Views
Blow-ups in Projective Space
Published on
25 Mar 2026 - 9:31
#algebraic-geometry
#reference-request
#projective-geometry
#projective-space
#blowup
101
Views
Enumerative projective geometry
Published on
27 Mar 2026 - 7:29
#algebraic-geometry
#projective-geometry
#projective-space
209
Views
Vertices and indices of a tesseract before and after projection
Published on
29 Jun 2014 - 1:41
#geometry
#projective-geometry
443
Views
A question from "Foundations of Projective Geometry" by Hartshorne.
Published on
02 Jul 2014 - 11:45
#projective-geometry
152
Views
Area of an ellipse proportional to integral of cross-ellipse distances?
Published on
03 Jul 2014 - 19:06
#circles
#conic-sections
#projective-geometry
#area
284
Views
A doubt in the proof of Desargues' Theorem.
Published on
04 Jul 2014 - 4:50
#projective-geometry
2.5k
Views
The cross-ratio of four points is a real number exactly when the four points lie on a line or a circle
Published on
27 Mar 2026 - 3:44
#complex-analysis
#complex-numbers
#projective-geometry
#projective-space
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