The definition: A spherical neighborhood of a point is itself open-a-Euclidean Space in one dimension is a finite interval-Euclidean in two dimensions is a circle and Euclidean in 3-Dimensions and spheres- The blog looks the sphere in Euclidean-Geometry, non-Euclidean geometry, like sphere in a sphere or hyperbole for example, using differential geometry, topology and algebraic topology
Tuesday, December 27, 2022
Friday, November 18, 2022
Friday, October 28, 2022
Thursday, September 22, 2022
Tuesday, August 23, 2022
Saturday, July 9, 2022
Wednesday, June 22, 2022
Thursday, May 26, 2022
Thursday, April 28, 2022
Tuesday, March 22, 2022
Wednesday, February 16, 2022
Wednesday, January 19, 2022
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