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
Friday, December 27, 2019
Saturday, November 9, 2019
Saturday, October 5, 2019
Wednesday, September 11, 2019
Friday, August 16, 2019
Sunday, July 7, 2019
Saturday, June 22, 2019
Saturday, May 4, 2019
Tuesday, April 23, 2019
Saturday, March 23, 2019
Thursday, February 28, 2019
Saturday, January 19, 2019
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