number theory - The Four Square Theorem and Integral Apollonian Circle Packings, is there any connection? - Mathematics Stack Exchange

I have been studying theta-functions and made an interesting observation which I have a question about QUESTION: Is there a more intuitive, in particular a mostly geometric way, to prove the four

geometry - Impossible to pack Circles without gaps - Mathematics Stack Exchange

An Episodic History of Mathematics

geometry - Intuitively, why aren't all points in a circle covered in an Apollonian gasket? - Mathematics Stack Exchange

Applications of Inversive Geometry

PDF) Regular polytopes, sphere packings and Apollonian sections

geometry - Frame challenge: Find the maximum $n$ such that circles of radius $1, rac12, rac13, , rac1n$ can be held immobile by a convex frame. - Mathematics Stack Exchange

The largest circles in an integral Apollonian circle packing.

PDF) Geometric Sequences Of Discs In The Apollonian Packing

PDF) Dismal Arithmetic

PDF) A polytopal generalization of Apollonian packings and Descartes' theorem

geometry - Intuitively, why aren't all points in a circle covered in an Apollonian gasket? - Mathematics Stack Exchange

fótMeij - International Mathematical Union

PDF) Regular polytopes, sphere packings and Apollonian sections

DMV-Jahrestagung 2015 in Hamburg