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math.GM2019
Generating Prime Numbers -- A Fast New Method
V. Vilfred Kamalappan
Bertrand's Postulate ensures existence of prime between and , an integer and the sieve of Eratosthenes, a very simple ancient algorithm, generates all prim…
math.GM2017
The Four Color Theorem -- A New Simple Proof by Induction
V. Vilfred Kamalappan
In 1976, Appel and Haken achieved a major break through by proving the four color theorem . Their proof is based on studying a large number of cases for which a computer-ass…