Chennai Mathematical Institute


10:30 am to 11:30 am, Lecture Hall 5
MSc. Thesis Defence
Sylvester-Gallai and subsequent strengthenings

Rajit Datta (MSc. Computer Science)
Chennai Mathematical Institute.


Given n points in the Euclidean plane. We draw a line through every pair of points. The Sylvester-Gallai theorem asserts that if all the points are not colinear then there must exist a line that passes through exactly 2 of the given n points (called an Ordinary line) We study proofs that show the existence of many Ordinary lines.

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