Hairy Ball Update 2012

The Hairy Ball Theorem  (HBT) was first postulated (and then proved) by Luitzen Egbertus Jan Brouwer in 1912. An informal statement of the theorem is that :               “One cannot comb the hair on a coconut”. Temptations to classify the theorem as trivial should be strongly resisted – as it’s still finding relevance in many current research […]