Imre Bárány; Tensors, colours, octahedra

Tensors, colours, octahedra
Imre Bárány
Alfréd Rényi Mathematical Institute
Hungarian Academy of Sciences
University College London
2013/04/26 Fri 4PM-5PM – ROOM 3433
Several classical results in convexity, like the theorems of Caratheodory, Helly, and Tverberg, have colourful versions. In this talk I plan to explain how two methods, the octahedral construction and Sarkaria’s tensor trick, can be used to prove further extensions and generalizations of such colourful theorems.


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