The Four Colour Theorem
- đ¤ Speaker: Professor Imre Leader
- đ Date & Time: Tuesday 03 March 2009, 17:00 - 18:00
- đ Venue: Centre for Mathematical Sciences, Clarkson Road, Cambridge
Abstract
How many colours do we need for a map? In other words, if we are colouring in the countries on a map, and we want neighbouring countries to have different colours, how many colours are enough? Map-makers had suspected for a long time that any map could be coloured using just four colours, but was this right?
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Professor Imre Leader
Tuesday 03 March 2009, 17:00-18:00