The problem is simply stated, and involves the colouring of maps. Can every map be coloured with at most four colours so that neighbouring countries are coloured differently?
First posed 150 years ago, it took more than a century of colouring maps and developing the necessary theoretical machinery before the result was established with certainty. Even then, difficult philosophical questions remained.
With elegance and clarity, Robin Wilson explains the problem and the proof.
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Descrizione libro Hardcover. Condizione: new. New. Fast Shipping and good customer service. Codice articolo Holz_New_0713996706
Descrizione libro Hardcover. Condizione: new. New Copy. Customer Service Guaranteed. Codice articolo think0713996706