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By Vladimir G. Boltjansky, Israel Gohberg, B. Bollobás, A. Harris. They show how closely related these problems are to each other. At the end of the book the authors have collected together a set of unsolved and partially solved problems that a sixth-form student should be able to understand and even attempt to solve.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.