? DoesP=NP. In just ?ve symbols Dick Karp -in 1972-captured one of the deepest and most important questions of all time. When he ?rst wrote his famous paper, I think it's fair to say he did not know the depth and importance of his question. Now over three decades later, we know P=NP is central to our understanding of compu- tion, it is a very hard problem, and its resolution will have potentially tremendous consequences. This book is a collection of some of the most popular posts from my blog- Godel ] Lost Letter andP=NP-which I started in early 2009. The main thrust of the blog, especially...

This book is a practical guide to headache medicine designed for both neurologists and general practitioners. Its expert author team introduces the principles of classification and diagnosis, and focuses in detail on the main classes of headache migraine, tension-type and trigeminal autonomic cephalgias, including cluster headache. The book's clinically focused practical approach covers unusual headache disorders, such as hemicrania continua and new daily persistent headache, and addresses the management of headache in women, children and the elderly.

? DoesP=NP. In just ?ve symbols Dick Karp -in 1972-captured one of the deepest and most important questions of all time. When he ?rst wrote his famous paper, I think it's fair to say he did not know the depth and importance of his question. Now over three decades later, we know P=NP is central to our understanding of compu- tion, it is a very hard problem, and its resolution will have potentially tremendous consequences. This book is a collection of some of the most popular posts from my blog-- Godel ] Lost Letter andP=NP--which I started in early 2009. The main thrust of the blog, especially...