I am reading Road to Reality by Roger Penrose and I although I know about calculus, complex analysis, differential equations I do not know about manifolds, Riemann surfaces and so on. Which books can you recommend me in order to master the topics found on that book?
Preparing for reading Penrose's "Road to Reality"
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calculus
abstract-algebra
complex-analysis
manifolds
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0For learning about Riemann surfaces, I like Forster's book. As far as I recall, you shouldn't have to know about manifolds and differential geometry in order to start reading it. – 2011-11-18