User val - MathOverflow most recent 30 from http://mathoverflow.net 2013-05-23T04:42:03Z http://mathoverflow.net/feeds/user/13913 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/91235/question-on-sparse-random-graphs Question on Sparse Random Graphs Val 2012-03-15T00:38:53Z 2012-04-03T03:03:21Z <p>I saw stated in a paper the following result but without a reference or a proof. </p> <p>Let $G$ be an Erdos-Renyi random graph with $n$ nodes and probability of connection $c/n$ with $c>1$. Let $H$ be its giant component (which exists and has $\alpha(c)n$ nodes almost surely where $\alpha$ is a well known function). Then the graph $H$ has paths with only one connection to the rest of the graph of length $O(\log n)$ asymptotically almost surely.</p> <p>Can somebody show me why is this true or give me a reference? Thanks a lot!</p> http://mathoverflow.net/questions/60812/asymptotic-distribution-of-primes/60817#60817 Answer by Val for Asymptotic Distribution of Primes Val 2011-04-06T13:27:27Z 2011-04-06T13:27:27Z <p>I don't have the reputation to comment but what about the second question? Are there more precise results?</p> http://mathoverflow.net/questions/59605/reference-in-riemann-surfaces Reference in Riemann Surfaces Val 2011-03-25T20:40:10Z 2011-03-28T03:36:23Z <p>Can any one recommend me a good introductory book in Riemann Surface? </p> <p>Thanks!</p> http://mathoverflow.net/questions/73219/hyperbolicity-on-riemann-surfaces/73245#73245 Comment by Val Val 2011-08-20T00:56:41Z 2011-08-20T00:56:41Z This might be a stupid question but how do you prove that a simply connected hyperbolic surface (i.e. conformally equivalent to the unit disk) is Gromov's hyperbolic?