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 Aug 26 comment Hard Definite integral involving the Zeta function At first glance, I'd try to expand at least part of the integrand in a Taylor series. That might give you the $\zeta(5)$. Apr 16 comment Reference request: Chern classes in algebraic geometry Hey- this is kind of a silly debate. Let's call this whatever we like. It's always been called Chern-Weil around me but that's hardly a sacred cow. Apr 15 comment Reference request: Chern classes in algebraic geometry I think we're just using different titles for the same thing. Using elementary symmetric polynomials of eigenvalues for a matrix of 2forms to create characteristic classes is very topological but is also called the Chern-Weil approach. Are you thinking of Chern-Simmons maybe? Apr 15 answered Reference request: Chern classes in algebraic geometry Aug 17 comment Improper use of Stokes and Divergence Theorem. Find the problem As Tunococ said for an open surface the divergence theorem doesn't apply which gives you the problem you were looking for. In the case of a closed surface the argument is valid. Whatever F is if you integrate it over the empty set you're going to get zero. Aug 15 awarded Yearling Aug 15 revised Improper use of Stokes and Divergence Theorem. Find the problem added 9 characters in body Aug 15 answered Improper use of Stokes and Divergence Theorem. Find the problem Jan 25 awarded Commentator Jan 25 comment Going to the Movies! I like this problem. I'm guessing that small independent theaters don't have any sort of algorithm for organizing showtimes to maximize revenue. It seems likely that the google-plexes like AMC do though. If they don't I see some consulting work coming your way soon. Jan 25 awarded Critic Jan 19 comment Find a matrix $A$ such that $u$ is in $\operatorname{Null}(A)$ $u$ doesn't have to appear anywhere in the matrix $A$. All you need is some matrix $A$ for which $Au = 0$. The matrix $A$ you chose above doesn't do this. Jan 18 answered Differentiating a function with respect to a vector Sep 1 comment What is the connection between linear algebra and geometry? I can probably help you with that, but can you be more specific? Aug 31 answered What is the connection between linear algebra and geometry? Aug 31 comment Self-study: part 2 700-800 hours was a bit of a wild guess. I think most would agree with me that after that much time you're not going to reach "Fahrenheit 451" status with any of these books. Assuming each hour is undistracted quality time it's possible you could have mostly vanquished the first three and started to make headway on big Rudin. Aug 30 answered Self-study: part 2 May 23 comment Dimension of the manifold O(n) Haha! I was thinking the same thing! Up votes all around! May 23 comment Dimension of the manifold O(n) You're quite right. I think we posted at about the same time. I didn't read your comment until after my answer. May 23 answered Dimension of the manifold O(n)