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Dear Wikipedians:
I am learning curvature from the book Riemannian Geometry, a Beginners Guide by Dr. F. Morgan. However, I am pretty sure that a page is missing. I think the missing page is page 5. The reason I believe this is because the content at the end of page 4 (I believe), which is the first page of chapter 2 (with a big number 2 and the chapter title at the beginning of the page), transitions too jarringly into the contents found at the start of page 6, below Figure 2.1. However, there is no way that I can verify it as I do not possess the original library copy of the book.
So I am wondering if one of you can verify for me that that is indeed the original sequence progression of pages in the original library version of the book?
Thanks,
174.88.35.195 (talk) 02:09, 12 November 2011 (UTC)
I was reading about the singular value decomposition of a matrix and it said that given an orthonormal set of vectors {u1, ... ,ur} you had to extend it to an orthonormal basis of R^n. What does this mean and how do you do it? Widener (talk) 06:20, 12 November 2011 (UTC)
I'm looking for help with finding a list of the higher dimension analog of the Johnson solids, which are the Solids where all faces are regular polygons but are not vertex transitive. ("The corners aren't all the same"). There is sort of a split in higher dimensions that you don't have in 3 dimensions as to whether all of the polytopes that make up the higher dimensional equivalents have to be regular as well. As an example in 4 dimensions, the hyper pyramids with the Octahedron and Icosahedron bases are entirely made of regular polyhedra (the base plus tetrahedra), but the hyper pyramids with Cube and Dodecahedron bases are not made up entirely of regular polyhedra (because they have square and pentagonal pyramids) but those solids are made up of regular polygons. Any ideas where to look?Naraht (talk) 13:33, 12 November 2011 (UTC)
Somebody has edited Mimesis (mathematics) so that where it once said "The term geometric integration denotes a very similar philosophy", it now says "The term geometric integration denotes the same philosophy". Is this vandalism? Since I generally ignore mathematics and I haven't a scrap of the background knowledge the article expects, I can't tell. Card Zero (talk) 15:15, 12 November 2011 (UTC)