Description:
Mathematical discussions and pursuits.
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Eigenvalues of Nonnegative Matrices (Frobenius Theorem)
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Hello, let A be a real nxn nonnegative matrix (that is, all the entries of A are non negative numbers) with Frobenius eigenvalue f>0. Denote with D(k_1,...,k_n) the diagonal matrix whose i-th diagonal entry is k_i>=0. The problem is the following: can you find all the n-tuples (k_1,...,k_n) such that the Frobenius eigenvalue of... more »
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Mathematics of Global warming
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[link] Besides all the hoopla with the global warming extremists I saw the wiki page above describing the meteorological example. Can one consider this a mathematical proof that hurricanes must exist? That is, because there is at least one point of "no wind" at any given time it is... more »
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@@@ Test Banks and solution manuals $$$$$
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Comprehensive Test Banks and solution manuals Email me at allsolutionmanuals11[at]gmail. com if you need to buy any test bank or solution manual listed below. All emails will be answered quickly. Or visit [link] for a latest list of resources. 2009 Corporate, Partnership, Estate and Gift Taxation - James Pratt... more »
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Find all the aa...aabb...bb square numbers
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We should find all the perfect squares with 2n digits in which the first n and the last n digits are the same. (For example: 16, 25, 36, 49, 64, 81 and also 88^2=7744 are "good" numbers.)
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P = NP latest from ArXiv
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source: [link] First, interesting algorithms: F (string input) // F is a restricted type X program, for Q’ (f) is supposed to run in time P (n) { concurrent_ifs // only one of the returns can close the concurrent instructions block below, where the two ifs run concurrently... more »
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