News tagged with mathematical theorem
Mathematics: Mapping a fixed point
(PhysOrg.com) -- For fifty years, mathematicians have grappled with a so-called “fixed point” theorem. An EPFL-based team has now found an elegant, one-page solution that opens up new perspectives ...
Nov 23, 2011 |
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Centuries-old math formula helps map galaxy clusters
(PhysOrg.com) -- Across the universe, galaxies band together in clusters so huge it can take 10 million years for light to travel from one end of a galaxy cluster to the other. Probing these metropolises is ...
Jun 09, 2011 |
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New theory shows one-way transmission materials should be possible for sound and light waves
(PhysOrg.com) -- Physicist Stefano Lepri of the Italian National Research Council and his partner Giulio Casati of the University of Insubria, have published a paper in Physical Review Letters, where they demonstrate throug ...
May 03, 2011 |
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Rough calculations: New book lays out practical tools for educated guessing
(PhysOrg.com) -- Time for some quick arithmetic: Is 3600 x 4.4 x 104 x 32 larger or smaller than 3 x 109?
Mar 29, 2010 |
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Mathematical models key to tracking gossip, terrorists
(PhysOrg.com) -- Thanks to the Internet and online social networks (OSNs) news and gossip now spread literally like wildfire -- uncontrollably and seemingly without any order. But according to one Ryerson ...
Dec 09, 2009 |
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New Book Uses Physical Reasoning to Solve Mathematical Problems
Mark Levi, professor of mathematics at Penn State, has authored a book titled "The Mathematical Mechanic: Using Physical Reasoning to Solve Problems," soon to be published by Princeton University Press. The book, which is ...
Apr 22, 2009 |
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Physicists see the cosmos in a coffee cup
(PhysOrg.com) -- A Duke University professor and his graduate student have discovered a universal principle that unites the curious interplay of light and shadow on the surface of your morning coffee with ...
Apr 14, 2009 |
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