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Monthly Archives: January 2013
OrderTheoretic Representation Theory
Group representation theory lies at the heart of modern physics as the mathematical expression of symmetry, remaining perhaps the most promising vehicle for initial progress beyond relativity and the standard model. Covariance in relativity is expressed locally in terms of … Continue reading
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Causal Atomic Resolution
If spacetime degenerates into a nonmanifold structure near the Planckscale, the number of fundamental elements involved in even the smallestscale interactions currently observable might be very large: possibly on the order of Avogadro’s number. This statement applies not only to … Continue reading
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Causal Theory in Power Space
George Ellis and a few other physicists have recently introduced the idea of topdown causation in fundamental physics. In the context of classical spacetime, the hypothesis of topdown causation is that causal relationships among subsets of spacetime are not completely … Continue reading
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Shape/Causal Duality?
Shape dynamics, invented by Julian Barbour, is a theory of spacetime that applies an action principle, called Jacobi’s principle, and a procedure called best matching, to a configuration space of conformal 3manifolds, called shape space, to recover the Hamiltonian formulation … Continue reading
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Recent Ideas
The following are some new ideas about physics. I have most of these ideas partially written up, but I am so busy with other work at present that it may be some time before I can put them into a … Continue reading
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