Abstract
We study semilinear wave equations with Ginzburg–Landau-type nonlinearities, multiplied by a factor of , where is a small parameter. We prove that for suitable initial data, the solutions exhibit energy-concentration sets that evolve approximately via the equation for timelike Minkowski minimal surfaces, as long as the minimal surface remains smooth. This gives a proof of the predictions made (on the basis of formal asymptotics and other heuristic arguments) by cosmologists studying cosmic strings and domain walls, as well as by applied mathematicians.
Citation
Robert Jerrard. "Defects in semilinear wave equations and timelike minimal surfaces in Minkowski space." Anal. PDE 4 (2) 285 - 340, 2011. https://doi.org/10.2140/apde.2011.4.285
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