The transition between the gap probabilities from the Pearcey to the Airy process; a Riemann-Hilbert approach - Mathematical PhysicsReportar como inadecuado




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Abstract: We consider the gap probability for the Pearcey and Airy processes; we set upa Riemann-Hilbert approach different from the standard one whereby theasymptotic analysis for large gap-large time of the Pearcey process is shown tofactorize into two independent Airy processes using the Deift-Zhou steepestdescent analysis. Additionally we relate the theory of Fredholm determinants ofintegrable kernels and the theory of isomonodromic tau function. Using theRiemann-Hilbert problem mentioned above we construct a suitable Lax pairformalism for the Pearcey gap probability and re-derive the two nonlinear PDEsrecently found and additionally find a third one not reducible to those.



Autor: M. Bertola, M. Cafasso

Fuente: https://arxiv.org/







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