2021
DOI: 10.1214/21-aihp1172
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Last passage percolation in an exponential environment with discontinuous rates

Federico Ciech,
Nicos Georgiou

Abstract: We prove a strong law of large numbers for directed last passage times in an independent but inhomogeneous exponential environment. Rates for the exponential random variables are obtained from a discretisation of a speed function that may be discontinuous on a locally finite set of discontinuity curves. The limiting shape is cast as a variational formula that maximises a certain functional over a set of weakly increasing curves.Résumé. On montre une loi des grands nombres pour les temps de dernier passage diri… Show more

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