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The $W,Z$ scale functions kit for first passage problems of spectrally negative Levy processes, and applications to control problems
Florin Avram, Danijel Grahovac and Ceren Vardar-Acar
ESAIM: PS, Forthcoming article
Received: 01 November 2017 / Revised: 13 May 2019 / Accepted: 06 November 2019