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math.PR2025
Partially exchangeable Markov chains and characterisation of multitype Lambda-coalescents
Adrián González Casanova, Noemi Kurt, Imanol Nuñez Morales +1
In this paper, we study consistent and partially exchangeable sequences of Markov chains on a finite state space. We provide a characterisation of the admissible transition rates v…
math.OC2025
An Inventory System with Two Supply Modes and Lévy Demand
José Luis Pérez, Kazutoshi Yamazaki, Qingyuan Zhang
This study considers a continuous-review inventory model for a single item with two replenishment modes. Replenishments may occur continuously at any time with a higher unit cost,…