Consider a two-level inventory system consisting of one supplier and one retailer. The retailer faces a Poisson demand with a known rate and applies base stock (one-for-one ordering) policy. That is, his inventory position is set to a pre-determined level, so the demand pattern is transferred exactly to the supplier. The supplier has an inventory system and a service unit with exponentially dis...

[1] Traditional terminology is that f → f |2kγ is the slash operator, although this name fails to suggest any meaning other than reference to the notation itself. In fact, obviously f(z)→ f(γz)(cz + d)−2k is a left translation operator, albeit complicated by the automorphy factor. That is, this is a right action of SL2(Z) on functions on H, while the group action of SL2(Z) on H is written on th...

Abstract According to one-level physicalism, reality is exhausted by fundamental physical entities and properties. This position sometimes defended on the basis of truthmaker view ontological commitment. Accordingly, physicalists can affirm higher-level truths without ontologically committing any properties or states affairs; affairs serve as truthmakers all that have truthmakers, a physicalist...