W study cross-selling operations in call centers. The following questions are addressed: How many customer-service representatives are required (staffing), and when should cross-selling opportunities be exercised (control) in a way that will maximize the expected profit of the center while maintaining a prespecified service level target? We tackle these questions by characterizing control and s...

We derive a product rule for gauge invariant Weyl symbols which provides a generalization of the well-known Moyal formula to the case of non-vanishing electromagnetic fields. Applying our result to the guiding center problem we expand the guiding center Hamiltonian into an asymptotic power series with respect to both Planck's constant ¯ h and an adiabaticity parameter already present in the cla...

In this paper we discuss on the fixed points of asymptotic contractions and Boyd-Wong type contractions in uniform spaces equipped with an E-distance. A new version ofKirk's fixed point theorem is given for asymptotic contractions and Boyd-Wong type contractions is investigated in uniform spaces.

We consider quasilinear parabolic equations on RN satisfying certain symmetry conditions. We prove that bounded positive solutions decaying to zero at spatial infinity are asymptotically radially symmetric about a center. The asymptotic center of symmetry is not fixed a priori (and depends on the solution) but it is independent of time. We also prove a similar theorem on reflectional symmetry.

We investigate the asymptotic value for a class of non-atomic games, which includes all those arising from markets with a continuum of traders. The main result is the following: the asymptotic value, if it exists, is the center of symmetry of the core. This implies that the value is a member of the core, and it gives a necessary condition for its existence. The sufficiency of this condition for...

bone marrow specimens from leukemic patients were studied in a 5 year period beginning in 1982 in children's medical center of teheran,a teaching and referral center for pediatric medicine. the slides were stained by giemsa-wright stains, read by at least two persons experienced in bone marrow pathology and classified according to f.a.b. recommendations. peroxidase or sudan black-b and p.a...

Bone marrow specimens from leukemic patients were studied in a 5 year period beginning in 1982 in Children's Medical Center of Teheran,a teaching and referral center for pediatric medicine. The slides were stained by Giemsa-Wright stains, read by at least two persons experienced in bone marrow pathology and classified according to F.A.B. recommendations. Peroxidase or Sudan black-B and P.A...

By analytical methods we study the large time properties of the solution of a simple one-dimensional model of stochastic Stokes’ drift. Semi-explicit formulae allow us to characterize the behaviour of the solutions and compute global quantities such as the asymptotic speed of the center of mass or the effective diffusion coefficient. Using an equivalent tilted ratchet model, we observe that the...

in a detection network, the final decision is made by fusing the decisions from local detectors. the objective of that decision is to minimize the final error probability. to implement and optimal fusion rule, the performance of each detector, i.e. its probability of false alarm and its probability of missed detection as well as the a priori probabilities of the hypotheses, must be known. howev...

in this paper we discuss on the fixed points of asymptotic contractions and boyd-wong type contractions in uniform spaces equipped with an e-distance. a new version ofkirk's fixed point theorem is given for asymptotic contractions and boyd-wong type contractions is investigated in uniform spaces.