6,355 research outputs found
Monopoles without magnetic charges: Finite energy monopole-antimonopole configurations in CP1 model and restricted QCD
We propose a new type of regular monopole-like field configuration in quantum
chromodynamics (QCD) and CP^1 model. The monopole configuration can be treated
as a monopole-antimonopole pair without localized magnetic charges. An exact
numeric solution for a simple monopole-antimonopole solution has been obtained
in CP^1 model with an appropriate potential term. We suppose that similar
monopole solutions may exist in effective theories of QCD and in the
electroweak standard model.Comment: 8 pages, 8 figures, 1 table, final version accepted by Phys. Lett.
Models and techniques for hotel revenue management using a rolling horizon.
This paper studies decision rules for accepting reservations for stays in a hotel based on deterministic and stochastic mathematical programming techniques. Booking control strategies are constructed that include ideas for nesting, booking limits and bid prices. We allow for multiple day stays. Instead of optimizing a decision period consisting of a fixed set of target booking days, we simultaneously optimize the complete range of target booking dates that are open for booking at the moment of optimization. This yields a rolling horizon of overlapping decision periods, which will conveniently capture the effects of overlapping stays.Revenue management;Mathematical programming;Yield management
Models and Techniques for Hotel Revenue Management Using a Roling Horizon
AbstractThis paper studies decision rules for accepting reservations for stays in a hotel based on deterministic and stochastic mathematical programming techniques. Booking control strategies are constructed that include ideas for nesting, booking limits and bid prices. We allow for multiple day stays. Instead of optimizing a decision period consisting of a fixed set of target booking days, we simultaneously optimize the complete range of target booking dates that are open for booking at the moment of optimization. This yields a rolling horizon of overlapping decision periods, which will conveniently capture the effects of overlapping stays.mathematical programming;Revenue Management;yield management
Possible methods for the determination of the -parity of the -pentaquark in NN-collisions
We present two possibilities to determine the P-parity of the pentaquark
, in a model independent way, via the measurement of polarization
observables in , or , in
the near threshold region. Besides the measurement of the spin correlation
coefficient, , (in collisions of transversally polarized
nucleons), the coefficient of polarization transfer from the initial
proton to the final hyperon is also unambiguously
related to the parity.Comment: 7 pages, 1 figur
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