The Harsanyi set for cooperative TU-games

A cooperative game with transferable utilities, or simply a TU-game, describes a situation in which players can obtain certain payos by cooperation. A solution mapping for these games is a mapping which assigns to every game a set of payo distributions over the players in the game. Well-known solution mappings are the Core and the Weber set. In this paper we consider the mapping assigning to every game the Harsanyi set being the set of payo vectors obtained by all possible distributions of the Harsanyi dividends of a coalition amongst its members. We discuss the structure and properties of this mapping and show how the Harsanyi set is related to the Core and Weber set. We also characterize the Harsanyi mapping as the unique mapping satisfying a set of six axioms. Finally we discuss some properties of the Harsanyi Imputation set, being the individally rational subset of the Harsanyi set. Key words: TU-games, Core, Harsanyi Set, Weber Set, Shapley value, Selectope. JEL-code: C71.

Room temperature midinfrared electroluminescence from GaInAsSbP light emitting diodes. .

Room temperature electroluminescence in the midinfrared near 4 µm is reported from GaInAsSbP light emitting diodes grown on GaSb by liquid phase epitaxy. Comparison of the electro- and photoluminescence revealed that light is generated on the p side of the diode. The energy shift (24 meV) is consistent with band gap narrowing and recombination via band tail states due to the Zn doping (1×1018 cm−3) in the p layer of the structure. The temperature dependent behavior of the luminescence and the improved emission intensity was attributed to recombination from localized states arising from electrostatic potential fluctuations due to compositional inhomogeneities in these alloys

Premartensitic Transition in Ni2+xMn1-xGa Heusler Alloys

The temperature dependencies of the resistivity and magnetization of a series of Ni2+XMn1-XGa (X = 0 - 0.09) alloys were investigated. Along with the anomalies associated with ferromagnetic and martensitic transitions, well-defined anomalies were observed at the temperature of premartensitic transformation. The premartensitic phase existing in a temperature range 200 - 260 K in the stoichiometric Ni2MnGa is suppressed by the martensitic phase with increasing Ni content and vanishes in Ni2.09Mn0.91Ga composition

The concentration dependences of self-diffusion coefficients for solvent molecules in dilute solutions of polydimethylsiloxane

The concentration dependences of the self-diffusion coefficients of molecules of several hydrocarbon solvents in solutions of polydimethylsiloxane were analyzed. A "rational" concentration scale was suggested to compare the experimental concentration dependences of the self-diffusion coefficients of solvents, and suggestions concerning the factors determining this scale were made

The Cosmological Gene Project: cluster analysis of the atmospheric fluctuations on arcmin-scale imaging of the Cosmic Microwave Background

We discuss some aspects of the Cosmological Gene Project started at the Special Astrophysical Observatory (Russia) in 1999. The goal of the project is to measure the anisotropy and polarization of the Cosmic Microwave Background (CMB) and investigation of atmospheric fluctuations and foreground on arcmin-scales using the radio-telescope RATAN-600. We develop the cluster analysis of one-dimensional random fields for the application to the RATAN-600 scans. We analyze the specific properties of peak clusterisation in the RATAN-600 scans which to separate the primordial CMB signal from noise.Comment: Submitted to Astronomy & Astrophysic

Universal self-diffusion coefficients of macromolecules in polymer solutions and melts as a function of concentration and molecular mass

On the basis of an analysis of experimentally determined coefficients of self-diffusion D3 for polystyrene, polyethylene oxide (PEO), polydimethylsiloxane, and dextran in different solvents over a wide range of MM variation and concentrations σ, it is shown that there are universal relations between D3 and between D3 and M. © 1989