Polarization of a vacuum as well dispersive and dissipative dielectric media with piece-wise smooth inhomogeneities is studied the goal to clarify question renormalizability diverging electromagnetic stress-energy tensor. First, stress tensor computed Lifshitz approach London forces in non-retarded limit, which after substraction leading free space ultraviolet divergencies still retains associa...

The scarf is a less used tool in the methodology of teaching folk dances. This object, however, had crucial role both Hungarian dance tradition and way life peasants. paper presents traditional appearances dances its usage’s symbolic semantic layers with special focus on wedding pair-choosing has privileged these playful pair-swapping games, one hand as realisation improvisation, other means cr...

Scarf (1960) proposed a market environment and a model of dynamic adjustment in .which the standard tatonnement price adjustment process orbits around, rather than converges to, the competitive equilibrium. Hirota ( 1981) characterized the price paths by the configuration of endowments. We explore the predictions of Scarf's model in a non­ tatonnement experimental double auction. We find that t...

We consider the Shapley-Scarf house allocation problem where monetary transfers are allowed. We characterize the class of mechanisms that are strategy-proof, ex post individually rational, ex post budget balanced, and “collusion-proof.” In these mechanisms, the price of each object is fixed in advance, and the objects are reallocated according to the (unique) core assignment of the Shapley-Scar...