Correlated equilibria are sometimes more efficient than the Nash equilibria of a game without signals. We investigate whether the availability of quantum signals in the context of a classical strategic game may allow the players to achieve even better efficiency than in any correlated equilibrium with classical signals, and find the answer to be positive.

researches support that color is like a force that affects on nervous system and this effect is not less than music and sometimes it may be more than that. poets throughout history have shown great interest in color, but this interest varies from time to time. as at pre-islamic era, color was used in its original meaning in most situations and this view has slowly gone toward using color in sym...

Let G=GL(V) for an N-dimensional vector space V over algebraically closed field k, and G? the fixed point subgroup of G under involution ? on G. In case where G?=O(V), generalized Springer correspondence unipotent variety symmetric G/G? was described in [SY], assuming that ch k?2. The definition given there, arising from ?, make sense even if k=2. this paper, we discuss those spaces with charac...

BACKGROUND Portal hypertension has a broad differential diagnosis. POEMS syndrome is an uncommon cause of it. POEMS syndrome is a rare disease involving multiple organs. In differential diagnosis of portal hypertension, POEMS syndrome should be considered especially when other symptoms such as numbness, organomegaly, endocrine alteration and skin changes also present, as it is highlighted by ou...

poetry and myth are intertwined and most of the poets often live in the mythological spaces for moments. myths help poetry being prosperous and having multi-layered meaning through its symbolic expression. with the development and progress of science, the influence of myths in human societies decreased; however they have not generally lost their impact, especially in literature. so we are to fi...