The analogy between combinatorial optimization and statistical mechanics has proven to be a fruitful object of study. Simulated annealing, a metaheuristic for combinatorial optimization problems, is based on this analogy. In this paper we use the statistical mechanics formalism based on the above mentioned analogy to analyze the asymptotic behavior of a special class of combinatorial optimizati...

This paper proposes TEA: a generic framework for decision making in web services, which integrates the environment (6 Ps) of decision making, the behaviors (6 Cs) of decision makers, and inner activities (another 6 Ps) of decision makers. This framework unifies what the decision makers can “eye” (the above-mentioned first 6Ps), should “think” (the above-mentioned another 6 Ps) and “act” (6 Cs),...

Influence of the fourth generation, if ever exists, on the experimentally measurable quantities such as invariant dilepton mass distribution, lepton forward–backward asymmetry, and the ratio ΓL/ΓT of the decay widths when K ∗ meson is longitudinally and transversally polarized, is studied. Using the experimental results on the branching ratios for the B → Xsγ and semileptonic B → Xclν̄ decays, t...

Recently the PVLAS collaboration reported the observation of a rotation of linearly polarized laser light induced by a transverse magnetic field – a signal being unexpected within standard QED. In this review, we emphasize two mechanisms which have been proposed to explain this result: production of a single light neutral spin-zero particle or pair production of light minicharged particles. We ...

C*-algebra endomorphisms arising from superselection structures with non-trivial centre define a ’rank’ and a ’first Chern class’. Crossed products by such endomorphisms involve the Cuntz-Pimsner algebra of a vector bundle having the above-mentioned rank and first Chern class, and can be used to construct a duality for abstract (nonsymmetric) tensor categories vs. group bundles acting on (nonsy...

In this paper, a dynamical multiple criteria model of integrated adaptive planning and scheduling for complex technical – organizational system (CTOS) is presented. Various types of CTOS are used nowadays, for example: virtual enterprises, supply chains, telecommunication systems, etc. Hereafter, we mostly interpret CTOS as the systems of the above-mentioned types. The above-mentioned CTOS pecu...

The thermal properties of light vector and scalar mesons are investigated in the framework of QCD sum rules. The phenomenological side of the correlation function can be calculated using either the quark-hadron duality approach or in terms of two-pion continuum contributions. In the quark-hadron duality approach, a free parameter (hadronic threshold) arises in the phenomenological part and it i...

The above-mentioned article has been accidentally published twice in the same volume. Publisher and Editors have therefore decided to remove one of articles on March 21, 2022.