The problem of software modeling having various models as sources and its transformation based on logical inference is considered. Source models are converted into graphs of RDF and then processed with knowledge based...
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We present detailed analysis of the T-even lepton angular distribution in the Drell-Yan process including γ/Z0 gauge boson exchange and using perturbative QCD based on the collinear factorization scheme at leading or...
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The Hamiltonian theory for the collective longitudinally polarized colorless gluon excitations (plasmons) and for collective quark-antiquark excitations with abnormal relation between chirality and helicity (plasminos...
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The Hamiltonian theory for the collective longitudinally polarized colorless gluon excitations (plasmons) and for collective quark-antiquark excitations with abnormal relation between chirality and helicity (plasminos) in a high-temperature quark-gluon plasma (QGP) is developed. For this purpose, Zakharov’s formalism for constructing the wave theory in nonlinear media with dispersion is used. A generalization of the Poisson superbracket involving both commuting and anticommuting variables to the case of a continuous medium is performed and the corresponding Hamilton equations are presented. The canonical transformations including simultaneously both bosonic and fermionic degrees of freedom of the collective excitations in QGP are discussed and a complete system of the canonicity conditions for these transformations is written out. An explicit form of the effective fourth-order Hamiltonians describing the elastic scattering of plasmino off plasmino and plasmino off plasmon is found and the Boltzmann type kinetic equations describing the processes of elastic scattering are obtained. A detailed comparison of the effective amplitudes defined within the (pseudo)classical Hamiltonian theory, with the corresponding matrix elements calculated early in the framework of high-temperature quantum chromodynamics in the so-called hard thermal loop approximation is performed. This enables one to obtain, in particular, an explicit form of the vertex and coefficient functions in the effective amplitudes and in the canonical transformations, correspondingly, and also to define the validity of a purely pseudoclassical approach in the Hamiltonian description of the dynamics of a quark-gluon plasma. The problem of determining the higher-order coefficient functions in the canonical transformations of fermionic and bosonic normal variables is considered. With the help of the coefficient functions obtained, the totally symmetric effective amplitudes of the elastic scattering of plasmino of
The paper addresses the relevant problem related to the development of scientific applications (applied software packages) to solve large-scale problems in heterogeneous distributed computing environments that can inc...
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The use of Semantic Web technologies (including ontologies) for intelligent systems and knowledge bases engineering is a widespread practice, it is true especially for tasks of conceptualization and formalization. How...
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The paper addresses the Network Roll-Out (NRO) problem aimed at scheduling the construction of mobile stations. In this case, NRO problem can be considered as a generalization of Resource-Constrained Project Schedulin...
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New results related to rule-based reasoning component of knowledge-based systems development platform are considered in the paper. Namely, the technique for the alternative way of rule creation based on the decision t...
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We consider a linear nonstationary system of ordinary differential equations with interval coefficients which is not solvable with respect to the derivative of the unknown vector-valued function for any matrix coeffic...
An approach to digital transformation of environmental monitoring of the Baikal natural territory is proposed, using digital platforms and a service-oriented paradigm, an infrastructure approach, declarative specifica...
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The development of intelligent systems and their software components (modules) continues to be a complex and time-consuming task. One of the ways to improve the efficiency of this process is to use the principles of g...
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