We investigate the production of a spectator scalar dark matter field that is directly coupled to inflaton during inflation and reheating. consider two specific inflationary potentials, namely Starobinsky T model inflation, which satisfy constraints on tilt, ${n}_{s}$, tensor-to-scalar ratio, $r$, measured by Planck satellite. Excitation light may result in large isocurvature perturbations, can...

We investigate the out-of-equilibrium production of scalar dark matter (DM) from inflaton condensate during inflation and reheating. assume that this couples only to via a direct quartic coupling is minimally coupled gravity. consider all possible regimes: purely gravitational, weak (perturbative), strong (non-perturbative). For each regime, we use different approaches determine phase space dis...

Assembly Line production is one of the widely used basic principles in production system. The problem of Assembly Line Balancing deals with the distribution of activities among the workstations so that there will be maximum utilization of human resources and facilities without disturbing the work sequence. Research works reported in the literature mainly deals with minimization of idle time i.e...

We introduce a new global constraint which combines together the lexicographic ordering constraint with some sum constraints. Lexicographic ordering constraints are frequently used to break symmetry, whilst sum constraints occur in many problems involving capacity or partitioning. Our results show that this global constraint is useful when there is a very large space to explore, such as when th...

We show that in theories with radiatively induced electro-weak symmetry breaking the EDMs obey a simple approximate scaling under the transformation m0 → λm0, m 1 2 → λm 1 2 in the large μ region. In the scaling region the knowledge of a single point in the MSSM parameter space where the cancellation in the EDMs occur allows one to generate a trajectory in the m0 −m 1 2 plane where the cancella...

The behaviour of firms on an oligopolistic market is usually modeled via the CournotNash equilibrium concept ([13, 18]). In fact, it is the classical Nash equilibrium, where each player (firm) maximizes its profit subject to production constraints. Assuming that one from the firms has a temporal advantage over the others, this firm can increase its profit by replacing a Cournot-Nash strategy by...