In many situations, in all branches of physics, one encounters the power-like behavior of some variables, which is best described by a Tsallis distribution characterized by a nonextensivity parameter q and scale parameter T . However, there exist experimental results that can be described only by a Tsallis distributions, which are additionally decorated by some log-periodic oscillating factor. ...

Locally optimum detectors for weak random signals are derived for a generalized observation model incorporating signal-dependent and multiplicative noise. It is shown that the locally optimum random-signal detectors in the generalized observation model are interesting generalizations of those that would be obtained in the purely additive noisy signal model. Examples of explicit results for the ...

We introduce two drift-diagonally-implicit and derivative-free integrators for stiff systems of Itô stochastic differential equations with general non-commutative noise which have weak order 2 and deterministic order 2, 3, respectively. The methods are shown to be mean-square A-stable for the usual complex scalar linear test problem with multiplicative noise and improve significantly the stabil...

Abstract The aim of this manuscript is to prove some new fixed-point results for the two families multivalued dominated-contractive maps defined on a closed ball in complete multiplicative-metric space. theorems multigraph-dominated are established. We also investigate existence fixed points graphic contractions For illustration, an example provided clarify that hypothesis obtained result valid...

This paper summarises recent results on bicategories of concurrent games and strategies. Nondeterministic concurrent strategies, those nondeterministic plays of a game left essentially unchanged by composition with copy-cat strategies, have recently been characterized as certain maps of event structures. This leads to a bicategory of general concurrent games in which the maps are nondeterminist...

x10 Figure 1 Sagittal slices of a phantom (1 row) and sagittal and axial slices of two subjects (2 and3 row) representing the: (a) frequency shift maps, Δω, as measured from the multiple echo before oxygen modulation; (b) frequency shift map attributed to oxygen, Δωoxy (difference between Δω at minimum and maximum oxygen concentration, multiplied by 10 facilitate visualization); (c) frequency s...