The paper gives some insight into the relations between two types of Markov processes – in the strict sense and in the wide sense – as well as into two aspects of periodicity. It concerns Markov processes with finite state space, the elements of which are complex numbers. Firstly it is shown that under some assumptions this space can be transformed in such a way that the resulting Markov proces...

Correlation-driven phenomena in molecular periodic systems are challenging to predict computationally not only because such periodically infinite but also they typically strongly correlated. Here we generalize the variational two-electron reduced density matrix (2-RDM) theory compute energies and properties of correlated systems. The 2-RDM unit cell is directly computed subject necessary $N$-re...

Neurotic and psychotic patients who had been temporarily retired from naval service were reevaluated periodically and rated on degrees of disability by physical evaluation boards. Personal history and symptom variables were correlated with changes in amount of psychiatric disability over a S-yr. period. Recovery or improvement was more rapid and complete in neurotics, but improvement was more p...

We study the size and the external path length of random tries and show that they are asymptotically independent in the asymmetric case but strongly dependent with small periodic fluctuations in the symmetric case. Such an unexpected behavior is in sharp contrast to the previously known results that the internal path length is totally positively correlated to the size and that both tend to the ...

In the paper row-wise periodically correlated triangular arrays are considered. The period length is assumed to grow in time. The Fourier decomposition of the mean and autocovariance functions for each row of the matrix is presented. To construct bootstrap estimators of the Fourier coefficients two block bootstrap techniques are used. These are the circular version of the Generalized Seasonal B...

We model a two-candidate electoral competition in which there is uncertainty about a policy-relevant state of the world. The candidates receive private signals about the true state, which are imperfectly correlated. We study whether the candidates are able to credibly communicate their information to voters through their choice of policy platforms. Our results show that the fact that private in...

High rates of self-employment among ethnic minorities in England and Wales are investigated using a framework in which the self-employment decision is influenced by ethnic-specific attributes as well as sectoral earnings differentials. As expected, differences in an individual’s predicted earnings in paid and self-employment are strongly correlated with self-employment decisions. Individuals wi...

Previous research in corporate entrepreneurship found that selecting the right executive champion and requesting moderate initial funding was strongly correlated with start-up funding. Utilizing credible teams was found to be an important factor for projects receiving over $1,000,000. However, understanding the cognitive abilities of the individuals receiving funding was not assessed. We found ...

We investigated whether speakers’ referential communication benefits from an explicit focus on addressees’ perspective. Dyads took part in a referential communication game and were allocated to one of three experimental settings. Each of these settings elicited a different perspective mindset (none, selffocus, other-focus). In the two perspective settings, speakers were explicitly instructed to...

Abstract Modal property is the crucial factor that can influence vibration characteristics of planetary gear system. Previous studies used time invariant mesh stiffness (TIMS) to study natural characteristics. However, with rotation gear, meshing will change periodically which lead changes modal properties. Based on these properties are ignored in previous studies, a translational-torsional fre...