We discuss some problems and permutation statistics involving two different types of random permutations. Under the usual model of random permutations, we prove that the shifted coverage of the elements of {1, 2, . . . , k} of a random permutation over {1, 2, . . . , n}; that is, the size of the union of the cycles containing these elements, excluding these elements themselves, follows a negati...

the lake urmia and its satellite wetlands have been selected as a demonstration site for the united nations development program / global environment facility / department of environment conservation of iranian wetlands project. this project aims to demonstrate reduction of the major threats of this wetland protected area coordinated through an integrated management plan. a choice experiment was...

in order to study the relationship between random boolean sets and some explanatory variables, this paper introduces a propagation model. this model can be applied when corresponding poisson process of the boolean model is related to explanatory variables and the random grains are not affected by these variables. an approximation for the likelihood is used to find pseudo-maximum likelihood esti...