Some problen ?? s on chromite

Some Metrical Problems on S "

We present some problems related to right(or bi-)invariant metrics d on the symmetric group of permutations S,. Characterizations and constructions of bi-invariant extremal (in the corresponding convex cone) metrics are given, esp. for n 6 5 . We also consider special subspaces of the metric space (S,,, d ) : unit balls, sets with prescribed distances (L-cliques), "hamiltonian" sets. Here we gi...

on some bayesian statistical models in actuarial science with emphasis on claim count

چکیده ندارد.

On Some Exponential Equations of S . S . Pillai

In this paper, we establish a number of theorems on the classic Diophantine equation of S. S. Pillai, ax − by = c, where a, b and c are given nonzero integers with a, b ≥ 2. In particular, we obtain the sharp result that there are at most two solutions in positive integers x and y and deduce a variety of explicit conditions under which there exists at most a single such solution. These improve ...

Chromite chemistry in SNC meteorites

Some extensions on Fan Ky ’ s inequality

In this paper we study the inequalities of the determinants of the positive definite matrices and the invertible matrices by applying the integral method and matrix theory such that extensions of Fan Ky’s inequality are established. And then an improvement of Fan Ky’s inequality is given by using the positive definiteness of Gram matrix. Mathematics Subject Classification (2010): 15A15, 26D15.