Title of article :
Expected value of the minimal basis of random matroid and distributions of q-analogs of order statistics
Author/Authors :
Wojciech Kordecki، نويسنده , , Wojciech and ?yczkowska-Han?kowiak، نويسنده , , Anna، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Abstract :
We formulate and prove a formula to compute the expected value of the minimal random basis of an arbitrary finite matroid whose elements are assigned weights which are independent and uniformly distributed on the interval [0, 1]. This metod yields an exact formula in terms of the Tutte polynomial. We give a simple formula to find the minimal random basis of the projective geometry P G ( r − 1 , q ) . In the second part we give a distribution and asymptotic distributions of q-analogs of the k-th order statistics and the intermediate order statistics with r − k → ∞ when n is a number of elements of the projective geometry P G ( r − 1 , q ) . The proofs will appear in a forthcoming publications.
Keywords :
Tutte polynomials , Order statistics , matroids
Journal title :
Electronic Notes in Discrete Mathematics
Journal title :
Electronic Notes in Discrete Mathematics