On the generating function for consecutively weighted permutations
نویسندگان
چکیده
منابع مشابه
On the generating function for consecutively weighted permutations
1. Weighted enumeration For a vector x = (x1, . . . , xk) of k distinct real numbers, define Π(x) to be the standardization of the vector x, that is, the unique permutation σ = (σ1, . . . , σk) in Sk such that for all indices 1 ≤ i < j ≤ k the inequality xi < xj is equivalent to σi < σj. Let S be a set of permutations in the symmetric group Sm+1. We say that a permutation π in Sn avoids the set...
متن کاملcompactifications and function spaces on weighted semigruops
chapter one is devoted to a moderate discussion on preliminaries, according to our requirements. chapter two which is based on our work in (24) is devoted introducting weighted semigroups (s, w), and studying some famous function spaces on them, especially the relations between go (s, w) and other function speces are invesigated. in fact this chapter is a complement to (32). one of the main fea...
15 صفحه اولA Mthod for Generating the Turbulent Intermittency Function
A detection method based on sensitization of a squared double differentiated signal is developed which discriminates the turbulent zones from laminar zones quite accurately. The procedure adopts a variable threshold and a variable hold time of the order of the Kolmogorov time scale. The output file so generated, includes all the information for further analysis of the turbulent signal.
متن کاملWeighted Lonesum Matrices and Their Generating Function
A lonesum matrix is a (0, 1)-matrix uniquely determined by its column and row sums, and the sum of its all entries is called the “weight” of it. The generating function of numbers of weighted lonesum matrices of each weight is given. A certain explicit formula for the number of weighted lonesum matrices is also proved.
متن کاملOn Generating Permutations Under User-Defined Constraints
In this paper, a method to generate permutations of a string under a set of constraints decided by the user is presented. The required permutations are generated without generating all the permutations. Keywords— Permutations; Algorithm; Matrices; Constraints; Determinants Full Text: http://www.ijcsmc.com/docs/papers/February2014/V3I2201414.pdf
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: European Journal of Combinatorics
سال: 2014
ISSN: 0195-6698
DOI: 10.1016/j.ejc.2014.05.001