نتایج جستجو برای: relation

تعداد نتایج: 294636  

2010
Bratislav D. Iričanin Stevo Stević

and Applied Analysis 3 After k steps we obtain the following formula xn A ⎛ ⎝ A x r/p n−k ⎛ ⎝ A x r/p2 n−k x r/p n−k−1 ⎛ ⎝ A x r/p3 n−k x r/p2 n−k−1x r/p n−k−2

1993
Sheila Glasbey

UK Abstract We describe a computational system which parses discourses consisting of sequences of simple sentences. These contain a range of temporal constructions, including time adverbials, progressive aspect and various aspectual classes. In particular, the grammar generates the required readings, according to the theoretical analysis of (Glasbey, forthcoming), for sentence-final 'then'. 1 S...

Journal: :Eur. J. Comb. 2010
Toufik Mansour Sherry H. F. Yan

Recently, Bouvel and Pergola initiated the study of a special class of permutations, minimal permutations with a given number of descents, which arise from the whole genome duplication-random loss model of genome rearrangement. In this paper, we show that the number of minimal permutations of length 2d− 1 with d descents is given by 2d−3(d− 1)cd, where cd is the d-th Catalan number. We also der...

2009
Ravi P. Agarwal Young-Ho Kim S. K. Sen Martin J. Bohner Eun Fũn

2012
Elena Braverman Başak Karpuz

*Correspondence: [email protected] 1Department of Mathematics and Statistics, University of Calgary, 2500 University Drive N. W., Calgary, AB T2N 1N4, Canada Full list of author information is available at the end of the article Abstract In this paper, we report an error in the paper of the first author in Advances in Difference Equations, 2009, article 104310, present the revised versio...

Journal: :Discrete Mathematics 2006
Chak-On Chow

In this work we count the number of involutory, unimodal, and alternating elements of the group of signed permutations Bn, and the group of even-signed permutations Dn. Recurrence relations, generating functions, and explicit formulas of the enumerating sequences are given. © 2006 Elsevier B.V. All rights reserved. MSC: primary: 05A15; secondary: 05A19; 05A05

Journal: :Electr. J. Comb. 2016
Lily Li Liu Ya-Nan Li

Let [T (n, k)]n,k>0 be a triangle of positive numbers satisfying the three-term recurrence relation T (n, k) = (a1n + a2k + a3)T (n− 1, k) + (b1n + b2k + b3)T (n− 1, k − 1). In this paper, we give a new sufficient condition for linear transformations

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