Báo cáo toán học: "Compositions of Random Functions on a Finite Set" ppt

... Markov Chains and Random Walks on Graphs” http://stat.berkeley.edu/users/aldous. [2] P.Diaconis and D.Freedman, Iterated Random Functions, SIAM Review 41 No. 1, p 45–76. [3] J.C.Hansen and J.Jaworski, ... exactly β to W . the electronic journal of combinatorics 9(1)(2002), #R26 6 Compositions of Random Functions on a Finite Set Avinash Dalal MCS Department, Drexel Univers...

Ngày tải lên: 07/08/2014, 06:23

... 2007 AMS classification: 0 5A0 5, 05C30, 0 5A1 5, 0 5A1 8. Abstract The idea of graph compositions, which was introduced by A. Knopfmacher and M. E. Mays, generalizes both ordinary compositions of positive ... integers and par- titions of finite sets. In their original paper they developed formulas, generating functions, and recurrence relations for composition counting functions for...

Ngày tải lên: 07/08/2014, 13:21

... Colour-Flavour Transformation of lattice gauge theory to give a combinatorial expansion of an interesting family of unitary matrix integrals. In addition, we give a simple combinatorial derivation of ... express the average value of | Tr(U k )| 2n as a sum over partitions of n with at most k rows whose terms count certain standard and semistandard Young tableaux. We combine...

Ngày tải lên: 07/08/2014, 15:22

... Langmuir 1998, 14:6037-6044. 40. Curri ML, Agostiano A, Manna L, Monica MD, Catalano M, Chiavarone L, Spagnolo V, Lugara M: Synthesis and characterization of CdS nanoclusters in a quaternary ... intermicellar nucleation and growth, and particle aggregation [26, 27]. A variation of this synthetic path could proceed by replacing the counterion of the surfactant, and only then the...

Ngày tải lên: 20/06/2014, 20:20

... v 5 . Each of these is a permutation of the symbols coordinates of V . If we call these permuta- tions a, b and c, respectively, we see that a, bab, cbabc and cac are the standard generators of the ... Figures 4 and 6, ∗ Department of Combinatorics and Optimization, University of Waterloo, Waterloo, ON, N2L 3G1, Canada; kpurbhoo@math.uwaterloo.ca. the electronic journal of...

Ngày tải lên: 07/08/2014, 21:20

... d k n−2 (λ). the electronic journal of combinatorics 16 (2009), #R32 16 Alternating permutations are permutations which fall in and only in blocks of length two . A natural generalisation comes by considering ... electronic journal of combinatorics 16 (2009), #R32 2 References [1] Robin Chapman and Lauren K. Williams. A conjecture of Stanley on alternating permutations. The Elec...

Ngày tải lên: 07/08/2014, 21:21

... get a 1 Aa 2 A · · · a k AxA = xA a 1 Aa 2 A · · · a k A = 1A a 1 a 2 · · · a k ∈ A. Lemma 4.2. If C = ∅ is regular, then there exists C ′ such that (i) ∅ = C ′ ⊆ C, the electronic journal of ... helpful conversations regard- ing this material and Anthony Evans and Ian Wanless for sharing several articles and preprints related to the Ha ll-Paige conjecture. Lastly I t...

Ngày tải lên: 07/08/2014, 21:21

... subsp. vulgare, Stellaria media). Several (S. capraea, Taraxacum sp., E. angustifolium) had already appeared in spruce plots in great numbers in summer 1996, only a few months after ... trans- formations d’azote dans les deux sites. (© Inra/Elsevier, Paris.) amendement calcaro-magnésien / forêt / minéralisation / nitrification / végétation *...

Ngày tải lên: 08/08/2014, 14:21

... between categories of frost damage. For each growing season, an analysis of variance (ANOVA) was applied to compare the GU lengths (which are continuous quantitative variables) ... primordia contained in the bud; stage 5, at least one leaf has completely emerged; stage 6, intense elongation of internodes; and stage 7, elongation finished. Thi...

Ngày tải lên: 08/08/2014, 14:21

... surface of Si like a thin film. As a result, LRA stage gradually tran- sits to SLA stage. The second stage, SLA, is characterized by formation of nanocones on the irradiated surface of a semiconductor by ... Medvid * , Pavels Onufrijevs and Alexander Mychko Abstract On the basis of the analysis of experimental results, a two-stage mechanism of nanocones formation on...

Ngày tải lên: 20/06/2014, 22:20