Báo cáo toán học: "Longest increasing subsequences in pattern-restricted permutations" pptx

... (231)-avoiding permutations of n letters whose longest increasing subsequence has length k is the same as the number whose longest increasing subsequence has length n−k +1. Itisarrestingthatthenumber of ... decreasing subsequence of length r or an increasing subsequence of length s.Ifwetaker = 3 we see that every permutation in the class S 2k+1 (321) has an increasing subsequence of...

Ngày tải lên: 07/08/2014, 07:21

... first coordinates of π(i j )increaseinj and the second coordinates of π(i j ) are equal. Thus, elements of an increasing subsequence are of the same color, say, p.Thelength of such increasing subsequence ... width l. The length of the longest increasing subsequence for signed permutations em- bedded into the symmetric group of odd order can also be interpreted in terms of rim hook tabl...

Ngày tải lên: 07/08/2014, 06:20

... avoidance and longest increasing subsequences by deriving the limiting distribution of the longest increasing subsequences in τ-avoiding permutations, for each of the possible τ ∈ S 3 . Inspired by the ... distribution. Note that we are considering “alternating subsequences starting with a fall”. The alternative of “alternating subsequences starting with a rise” would yield the...

Ngày tải lên: 07/08/2014, 15:22

... maximum lengh of a cycle in unit circulant graphs on a Dedekind domain quotiented by an ideal with r distinct maximal factors. Dedekind domains are exactly those integral domains in which every ideal ... of combinatorics 12 (2005), #R52 10 A Dedekind ring is simply a quotient of a Dedekind domain. If R is a Dedekind domain, and m i is a maximal ideal of R,thenR/m i is a field and thus cont...

Ngày tải lên: 07/08/2014, 13:21

... approved the final manuscript. Competing interests We declare that we have no significant competing financial, professional, or personal interests that might have influenced the performance or presentation ... freely available online 7 High visibility within the fi eld 7 Retaining the copyright to your article Submit your next manuscript at 7 springeropen.com Su et al. Advances in Differenc...

Ngày tải lên: 20/06/2014, 21:20

... received funding from the Ministry of Science and Innovation of Spain, under the QUAR- TET Project (TIN2009-13992-C02-01). Competing interests The authors declare that they have no competing in- terests. Endnotes a http://www.standards.its.dot.gov/fact ... Intelligent Transport Systems (ITS); Ve- hicular Communications; Part 4: Geographical Addressing and Forwarding for Point-to-Point and P...

Ngày tải lên: 20/06/2014, 20:20

... eects monitoring plays an important role in marine monitoring. Contaminants and their eects on sh as well as on other marine organisms belong to the main topics of international monitoring schemes. ... drawbacks of choosing and applying marker of contaminant eects to marine eld samples. It reects the actual stage of international guidelines for biological eects monitoring in mari...

Ngày tải lên: 20/06/2014, 20:20

... consists in a minimization of the path length, according to the Fermat Principle. Finally, an adaptive IMR has been developed based on the localization of reflection points. Results obtained in a ... simula- tion is presented in Figure 7. First step consists in extracting fast fading by using a running mean. The window’ slengthis40l on the first 50 m, and 100 l elsewhere, according t...

Ngày tải lên: 20/06/2014, 21:20

... efficiently removes transient noise while preserving the slowly varying component in the input signal. In other words, the slowly varying component of desired speech remains in the output of the median filter. ... ms. Since τ p (l) in Eq. (5) is the integer multiple of the sampling period of the input signal, the estimation error of the pitch period depends on the sampling f re- quenc...

Ngày tải lên: 20/06/2014, 21:20

... the goal and scope for energy accounting in conventional agriculture in Austria In line wi th the goal definition and principles of LCA (ISO, 2006) and following the approach taken by Hüls- bergen ... replaced by apples [47]. In determining agricultural production, crop rotation constraints have to be taken into account. In this case, the following crop rotation constraints were ass...

Ngày tải lên: 20/06/2014, 21:20