Báo cáo toán học: "Using homological duality in consecutive pattern avoidance" pptx

... with a single pattern having no self-overlappings of length exceeding 1. The following result implied by Theorem 1.8 was first conjectured by S. Elizalde in [3] and later proven in [2] by homological ... permutations avoiding elements of these collections as consecutive patterns. In short, the coincidence of the latter generating functions is guaranteed by a length-preserving bijec...

Ngày tải lên: 08/08/2014, 14:23

... deter- mining number of a graph G is the smallest integer r so that G has a determining set of size r. Boutin introduced determining in [5]. Both distinguishing labelings and determining sets illuminate ... the subgraph of G induced by S. A d- distinguishing labeling for H as a graph induces a d-distinguishing labeling for S as a subset of V (G). Proof. Find a d-distinguishing labeling for...

Ngày tải lên: 07/08/2014, 15:22

... empty intersection while their images F 2 and F  2 have non- empty intersection. 2. Edges F 1 and F  1 have non-empty intersection but φ and φ  are defined differently in some intersection point. An ... is an injection with probability at least ( 1 e −o(1)) a , giving a combinatorial proof to a weakened Stirling formula! (Apart from Lemma 4, this is the only result in the paper not using...

Ngày tải lên: 07/08/2014, 15:23

... the topics. All informative templates are used in this step, the process considers sentences containing the potential topics and matching informative patterns. The instantiated informative templates ... topics according to the reader's inter- est by motivating the topics, describing entities, defining concepts and so on. This kind of ab- stract could be used in tasks such as a...

Ngày tải lên: 17/03/2014, 07:20

... not the existing linguistic data. Conclusion We have presented in this paper an ongoing software development project that is still in its early phases. In the introduction and in the first ... study, the kinds of linguistic difficulties that a minority group is encountering. In such a case one cannot help but to think about the advantages that technology can offer, especiall...

Ngày tải lên: 31/03/2014, 04:20

... 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

... 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

... 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