Báo cáo toán học: "The Enumeration of Sequences with Restrictions on their

Báo cáo toán học: "The Enumeration of Sequences with Restrictions on their Partial Sum" docx

... electronic journal of combinatorics 17 (2010), #R160 16The Enumeration of Sequences with Restrictions on their Partial SumsStephen SuenDepartment of Mathematics and StatisticsUniversity of South ... up one,” and each “−t” meaning “go right one, g o down t.” We study the number of paths with conditions on their part ia l sums, on their number of crossings, crossingthe electronic journal of ... Spt+p+r= r.One common way to picture the sequences in relation to their partial sums is by consider-ing the sequences as paths {(j, Sj) : 0  j  pt+p+r}, with each “+1” meaning “go rightone, go...

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Báo cáo toán học: "Explicit enumeration of triangulations with multiple boundaries" pps

... vertex of the triangulation, one obtains a new triangulation with one face less and one more edge on the boundary.(B) if v0lies on the boundary of G, one cuts the resulting map in two parts, with (n1, ... corresponds to the problem of enumeration of planar near-triangulations,solved by Tutte in [9] using the method of recursive decomposition. The same method,applied to the problem of enumeration of ... generating function of planar maps with multiple boundary components viathe repeated application of the so-called loop insertion operator.A simpliﬁed version of loop insertion operation may be described...

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Báo cáo toán học: " The impact of blood pressure hemodynamics in acute ischemic stroke: a prospective cohort study" ppt

... not associated with stroke severity at presentation. For our cohort this hypertension cutoff was a blood pressure of 170/110 mmHg. With the ongoing discussion on management of blood pressure ... patients presenting with lower BP (p = 0.038). We also divided the cohort into those with or without one or more episodes of frank hypotension using the minimum measured dBP cutoff of 70 mmHg. Sixty-five ... baseline hypertension using the above definition. The relative risk of mortality at 90 days for patients with baseline hypertension was 2.05 with a 95% confidence interval of 1.02-4.10 when...

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Báo cáo toán học: "The role of multidisciplinary research and collaboration for improving the resilience of communities to volcanic risk" pot

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Báo cáo toán học: " The status of Cantonese in the education policy of Hong Kong" pot

... of instruction in Hong Kong. Hong Kong: The Cosmos.Cheung, HN. 1972. A Grammar of Cantonese Spoken in Hong Kong. Hong Kong: The Chinese University Press.Curriculum Development Council of Hong ... 2009.Education Commission (EC). 1996. Education Commission Report no. 6. Hong Kong: Government Printer.Education Commission (EC). 2005. Report on review of medium of instruction for secondary schools ... n Hong Kong Education2005)Concerning the cultural diversity of Hong Kong as an international city, there a remany different language policies in educa tion if one takes into consideration...