Báo cáo toán học: "WHERE THE TYPICAL SET PARTITIONS MEET AND JOIN" pdf

Báo cáo toán học: "WHERE THE TYPICAL SET PARTITIONS MEET AND JOIN" pdf

Báo cáo toán học: "WHERE THE TYPICAL SET PARTITIONS MEET AND JOIN" pdf

... THE TYPICAL SET PARTITIONS MEET AND JOIN. Boris Pittel Received: May 16, 1999; Accepted: January 15, 2000 The lattice of the set partitions of [n] ordered by refinement is studied. Suppose r partitions ... is the size of the largest block of p  typically? The answer is: two. And how many two-elements sets are there in p  ? The answer is: only about log 2 n/2....
Ngày tải lên : 07/08/2014, 06:20
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Báo cáo toán học: " Mind the information gap: fertility rate and use of cesarean delivery and tocolytic hospitalizations in Taiwan" pdf

Báo cáo toán học: " Mind the information gap: fertility rate and use of cesarean delivery and tocolytic hospitalizations in Taiwan" pdf

... preparation and analyses, and drafted the manuscript. Edward C. Norton and Shoou-Yih Lee participated in the study design and helped to draft the manuscript. All authors read and approved the final ... =  ˆ P OBBIRTH2004,NI − ˆ P OBBIRTH1996,NI  −  ˆ P OBBIRTH2004,I − ˆ P OBBIRTH1996,I  If the inducement hypothesis held, the inducement effect was expected to be posit...
Ngày tải lên : 20/06/2014, 21:20
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Báo cáo toán học: "On the Continuity of Julia Sets and Hausdorff Dimension of Polynomials" ppsx

Báo cáo toán học: "On the Continuity of Julia Sets and Hausdorff Dimension of Polynomials" ppsx

... study the continuity of Julia set of some rational maps and the stability of the Hausdorff dimension of the Julia set of polynomials z d + c (d ≥ 2)forsome semi-hyperbolic parameters c in the boundary ... x ∈ K meets all but finitely many K n ;and (2) If every neighborhood of x meets infinitely many K n ,thenx ∈ K. We define lim inf K n as the largest set satisfying (1), an...
Ngày tải lên : 06/08/2014, 05:20
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Báo cáo toán học: "On the function “sandwiched” between α(G) and χ(G) V. Y" ppt

Báo cáo toán học: "On the function “sandwiched” between α(G) and χ(G) V. Y" ppt

... where A(G) is the adjacency matrix of G. Then χ(G)=3 2and the electronic journal of combinatorics 4 (1997), #R19 3 and α(G) < min{ rank(B) |B ∈B(G)} by theorem. Acknowledgement. The author is ... Gr¨otschel, L´aszl´oLov´asz, and Alexander Schrijver, Geometric Algorithms and Combina- torial Optimization (Springer-Verlag, 1988). 3. Donald E.Knuth, The Sandwich Theorem”, Electro...
Ngày tải lên : 07/08/2014, 06:20
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Báo cáo toán học: "Counting Pattern-free Set Partitions II: Noncrossing and Other Hypergraphs" ppt

Báo cáo toán học: "Counting Pattern-free Set Partitions II: Noncrossing and Other Hypergraphs" ppt

... selecting one of the m positions for a  (the vertices in [a, n], the gaps between them, and the space after n) and one of the two positions for n  (n and the space after n). All these 2m −3 choices ... get the series G and then equation (22). The radius of convergence is the least positive root of the denominator. Using the last theorem and the inequalities...
Ngày tải lên : 07/08/2014, 06:20
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Báo cáo toán học: "On the number of perfect matchings and Hamilton cycles in -regular non-bipartite graphs" ppsx

Báo cáo toán học: "On the number of perfect matchings and Hamilton cycles in -regular non-bipartite graphs" ppsx

... vertices in V , and assign label x to the smallest vertex. The condition (x, x  ) ∈ F uniquely identifies vertex x  ,andthe labeling of the other vertices in the cycle C follows. Removing the three ... (minimality of x fixes the orientation of the edge), and that the choice of (x, x  ) combined with the information provided by the sequence completely determines the...
Ngày tải lên : 07/08/2014, 06:22
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Báo cáo toán học: "On the orbits of Singer groups and their subgroups" pot

Báo cáo toán học: "On the orbits of Singer groups and their subgroups" pot

... the definition of the f B .NowtheP i and B j form a symmetric tactical decomposition of the tactical configuration whose points are the points of Σ n−1 and whose blocks are the elements of B. Therefore ... the (d−1)-flats is similar to the action of a n-cycle of the symmetric group on n elements on the set of d-element subsets. Lemma 2.2 The G-stabilizer of any (d −1)-fl...
Ngày tải lên : 07/08/2014, 06:23
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Báo cáo toán học: "RSK Insertion for Set Partitions and Diagram Algebras" pps

Báo cáo toán học: "RSK Insertion for Set Partitions and Diagram Algebras" pps

... by partitions in the set Λ k n , and the irreducible representations of CA k+ 1 2 (n) are indexed by partitions in the set Λ k n−1 . Using the Schur-Weyl duality between S n and CA k (n)wegettheidentity n k =  λ∈Λ k n f λ m λ k , ... is the left endpoint of the edge labeled j in d if and only if j is the left endpoint of the edge labeled i in flip(d). Thus the...
Ngày tải lên : 07/08/2014, 08:22
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