Báo cáo toán học: "Determinant expressions for q-harmonic congruences and degenerate Bernoulli numbers" ppt

Báo cáo toán học: "Determinant expressions for q-harmonic congruences and degenerate Bernoulli numbers" ppt

Báo cáo toán học: "Determinant expressions for q-harmonic congruences and degenerate Bernoulli numbers" ppt

... combinatorics 15 (2008), #R63 16 Determinant expressions for q-harmonic congruences and degenerate Bernoulli numbers Karl Dilcher ∗ Department of Mathematics and Statistics Dalhousie University, Halifax, ... [p] q ), (1.4) for primes p ≥ 3. More recently Shi and Pan [16] extended (1.3) to H p−1 (q) ≡ p − 1 2 (1 − q) + p 2 − 1 24 (1 − q) 2 [p] q (mod [p] 2 q ), for primes...
Ngày tải lên : 07/08/2014, 15:23
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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

... of a standard tableaux T λ of shape λ and vacillating tableaux P λ of shape λ and length 2k for some λ ∈ Λ k n . Our bijection uses jeu de taquin and RSK column insertion. If T is a standard ... Dulucq and Sagan [DS] extend this insertion to work for partial matchings (and other generalizations for skew oscillating tableaux) and Roby [Ry2] shows that the growth diagrams also...
Ngày tải lên : 07/08/2014, 08:22
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Báo cáo toán học: "Extremal problems for t-partite and t-colorable hypergraphs" ppsx

Báo cáo toán học: "Extremal problems for t-partite and t-colorable hypergraphs" ppsx

... x j = 0 for some j ∈ {1, 2, . . . , t}. Let a k = |V k |, a j = |V j | and  = x k a j a k /(a j + a k ). Define a new weighting x  by x  v = x v for v ∈ V \(V k ∪ V j ), x  v = /a j for v ... x v for v ∈ V \(V k ∪ V j ), x  v = /a j for v ∈ V j and x  v = x k − /a k for v ∈ V k . It is straightforward to check that x  ∈ S p and λ(G, x  ) > λ(G, x), co...
Ngày tải lên : 07/08/2014, 15:23
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Báo cáo toán học: "Graph Theory for Metric Dimension and Diameter" docx

Báo cáo toán học: "Graph Theory for Metric Dimension and Diameter" docx

... undirected, and simple. The vertex set and edge s et of a graph G are denoted by V (G) and E(G). For vertices v, w ∈ V (G), we write v ∼ w if vw ∈ E(G), and v ∼ w if vw ∈ E(G). For S ⊆ V (G), ... G ∗ ∼ = P D+1 and for some k ∈ [2, D − 1], the vertices u ∗ k−1 and u ∗ k+1 of G ∗ are both not of type (1). Then u ∗ k−1 and u ∗ k+1 are both of type (N). Proof. Let x and y...
Ngày tải lên : 08/08/2014, 12:22
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Báo cáo hóa học: " Selection combining for noncoherent decode-and-forward relay networks" pptx

Báo cáo hóa học: " Selection combining for noncoherent decode-and-forward relay networks" pptx

... Access Selection combining for noncoherent decode -and- forward relay networks Ha X Nguyen * and Ha H Nguyen Abstract This paper studies a new decode -and- forward relaying scheme for a cooperative wireless ... is thatasourcenodecooperateswithothernodes(or relays) in the network to form a virtual multiple antenna sys tem [1-7], hence providing spatial diversity. Amplify- and- forward (...
Ngày tải lên : 20/06/2014, 22:20
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Báo cáo toán học: "Meta-Fibonacci Sequences, Binary Trees and Extremal Compact Codes" pptx

Báo cáo toán học: "Meta-Fibonacci Sequences, Binary Trees and Extremal Compact Codes" pptx

... “greedy” algorithm for constructing a sequence of optimal tree/codes for successive values of n and a fixed value h. We denote these trees T n,h for natural numbers n and h and call them greedy ... t h−1 . Proof. For any h, the result is true for n = h + 1 since there is only one tree with h + 1 leaves and height h. Similarly it is true for n = 2 h . Assume the result is tr...
Ngày tải lên : 07/08/2014, 13:21
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Báo cáo toán hoc:" Noncommutative determinants, Cauchy–Binet formulae, and Capelli-type identities " pptx

Báo cáo toán hoc:" Noncommutative determinants, Cauchy–Binet formulae, and Capelli-type identities " pptx

... See e.g. [12, 19, 30, 32, 37] for theorems of noncommutative linear algebra for row-commutative matrices; and see also [32, secs. 5 and 7] for some beautiful q- and q-generalizations. the electronic ... noncommutative linear algebra for row-pseudo-commuta tive matrices include Cramer’s rule for the inverse matrix [1 5, 31, 39] and the Jacobi identity for co- factors [31],...
Ngày tải lên : 08/08/2014, 01:20
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Báo cáo toán học: "Graphical condensation, overlapping Pfaffians and superpositions of matchings" pptx

Báo cáo toán học: "Graphical condensation, overlapping Pfaffians and superpositions of matchings" pptx

... {b i , r i : b i and r i are of the same colour} =   e∈r e e  ∪   e∈b e e  . For an arbitrary graph H and subsets V ′ ⊆ V(H) and E ′ ⊆ E(H) introduce the notation [H − V ′ − E ′ ] for the graph ... G, and let R = {r 1 , . . . , r k } and B = {b 1 , . . . , b k }. Le t U := A ∩ (R ˙ ∪ B) and V := B ∩ (R ˙ ∪ B), and assume that |U| = |V |. Let B U := B ∩ U, B V := B ∩ V...
Ngày tải lên : 08/08/2014, 12:22
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Báo cáo toán học: "Unimodal rays in the regular and generalized Pascal pyramid" ppt

Báo cáo toán học: "Unimodal rays in the regular and generalized Pascal pyramid" ppt

... now, that s 1 and s 2 are given, and then determine all positive divisor pairs (s 3 , s 4 ) such that s 3 s 4 = s 1 s 2 + 1. Then the parameters s i and h 1 , h 2 generate u, n, t and κ as above. ... + 6 − u and a + = n + 3t + 6 + u. Since both a − and a + are of the same parity and a − a + is even, a − and a + must both be even. Thus a − /2 and a + /2 are integers, one of t...
Ngày tải lên : 08/08/2014, 14:23
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