Báo cáo toán học: "Sub-Jordan operators: Bishop''''''''s theorem, spectral inclusion, and spectral sets " pptx

Báo cáo toán học: "Wilf-equivalence on k-ary words, compositions, and parking functions" pptx

Báo cáo toán học: "Wilf-equivalence on k-ary words, compositions, and parking functions" pptx

... Krattenthaler [11], Backelin, West and Xin [3], and Jel´ınek and Mansour [9]. 1.1 k-ary words Let [k] = {1, 2, . . . , k} be a totally ordered alphabet of k letters, and let [k] n denote the set of ... and σ ′ = τ ′ (ρ + k). For a given m and n, choose a word x ∈ [m] n (σ), and let M = M(x, m) be its corresponding matrix. Note that M avoids the matrix M(σ, k + ℓ). Color the cell...

Ngày tải lên: 07/08/2014, 21:21

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