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Báo cáo toán học: "Ascent sequences and upper triangular matrices containing non-negative integers" pot

Báo cáo toán học:
... positive diagonal, and bidiagonal matrices We now turn to some natural subclasses of matrices These are binary matrices, matrices that have no zeros on their diagonal, and bidiagonal matrices First, ... applies and we as follows Insert a new empty row and column between rows and and columns and of C:   0 0 0 1 0 0 0 0 0 1      0        Fill the empty row with all zeros and a rightmost ... sets of matrices and ascent sequences which give rise to interesting structures, order-consecutive set partitions being one example We end with some open problems in section Upper triangular matrices...
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