Xavier Mart'inez-Rivera

activity

20162021

most citedClassification of families of pr- and epr-sequences

6 citations · 18 across the 5 of their papers we have counts for

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Showing 2016Show all

3 papers · 1 filter

math.CO2016★ 5 cited

The signed enhanced principal rank characteristic sequence

Xavier Martínez-Rivera

The signed enhanced principal rank characteristic sequence (sepr-sequence) of an $n \times n$ Hermitian matrix is the sequence $t_{1} t_{2} \dots t_{n}$ , where $t_{k}$ is either $A^{*}$ ,…

math.CO2016★ 5 cited

The enhanced principal rank characteristic sequence over a field of characteristic 2

Xavier Martínez-Rivera

The enhanced principal rank characteristic sequence (epr-sequence) of an $n \times n$ symmetric matrix over a field $F$ was recently defined as $\ell_1 \ell_2 \cdots \ell_…

math.CO2016★ 6 cited

Classification of families of pr- and epr-sequences

Xavier Martínez-Rivera

This paper establishes new restrictions for attainable enhanced principal rank characteristic sequences (epr-sequences). These results are then used to classify two related familie…