11 can be reduced to 10

Laffey and Smigoc proved that for every 2x2 doubly nonnegative integer matrix A, icpr(A) is less than or equal to 11. We prove that 11 can be replaced by 10, and show that for many small matrices, even by 9.15

Publication Details

Journal
ArXiv.org
Published
2025-06-15
Primary Topic
graph theory and CDMA systems
Type
article
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article

11 can be reduced to 10

ArXiv.org
graph theory and CDMA systems
article

11 can be reduced to 10

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Abstract

Laffey and Smigoc proved that for every 2x2 doubly nonnegative integer matrix A, icpr(A) is less than or equal to 11. We prove that 11 can be replaced by 10, and show that for many small matrices, even by 9.15

ArXiv.org
Openalex Percentile: Top 53%
graph theory and CDMA systems
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11 can be reduced to 10 · ArXiv.org (2025) | TGRS Research Map | TGRS