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$p$-adic equiangular lines and $p$-adic van Lint–Seidel relative bound

K. Mahesh Krishna Bulletin Polish Acad. Sci. Math. MSC: Primary 12J25; Secondary 46S10, 47S10, 11D88 DOI: 10.4064/ba240825-18-10 Opublikowany online: 31 October 2024

Streszczenie

We introduce the notion of $p$-adic equiangular lines and derive the first fundamental relation between common angle, dimension of the space and the number of lines. More precisely, we show that if $\{\tau _j\}_{j=1}^n$ is a collection of $p$-adic $\gamma $-equiangular lines in $\mathbb Q^d_p$, then $$|n|^2\leq |d|\max \,\{|n|, \gamma ^2 \}.$$ We call this inequality the $p$-adic van Lint–Seidel relative bound. We believe that this complements the fundamental van Lint–Seidel [Indag. Math. 28 (1966)] relative bound for equiangular lines in the $p$-adic case.

Autorzy

  • K. Mahesh KrishnaSchool of Mathematics and Natural Sciences
    Chanakya University Global Campus
    Haraluru, Karnataka 562 110, India
    e-mail

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