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Properties

Label 3.130.260.3.4
Class number $3$
Dimension $3$
Determinant $130$
Level $260$

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Lattice Invariants

Dimension:$3$
Determinant:$130$
Level:$260$
Density:$0.129888870325139035616001010146\dots$
Group order:$4$
Hermite number:$0.394804606749714232101595341421\dots$
Minimal vector length:$2$
Kissing number:$2$
Normalized minimal vectors: $(1, 0, 0)$
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Theta Series

\(1 \) \(\mathstrut +\mathstrut 2 q^{2} \) \(\mathstrut +\mathstrut 4 q^{6} \) \(\mathstrut +\mathstrut 2 q^{8} \) \(\mathstrut +\mathstrut 4 q^{10} \) \(\mathstrut +\mathstrut 2 q^{12} \) \(\mathstrut +\mathstrut 4 q^{14} \) \(\mathstrut +\mathstrut 4 q^{16} \) \(\mathstrut +\mathstrut 6 q^{18} \) \(\mathstrut +\mathstrut 12 q^{20} \) \(\mathstrut +\mathstrut O(q^{21}) \)

Gram Matrix

$\left(\begin{array}{rrr} 2 & 1 & 0 \\ 1 & 6 & 1 \\ 0 & 1 & 12 \end{array}\right)$

Genus Structure

Genus representatives:
Class number:$3$
 
$\left(\begin{array}{rrr} 2 & 1 & 0 \\ 1 & 6 & 1 \\ 0 & 1 & 12 \end{array}\right)$, $\left(\begin{array}{rrr} 2 & 1 & -1 \\ 1 & 8 & -3 \\ -1 & -3 & 10 \end{array}\right)$, $\left(\begin{array}{rrr} 4 & -2 & -1 \\ -2 & 6 & -2 \\ -1 & -2 & 8 \end{array}\right)$
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Comments

This lattice appears in the Brandt-Intrau-Schiemann Table of Even Ternary Quadratic Forms.