Isospectral definite ternary Fq[t]-lattices
2009
Abstract We prove that the representations numbers of a ternary definite integral quadratic form defined over F q [ t ] , where F q is a finite field of odd characteristic, determine its integral equivalence class when q is large enough with respect to its successive minima. Equivalently, such a quadratic form is determined up to integral isometry by its theta series.
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