Orthogonal Systems in Vector Spaces over Finite Rings

Thang Van Pham, Anh Vinh Le


We prove that if a subset of the $d$-dimensional vector space over a finite ring is large enough, then the number of $k$-tuples of mutually orthogonal vectors in this set is close to its expected value.


orthogonal system; Erdős–Rényi graphs; finite rings

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