On the Problem of the Existence of a Square Matrix U Such That UUT = −I over Zpm
Sunghyu Han · Information · 2017
Building-up construction is one of several methods for constructing self-dual codes. Recently, a new building-up construction method has been developed by S. Han, in which the existence of a square matrix U such that U U T = - I is essential. In this paper, we completely solve the existence problem for U over Z p m , where p is an arbitrary prime number.