Orthogonal graphs modulo power of 2

In this work, we define an orthogonal graph on the set of equivalence classes of (2 nu + delta) - tuples over Z(2n) where n and nu are positive integers and delta = 0, 1 or 2. We classify our graph if it is strongly regular or quasi-strongly regular and compute all parameters precisely. We show that our graph is arc transitive. The automorphisms group is given and the chromatic number of the graph except when delta = 0 and nu is odd is determined. Moreover, we work on subconstituents of this orthogonal graph.