Abstract:
Application of some known methods of code construction (such as the Vasil'ev,
Plotkin, and Mollard methods) to transitive codes satisfying certain auxiliary conditions yields
infinite classes of large-length transitive codes, in particular, at least $\lfloor k/2\rfloor^2$ nonequivalent perfect
transitive codes of length $n=2^k-1$, $k>4$. A similar result is valid for extended perfect
transitive codes.