【创源大讲堂】A TIGHT UPPER BOUND ON THE NUMBER OF NON-ZERO WEIGHTS OF A CONSTACYCLIC C...
摘要:Forasimple-rootlambda-constacyeliccodeCoverF_q,let<ρ>(resp.<ρ,M>)bethesubgroupoftheautomorphismgroupofCgeneratedbythecyclicshiftρ(resp.thesubgroupgeneratedbythecyclicshiftρandthescalarmultiplicationgroupM).LetN_G(C^*)bethemumberoforbitsofasubgroupGoftheautomorphismgroupofCactingonC^*=C\{0}.Inthistalk,weshowexplicitformulasforN_ρ(C^*)andN_<ρ>(C^*).Consequently,weder...