Institute of Mathematics and Informatics Bulgarian Academy of Sciences
Abstract
A new class of binary constant weight codes is presented. We
establish new lower bound and exact values on A(n1 +n2; 2(a1 +a2); n2) β₯
min {M1;M2}+1, if A(n1; 2a1; a1 +b1) = M1 and A(n2; 2b2; a2 +b2) = M2,
in particular, A(30; 16; 15) = 16 and A(33; 18; 15) = 11