Subspace codes in PG(2n-1,q)

Antonio Cossidente, Francesco Pavese

An $(r,M,2\delta ;k{)}_q$ constant--dimension subspace code, $\delta >1$, is a collection $\mathcal{C}$ of $(k-1)$--dimensional projective subspaces of $\mathrm{PG}(\mathrm{r}-1,\mathrm{q})$ such that every $(k-\delta )$--dime…