Few operators on Banach spaces $C_0(L\times L)$

Using Ostaszewski’s $\mathrm{♣}$-principle, we construct a non-metrizable, locally compact, scattered space $L$ in which the operators on the Banach space $C_0(L\times L)$ exhibit a remarkably simple structure. We provide a detailed analysis and, through a series of decomposition steps, offer an explicit characterization of all operators on $C_0(L\times L)$.