2 problems

Let $d_{w,p}$ be the Lorentz sequence space. Let $\mathcal{SS}$ denote the ideal of strictly singular operators on $d_{w,p}$, let $J^j$ be the ideal generated by the formal identit…

Let $d_{w,p}$ be the Lorentz sequence space, and let $cmathcal K(d_{w,p})$ denote the ideal of compact operators on it. Let $j\colon\ell_p\to d_{w,p}$ be the formal identity, and w…