Key points are not available for this paper at this time.
AbstractLet . Let and . Consider the formal second-order differential operatorin . We show that the closure of is quasi-m-accretive under certain conditions on the coefficients.Mathematics Subject Classification (2020): 35J1547B4447F05Key words: Second-order elliptic operatorunbounded coefficientsm-accretiveendpoint estimates
Duc et al. (Mon,) studied this question.