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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.
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