Abstract
We describe all closed sesquilinear forms associated with m-sectorial extensions of a densely defined sectorial operator with vertex at the origin.
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Arlinskii, Y.M. Maximal sectorial extensions and closed forms associated with them. Ukr Math J 48, 809–827 (1996). https://doi.org/10.1007/BF02384168
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DOI: https://doi.org/10.1007/BF02384168