Perturbations of linear 𝑚-accretive operations

Okazawa, Noboru

doi:10.1090/S0002-9939-1973-0313850-0

Perturbations of linear $m$-accretive operations
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by Noboru Okazawa

Proc. Amer. Math. Soc. 37 (1973), 169-174

DOI: https://doi.org/10.1090/S0002-9939-1973-0313850-0

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Abstract:

A sufficient condition is given for the sum $A + B$ of two linear m-accretive operators A and B in a Hilbert space to be m-accretive. This condition is expressed in terms of $\operatorname {Re} (Au,Bu)$ for u in D, where D is a certain linear manifold contained in $D(A + B)$.

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