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Conditions for the causality of nonlinear operators defined on a function space
1965
Quarterly of Applied Mathematics
Preserved Fulltext
This note considers nonlinear operators T with both range and domain subsets of the space of complex n-vector-valued functions of the real variable t for -co <t< oo. Conditions, in which energy-type quantities play a key role, are presented under which T is causal in the following sense:
doi:10.1090/qam/188836
fatcat:ycxlsenwovfi7dux5j5bcpcyie