Abstract
Complementary bivariational bounds are derived on the quantity <
Φ, g
> associated with the linear equation
AΦ
=
f
Hilbert space, where the operator
A
is self-adjoint. The vector
g
is arbitrary, and variational bounds on <
Φ, f
> are taken as the starting-point. Possible applications, including point-wise bounds on
Φ
, are briefly discussed.
Reference13 articles.
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