Lambert multipliers between spaces
In this paper Lambert multipliers acting between spaces are characterized by using some properties of conditional expectation operator. Also, Fredholmness of corresponding bounded operators is investigated.
Layer potentials on boundaries with corners and edges
Locally spectrally bounded linear maps
Let be the algebra of all bounded linear operators on a complex Hilbert space . We characterize locally spectrally bounded linear maps from onto itself. As a consequence, we describe linear maps from onto itself that compress the local spectrum.
Lower s-numbers and their asymptotic behaviour
Lp-essential Spectral Theory of Ordinary Differential Operators With Almost Constant Coefficients