Andrzej Komisarski

activity

20142024

most citedOn the behavior of integrable functions at infinity

1 citations · 1 across the 6 of their papers we have counts for

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math.FA2014

Sums of compositions of pairs of projections

Andrzej Komisarski, Adam Paszkiewicz

We give some necessary and sufficient conditions for the possibility to represent a Hermitian operator on an infinite-dimensional Hilbert space (real or complex) in the form $\sum_…

math.FA2014

On the stability of the existence of fixed points for the projection-iterative methods with relaxation

Andrzej Komisarski, Adam Paszkiewicz

We consider an $α$ -relaxed projection $P_{A}^{α} : H \to H$ given by $P_{A}^{α} (x) = α P_{A} (x) + (1 - α) x$ where $α \in [0, 1]$ and $P_{A}$ is the projection onto a non-empty, convex and closed subset $A$ …