$k$-bitransitive and compound operators on Banach spaces

N. Bamerni, A. Kilicman


In this this paper, we introduce new classes of operators in complex Banach spaces, which we call $k$-bitransitive operators and compound operators to study the direct sum of diskcyclic operators. We create a set of sufficient conditions for an operator to be $k$-bitransitive or compound. We give a relation between topologically mixing operators and compound operators. Also, we extend the Godefroy-Shapiro Criterion for topologically mixing operators to compound operators.


hypercyclic operators, diskcyclic operators, weakly mixing operators, direct sums

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