Combinatorics of cyclic-conditional freeness

Abstract: We develop the relevant combinatorics pertaining to cyclic-conditional freeness in order to introduce the adequate sets of cumulants linearizing the cyclic-conditional additive convolution. On our way, we introduce a new non-commutative independence, cyclic freeness. We explain how cyclic-conditional freeness is "reduced" to cyclic freeness by utilizing a multivariate extension of the inverse Markov-Krein transform. We also consider cyclic-conditional multiplicative convolution and prove limit theorems.