Top to random shuffles and number of fixed points

Lerna Pehlivan
Carleton University
School of Mathematics and Statistics

Number of fixed points is studied for random permutations and for some different shuffles such as riffle shuffles. We look at the same problem for top to random shuffles. We provide the formulas for the expected value and the variance of the number of fixed points of a permutation obtained after a number of top to random shuffles.


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