Properties
The baker's map preserves the two-dimensional Lebesgue measure.
The map is strong mixing and it is topologically mixing.
The transfer operator maps functions of the unit square to other functions on the unit square; it is given by
The transfer operator is unitary on the Hilbert space of square-integrable functions on the unit square. The spectrum is continuous, and because the operator is unitary the eigenvalues lie on the unit circle. The transfer operator is not unitary on the space of functions polynomial in the first coordinate and square-integrable in the second. On this space, it has a discrete, non-unitary, decaying spectrum.
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