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math.NT2018
Möbius-Frobenius maps on irreducible polynomials
F. E. Brochero Martínez, Daniela Oliveira, Lucas Reis
Let be a positive integer and let be the finite field with elements, where is a power of a prime. This paper introduces a natural action of the Proj…
math.DS2018
Invariant multi-graphs in step skew-products
Katrin Gelfert, Daniel Oliveira
We study step skew-products over a finite-state shift (base) space whose fiber maps are injective maps on the unit interval. We show that certain invariant sets have a multi-…