The Parikh functions of sparse context-free languages are quasi-polynomials
arXiv:0807.0718
Abstract
We prove that the Parikh map of a bounded context-free language is a box spline. Moreover we prove that in this case, such a function is rational.
arXiv:0807.0718
We prove that the Parikh map of a bounded context-free language is a box spline. Moreover we prove that in this case, such a function is rational.