  In this paper the analysis of the result of numerical simulations of pasta
phases using algebraic topology methods is presented. These considerations
suggest that some phases can be further split into (sub)phases and therefore
should be more refined in numerical simulations. The results presented in the
paper can also be used to relate the Euler characteristic from numerical
simulations to the geometry of the phases. The Betti numbers are used as they
provide finer characterization of the phases. It is also shown that different
boundary conditions give different outcomes.
