Faculty Publications

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Relation between kneading matrices of a map and its iterates
(Korean Mathematical Society kms@kms.or.kr, 2020) Gopalakrishna, C.; Murugan, V.
It is known that the kneading matrix associated with a continuous piecewise monotone self-map of an interval contains crucial combinatorial information of the map and all its iterates, however for every iterate of such a map we can associate its kneading matrix. In this paper, we describe the relation between kneading matrices of maps and their iterates for a family of chaotic maps. We also give a new definition for the kneading matrix and describe the relationship between the corresponding determinant and the usual kneading determinant of such maps. ©2020 Korean Mathematical Society.
Invariance of kneading matrix under conjugacy
(Korean Mathematical Society, 2021) Gopalakrishna, C.; Veerapazham, M.
In the kneading theory developed by Milnor and Thurston, it is proved that the kneading matrix and the kneading determinant associated with a continuous piecewise monotone map are invariant under orientation-preserving conjugacy. This paper considers the problem for orientation-reversing conjugacy and proves that the former is not an invariant while the latter is. It also presents applications of the result towards the computational complexity of kneading matrices and the clas-sification of maps up to topological conjugacy. © 2021 Korean Mathematial Soiety.