Hausdorff Dimension and Topological Entropies of a Solenoid.

The purpose of this paper is to elucidate the interrelations between three essentially different concepts: solenoids, topological entropy, and Hausdorff dimension. For this purpose, we describe the dynamics of a solenoid by topological entropy-like quantities and investigate the relations between them. For L-Lipschitz solenoids and locally λ - expanding solenoids, we show that the topological entropy and fractal dimensions are closely related. For a locally λ - expanding solenoid, we prove that its topological entropy is lower estimated by the Hausdorff dimension of multiplied by the logarithm of λ .