Basic properties and applications of graded fractal bundles related to Clifford structures: An introduction Authors Alvarado F. L. Castillo J. Lawrynowicz O. Suzuki Abstract Using the central extension of the Cuntz C*-algebra, we study the periodicity for corresponding fractals. Downloads PDF Springer Published 25.05.2008 Issue Vol. 60 No. 5 (2008) Section Research articles