Prehl, J. (2010). Diffusion on Fractals and Space-Fractional Diffusion Equations. Ph.D. Thesis, University Verlag Monarch.

has been cited by the following article:

• TITLE: On the Worldwide Trade Dynamics: Some Fractional Aspects, Extremal Trade Constellations and the Therewith Corresponding Entropy, Restructuring the Trade Environment, and Fundamental Relations

  AUTHORS: Asterios Touplikiotis

  KEYWORDS: Space-Time Fractional Diffusion of Varying Order, Entropy on Fractal Structures, Morse Potential, Small-World Networks, The Albert-László-Barabási Model, Topologically Induced Diffusion

  JOURNAL NAME: Theoretical Economics Letters, Vol.16 No.4, August 31, 2026

  ABSTRACT: This paper applies fractional diffusion, the CTRW concept, entropy, and small-world network concepts to global export-import dynamics. It estimates space- and time-fractality orders from trade data, developing a varying order interpretation, and discusses several stylized scenarios for protection, clustering, liberalization, and finance-trade restructuring. The main claim is that global trade dynamics exhibit a subdiffusive character and that entropy changes are connected with fractality order and network structure.