Mathematics – Functional Analysis
Scientific paper
2011-05-10
Mathematics
Functional Analysis
40 pages, 7 figures
Scientific paper
We provide a definition of differential 1-forms on the Sierpinski gasket K and their integrals on paths. We show how these tools can be used to build up a Potential Theory on K. In particular, we prove: i) a de Rham re-construction of a 1-form from its periods around lacunas in K; ii) a Hodge decomposition of 1-forms with respect to the Hilbertian energy norm; iii) the existence of potentials of elementary 1-forms on suitable covering spaces of K. We then apply this framework to the topology of the fractal K, showing that each element of the dual of the first Cech homology group is represented by a suitable harmonic 1-form.
Cipriani Fabio
Guido Daniele
Isola Tommaso
Sauvageot Jean-Luc
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