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Fractional Calculus - A Commutative Method on Real Analytic Functions

Classical Analysis and ODEs 2012-07-30 v1

Abstract

The traditional first approach to fractional calculus is via the Riemann-Liouville differintegral aDxk_{a}D_{x}^{k}. The intent of this paper will be to create a space KK, pair of maps g:Cω(R)Kg: C^{\omega}(\mathbb{R}) \to K and g:KCω(Rg': K \to C^{\omega}(\mathbb{R}), and operator Dk:KKD^{k}: K \to K such that the operator DkD^{k} commutes with itself, the map gg embeds Cω(RC^{\omega}(\mathbb{R}) isomorphically into KK, and the following diagram commutes; \xymatrix{C^{\omega}(\mathbb{R}) \ar[d]_{_{a}D_{x}^{k}} \ar[r]^{g} & K \ar[d]^{D^{k}} C^{\omega}(\mathbb{R}) & K \ar[l]^{g'}} \qquad This implies the following diagram commutes, for analytic ff such that aDxjf_{a}D_{x}^{j}f = 0 (i.e, if f=iIbif = \sum_{i \in I}b_{i}(x-a)ia)^{i}, where {b_{i}} \subset \mathbb{R}, and I \subseteq {j-1, ..., j-\lfloor j \rfloor}); \xymatrix{f \ar@/_3pc/[dd]_{_{a}D_{x}^{j+k}} \ar[d]^{_{a}D_{x}^{j}} \ar[r]^{g} & g(f) \ar[d]^{D^{j}} 0 & \ar[l]^{g'} D^{j}g(f) \ar[d]^{D^{k}} _{a}D_{x}^{j+k}f &\ar[l]^{g'} D^{k}D^{j}g(f)}

Keywords

Cite

@article{arxiv.1207.6610,
  title  = {Fractional Calculus - A Commutative Method on Real Analytic Functions},
  author = {Matthew Parker},
  journal= {arXiv preprint arXiv:1207.6610},
  year   = {2012}
}

Comments

6 pages, comments welcomed

R2 v1 2026-06-21T21:42:44.170Z