Abstract
We derive some classical and fractional properties of \(_pR_q(\lambda ,\eta ;z)\) function using fractional calculus approach involving Hilfer fractional derivative operator. Further, we introduce an integral operator which contains \(_pR_q(\lambda ,\eta ;z)\) function as a kernel: \(\begin{aligned} \left( {\mathcal{R}}_{\lambda ,\eta ,\mathbf{u}_{\mathbf{p}},\mathbf{v}_{\mathbf{q}},\omega ;a+} f\right) (x) = \int _a^x \left( x-r\right) ^{\eta -1} {}_pR_q\!\left[ {\left. {\begin{array}{c} \mathbf{u}_{\mathbf{p}}\\ \mathbf{v}_{\mathbf{q}}\end{array}} \ \right| \lambda ,\eta ; \omega (x-r)^\lambda }\right] f(r) \ \mathrm{d}r, \;\;\; (x>a), \end{aligned}\)in space L(a, b). We establish the composition of the operator \({\mathcal{R}}_{\lambda ,\eta ,\mathbf{u}_{\mathbf{p}},\mathbf{v}_{\mathbf{q}},\omega ;a+}\) with the Riemann–Liouville (R–L) fractional integral and differential operators. Some composition properties of integral operator \({\mathcal{R}}_{\lambda ,\eta ,\mathbf{u}_{\mathbf{p}},\mathbf{v}_{\mathbf{q}},\omega ;a+}\) and their inversion have also been exhibited.
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The authors are grateful to the anonymous referees for their valuable comments and suggestions, which led to the improvement of the paper.
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Pal, A., Jana, R.K. & Shukla, A.K. Generalized Fractional Calculus Operators and the \(_pR_q(\lambda ,\eta ;z)\) Function. Iran J Sci Technol Trans Sci 44, 1815–1825 (2020). https://doi.org/10.1007/s40995-020-00979-0
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DOI: https://doi.org/10.1007/s40995-020-00979-0
Keywords
- Riemann–Liouville (R–L) fractional integral and derivative operators
- Hilfer fractional derivative operator
- \({}_pR_q(\lambda , \eta ;z)\) function
- \({\mathcal{P}}_\nu\)-transform