Existence and uniqueness results for a fractional Riemann-Liouville nonlocal thermistor problem on arbitrary time scales

Using a fixed point theorem in a proper Banach space, we prove existence and uniqueness results of positive solutions for a fractional Riemann-Liouville nonlocal thermistor problem on arbitrary nonempty closed subsets of the real numbers.
Comment: This is a preprint of a paper whose final and definite form is with 'Journal of King Saud University - Science', ISSN 1018-3647. Submitted 16-Dec-2016; revised 18-Feb-2017; accepted for publication 14-March-2017