Abstract
It will be shown that one can obtain from a differential-difference equation reformulation exact closed-form solutions to a class of Stefan problems in cylinders with inverse-square thermal heterogeneity: in particular, new interfacial evolutions were discovered for this class of problems, which Gottlieb's approach [Appl. Math. Lett. 15 (2002) 167–172] had not been able to produce, alongside their associated exact closed-form temperature distributions.
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