Bengochea, GabrielOrtigueira, Manuel Duarte2023-11-072023-11-072023-07-022504-3110PURE: 75598028PURE UUID: 1f60c27d-347f-4866-a870-4a881835ef92Scopus: 85165995331WOS: 001036052700001ORCID: /0000-0003-4270-3284/work/151429119http://hdl.handle.net/10362/159683Publisher Copyright: © 2023 by the authors.The fractional scale-invariant systems are introduced and studied, using an operational formalism. It is shown that the impulse and step responses of such systems belong to the vector space generated by some special functions here introduced. For these functions, the fractional scale derivative is a decremental index operator, allowing the construction of an algebraic framework that enables to compute the impulse and step responses of such systems. The effectiveness and accuracy of the method are demonstrated through various numerical simulations.21599649engfractional scale derivativefractional scale-invarianthadamard derivativeMellin transformoperational calculusstretching derivativeAnalysisStatistical and Nonlinear PhysicsStatistics and Probabilityjournal article10.3390/fractalfract7070524https://www.scopus.com/pages/publications/85165995331