Resumen: In this paper, we present a complete spectral research of generalized Cesaro operators on Sobolev-Lebesgue sequence spaces. The main idea is to subordinate such operators to suitable Co-semigroups on these sequence spaces. We introduce that family of sequence spaces using the fractional finite differences and we prove some structural properties similar to classical Lebesgue sequence spaces. In order to show the main results about fractional finite differences, we state equalities involving sums of quotients of Euler's Gamma functions. Finally, we display some graphical representations of the spectra of generalized Cesaro operators. Idioma: Inglés DOI: 10.1016/j.jfa.2017.10.010 Año: 2018 Publicado en: JOURNAL OF FUNCTIONAL ANALYSIS 274, 5 (2018), 1424-1465 ISSN: 0022-1236 Factor impacto JCR: 1.637 (2018) Categ. JCR: MATHEMATICS rank: 28 / 313 = 0.089 (2018) - Q1 - T1 Factor impacto SCIMAGO: 2.47 - Analysis (Q1)