1. Quasi-nilpotency of Generalized Volterra Operators on Sequence Spaces

   • N. Chalmoukis
   • G. Stylogiannis

   OriginalPaper Open access 02 August 2021 Article: 173

2. On \(\alpha \)-Firmly Nonexpansive Operators in r-Uniformly Convex Spaces

   • Arian Bërdëllima
   • Gabriele Steidl

   OriginalPaper Open access 02 August 2021 Article: 172

3. Moment Functions on Groups

   • Żywilla Fechner
   • Eszter Gselmann
   • László Székelyhidi

   OriginalPaper Open access 31 July 2021 Article: 171

4. Variation Inequality for the Two-Dimensional Discrete Hardy–Littlewood Maximal Function

   • Fayou Zhao
   • Hongxiu Zhou

   OriginalPaper 31 July 2021 Article: 170

5. Existence and Nonexistence of Positive Solutions for Singular (p, q)-Equations with Superdiffusive Perturbation

   • Nikolaos S. Papageorgiou
   • Patrick Winkert

   OriginalPaper Open access 31 July 2021 Article: 169

   

6. From Invariance Under Binomial Thinning to Unification of the Cauchy and the Gołąb–Schinzel-Type Equations

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   • Jacek Wesolowski

   OriginalPaper Open access 30 July 2021 Article: 168

7. A Characterization of a Local Vector Valued Bollobás Theorem

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   • Abraham Rueda Zoca

   OriginalPaper Open access 30 July 2021 Article: 167

8. Applications of the Formula of Faà di Bruno: Combinatorial Identities and Monotonic Functions

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   • Omran Kouba

   OriginalPaper 27 July 2021 Article: 166

9. Katugampola Fractional Integral and Fractal Dimension of Bivariate Functions

   • S. Verma
   • P. Viswanathan

   OriginalPaper 27 July 2021 Article: 165