**Contents**

**Research papers**

- Diego Marques, Elaine Silva: A Note on Transcendental Power Series Mapping the Set of Rational Numbers into Itself
- Werner Georg Nowak: On the critical determinants of certain star bodies
- M.S. Shahrokhi-Dehkordi: On a class of (p, q)-Laplacian problems involving the critical Sobolev-Hardy exponents in starshaped domain
- Albo Carlos Cavalheiro: An approximation theorem for solutions of degenerate semilinear elliptic equations
- Mohammad Ashraf, Nazia Parveen, Bilal Ahmad Wani: Generalized Higher Derivations on Lie Ideals of Triangular Algebras
- Lingeshwaran Shangerganesh, Arumugam Gurusamy, Krishnan Balachandran: Weak Solutions for Nonlinear Parabolic Equations with Variable Exponents

**Erratum**