Stability of Euler-Lagrange additive inequality in Banach spaces

Abstract: In the paper, we investigate the Hyers–Ulam stability theorem of an Euler–Lagrange additive functional inequality \[ \left\| \sum_{j=1}^{n} \left( \sum_{k=j}^{n} \lambda_k \right) f(x_j – x_{j-1}) \right\| \leq \left\| f\left( \sum_{j=1}^{n} \lambda_j...

On Logarithmic–Power Integrals and Their Extensions

Abstract.  This paper presents several integral formulas inspired by classical results and problems in the existing literature. We study a family of integrals and obtain closed form expressions involving hypergeometric series and harmonic numbers.