Models of PA: standard sytems without minimal ultrafilters

A generalization of Cantor's Theorem

The ideal-based triple zero graph of a commutative ring

Real eigenvalues of viscoelastic oscillators involving several damping models

New quadraple hypergeometric series and their integral representation

Asymptotically $P$-periodic solutions of a quantum Volterra integral equation

Oscillation criteria for the second order linear functional - differential equations
with locally integrable coefficients

On one-sided polynomial $L^{1}$ approximation

Generalized almost periodic solutions and generalized asymptotically almost
periodic solutions of inhomogenous evolution equations

The strong convex property and $C_0$-semigroups on some hereditarily
indecomposable Banach spaces