Functional equations with causal operators

A treatise on the calculus of finite differences

A treatise on the calculus of finite differences

Asymptotic behavior and stability problems in ordinary differential equations

Differential and Difference Equations with Applications

Integral operators in the theory of linear partial differential equations

Iterative functional equations

Linear partial differential operators

Computational techniques for the summation of series

Volterra integral and functional equations

Differential Equations: A Dynamical Systems Approach

Vorlesungen über Funktionalgleichungen und ihre Anwendungen

Functional differential equations

Elements of the theory of functions and functional analysis, by A.N. Kolmogorov and S.V. Fomin

Advances in Electronics and Electron Physics (Advances in Imaging and Electron Physics)

Real Analysis

Mathematics of the 19th Century

Morrey Spaces

Functional analysis on the eve of the 21st century