Sentence examples for periodic functions from inspiring English sources

"Almost Periodic Functions and Groups" (1934 35) was awarded the American Mathematical Society's Bôcher Prize in 1938.

Then, Weyl almost periodic functions and asymptotically almost periodic functions are considered.

The concept of pseudo almost periodic functions is a natural generalization of almost periodic functions.

Note that the space of almost periodic functions contains the space of periodic functions.

Most of the works deal with asymptotically periodic functions and almost periodic functions (e.g., [2, 3]).

Sums of periodic functions are in the intersection of the classes of quasi-periodic functions and sums of semi-periodic functions.

First, let us recall some definitions and basic results of almost periodic functions, Stepanov almost periodic functions, pseudo-almost periodic functions, and Stepanov-like pseudo-almost periodic functions (for more details, see [2, 14, 15]).

We denote by the set of discrete almost periodic functions.

We first establish two lemmas about S-asymptotically periodic functions.

Purely semi-periodic functions are in the grey strip.

Clearly, the coefficients are all positive 2π-periodic functions.