| The product of C 1 summability with an N p summability defines C 1 ā
N p summability. |
| The Fejer kernel is one of the most important summability kernel in Fourier series. |
| The product of N p summability with a C1summability defines N p. Cā1 summability. |
| One of the most thoroughly studied matrix methods in summability is a Riesz method. |
| Exercises and problems also explain how Borel summability can be used to solve problems concerning formal expansions as well as improving the accuracy of asymptotic estimates. |
