Краткое введение в имеющий широчайшие применения раздел математики. Автор пишет в предисловии:Special functions are useful and those who need them and those who know them should start to talk to each other. These lectures primarily show how special functions can be used on various mathematical problems. There are two reasons for this. One, these are the most interesting recent applications and new results that I know. And second, the mathematical community at large needs the education on the usefulness of special functions more than most other people who could use them.Посвящение:This volume is dedicated to Gabor Szego who has shown that special functions can be beautiful and useful at the same time.