I am an undergrad student.We have a course on improper integrals of first and second kind along with beta and gamma function.I am looking for a suitable text that describes the problems and theory in detail.I have referred to S K Mapa,Real analysis but the book is not suitable for me.Can someone suggest any analysis text for improper integrals.
I am looking for the following subtopics:
$1.$ Improper integrals $\int_a^b f(x)dx$ with infinite discontinuity at $a$ and $\int_a^\infty f(x)dx$ in which range of integration is unbounded.
$2.$ Tests for improper integrals such as Comparison test,$\mu$-test etc.
$3.$ Beta gamma function and properties.