19 Chapter 4. Power Series Solutions and Special Functions. Section 4.4. REGULAR SINGULAR POINTS. Page 175

 19.1 problem 1(a)
 19.2 problem 1(b)
 19.3 problem 1(c)
 19.4 problem 1(d)
 19.5 problem 2(a)
 19.6 problem 2(b)
 19.7 problem 2(c)
 19.8 problem 2(d)
 19.9 problem 2(e)
 19.10 problem 3(a)
 19.11 problem 3(b)
 19.12 problem 3(c)
 19.13 problem 3(d)
 19.14 problem 4(a)
 19.15 problem 4(b)
 19.16 problem 4(c)
 19.17 problem 4(d)
 19.18 problem 5
 19.19 problem 6
 19.20 problem 8