A Course Of Modern Analysis - Second Edition - An Unabridged, Completely Revised Printing Of The First Edition, With Additions (Riemann Integration, Integral Equations, Riemann-Zeta Function) And Corrections, And Consistent With All Subsequent Editions, Save For The 23rd Chapter Dealing With Ellipsoidal Harmonics And Lame's Equation - This Edition Has Been Digitally Enlarged, To Include The Decimal System Of Paragraphing, With Appendix, List Of Quoted Authors, And Comprehensive General Index. Это и многое другое вы найдете в книге A Course of Modern Analysis (E. T. Whittaker)