English

Two-term recurrence formulae for indefinite algebraic integrals

Classical Analysis and ODEs 2012-09-19 v2

Abstract

Two-term recurrence relations are supplied for indefinite integrals of functions that involve factors of the types P2n{P_2}^n, P3n{P_3}^n, P4n{P_4}^n, P1mQ1n{P_1}^m {Q_1}^n, E1P1nE_1 {P_1}^n, P1mQ2n{P_1}^m {Q_2}^n, E1P2nE_1 {P_2}^n, P2mQ2n{P_2}^m {Q_2}^n, P1mQ1nS1p{P_1}^m {Q_1}^n {S_1}^p, E1P1mQ1nE_1 {P_1}^m {Q_1}^n, P1mQ1nS2p{P_1}^m {Q_1}^n {S_2}^p, and P1mQ1nS1pT1q{P_1}^m {Q_1}^n {S_1}^p {T_1}^q, where PiP_i, QjQ_j, SkS_k and TlT_l denote arbitrary polynomials of degree ii, jj, kk and ll in the integration variable, E1E_1 represents the exponential function of an arbitrary linear polynomial in this variable, and mm, nn, pp and qq are arbitrary constant exponents. The 136 relations leave the form of an integrand unchanged and increment or decrement the exponents in steps of unity.

Keywords

Cite

@article{arxiv.1209.3758,
  title  = {Two-term recurrence formulae for indefinite algebraic integrals},
  author = {Detmar Martin Welz},
  journal= {arXiv preprint arXiv:1209.3758},
  year   = {2012}
}

Comments

29 pages, LaTeX2e with amsart.cls, linear formula notation, formulae can be copied into computer-algebra systems

R2 v1 2026-06-21T22:06:45.480Z