I am preparing a lecture course on the applications of operator theory where I intended to make some numerical analysis application. I was wondering about this question while browsing the literature I can access.

[Lax and Richtmyer][1] (1955) start with a vague reference to [Courant, Friedrichs, and Lewy][2] (1928).

[Trotter][3] (1958) on the other hand refers to von Neumann, without any specific reference.

Since I have no deeper background in numerical analysis, I might be missing some obvious point. So can someone tell me (with a reference) who introduced the notion of stability in numerical analysis?


  [1]: http://www.mathe.tu-freiberg.de/~ernst/Lehre/IVP/Literatur/laxRichtmyer1956.pdf
  [2]: http://www.digizeitschriften.de/dms/img/?PPN=GDZPPN002272636
  [3]: http://projecteuclid.org/euclid.pjm/1103039709