well explained, great paper.. and for PDE/FDM use the famous Peter Lax theorem to prove stability and convergence.
congratulations as wellI have just been informed by my publisher John Wiley today (my 66th birthday!) that my second edition will be published 31 August 2018.
I would like to track your research. If you had a blog please share the linkI know. Not any less interesting than my other comments. I'm like those old swats telling stories from their past, again and again