There are some references to using tensor products to solve potential equations that go back to 1964. They involve inverting (division?) of a tensor product matrix. I had some of this in my thesis (1968) and is also on the book I wrote that came our around 1972. I only have one copy left (its pages are turning yellow with age). I can scan those page if you like.
Ed _______________________ Ed Angel Founding Director, Art, Research, Technology and Science Laboratory (ARTS Lab) Professor Emeritus of Computer Science, University of New Mexico 1017 Sierra Pinon Santa Fe, NM 87501 505-984-0136 (home) an...@cs.unm.edu <mailto:an...@cs.unm.edu> 505-453-4944 (cell) http://www.cs.unm.edu/~angel <http://www.cs.unm.edu/~angel> > On Nov 4, 2021, at 2:20 PM, Jon Zingale <jonzing...@gmail.com> wrote: > > Yeah, that direction (multiplying) is the more well tread direction. It is > the inverse problem (division) that I am surprised to see so little written > on. Have you run across much literature on it? > > .-- .- -. - / .- -.-. - .. --- -. ..--.. / -.-. --- -. .--- ..- --. .- - . > FRIAM Applied Complexity Group listserv > Zoom Fridays 9:30a-12p Mtn UTC-6 bit.ly/virtualfriam > un/subscribe http://redfish.com/mailman/listinfo/friam_redfish.com > FRIAM-COMIC http://friam-comic.blogspot.com/ > archives: > 5/2017 thru present https://redfish.com/pipermail/friam_redfish.com/ > 1/2003 thru 6/2021 http://friam.383.s1.nabble.com/
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