Anonanon 152k1212 gold badges233233 silver badges398398 bronze badges $endgroup$ four $begingroup$ Which is perfect many thanks a bunch! I also posted an analogous question here: math.stackexchange.com/concerns/2135276/… that you might have some insight on? $endgroup$ The Levi-Civita image is most frequently Employed in a few and 4 Proportions, and also to https://levis4d14703.blogolize.com/an-unbiased-view-of-levis4d-66132954