anonanon 152k1212 gold badges233233 silver badges398398 bronze badges $endgroup$ 4 $begingroup$ That is great many thanks a bunch! I also posted an analogous concern in this article: math.stackexchange.com/concerns/2135276/… that You may have some insight on? $endgroup$The Levi-Civita image is most frequently used in three and four dimensions, an