The Poe Shadow October 8, 1849. He had previously corresponded with Poe about providing legal support for a new publication, "The Stylus". Clark feels obliged to look into the mysterious circumstances surrounding Poe's death, despite protests from his fiancée Hattie Blum and his friend Peter Stuart. Clark's journey takes him to Paris to seek out the real-life inspiration for Poe's character C. Auguste Dupin, a man of intellect who could help unravel the mystery. After eliminating several possibilities, he meets Baron C.A. Dupin, a famous lawyer, and a detective with a similar name, Auguste Duponte. After a confrontation with the Baron Dupin and
Dupin cyclide "R" are a 3-dimensional vectors, and "A" and "B" are constants. Families of cyclides give rise to various cyclidic coordinate geometries. In Maxime Bôcher's 1891 dissertation, "Ueber die Reihenentwickelungen der Potentialtheorie", it was shown that the Laplace equation in three variables can be solved using separation of variables in 17 conformally distinct quadric and cyclidic coordinate geometries. Many other cyclidic geometries can be obtained by studying R-separation of variables for the Laplace equation. Dupin cyclide In mathematics, a Dupin cyclide or cyclide of Dupin is any geometric inversion of a standard torus, cylinder or double cone. In particular, these latter