Author: Catalan, E. [C.]
Title: Remarques sur la théorie des moindres carrés.
Description: Bruxelles, Académie royale des Sciences, des Lettres et des Beaux-Arts de Belgique, 1878. Large 4to (28.9 x 22.9 cm) 42 pp. No wrappers. = Important paper by the French-Belgian mathematician Eugène Charles Catalan (1814-1894). "He worked on continued fractions, descriptive geometry, number theory and combinatorics. He gave his name to a unique surface (periodic minimal surface in the space ) which he discovered in 1855. Before that, he had stated the famous Catalan's conjecture, which was published in 1844 and was eventually proved in 2002, by the Romanian mathematician Preda Mihailescu. He introduced the Catalan numbers to solve a combinatorial problem" (Wikipedia). Inscribed and signed by the author on the title page to a colleague at the University of Liège, which, by coincidence, recently celebrated the 200th birthday of its most famous mathematician. Rare offprint (not an excerpt) from the academy's Mémoires. INCLUDED: four loose leaves with hand-written mathematical notes, related to this work. Margins a bit soiled, binding weak, otherwise a very good copy.

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