Editing 1897 in science (section)

==Mathematics==
* [[David Hilbert]] unifies the field of [[algebraic number theory]] with his treatise ''[[Zahlbericht]]''.
* [[John Edward Campbell]] originates the [[Baker–Campbell–Hausdorff formula]] for multiplication of exponentials in [[Lie algebra]]s.<ref>''[[Proceedings of the London Mathematical Society]]'' '''28''' (1897) 381–390, '''29''' (1898) 14–32.</ref>
* [[Raoul Bricard]] investigates and classifies [[flexible polyhedra]], defining the [[Bricard octahedron]].<ref>{{cite journal|first=R.|last=Bricard|url=http://www-mathdoc.ujf-grenoble.fr/JMPA/PDF/JMPA_1897_5_3_A5_0.pdf|title=Mémoire sur la théorie de l’octaèdre articulé|journal=[[Journal de Mathématiques Pures et Appliquées]]|volume=3|year=1897|pages=113–150|url-status=dead|archiveurl=https://web.archive.org/web/20110717152710/http://www-mathdoc.ujf-grenoble.fr/JMPA/PDF/JMPA_1897_5_3_A5_0.pdf|archivedate=2011-07-17}}</ref>
* [[Henri Brocard]] begins publication of his source book on geometric [[curve]]s, ''Notes de Bibliographie des Courbes Géométriques'', in [[Bar-le-Duc]].<ref>{{cite journal|jstor=3610034|first=Laura|last=Guggenbuhl|authorlink= Laura Guggenbühl |title=Henri Brocard and the Geometry of the Triangle|journal=The Mathematical Gazette|location=London|publisher=[[Mathematical Association]]|volume=37|issue=322|date=December 1953|pages=241–243}}</ref><ref>{{cite journal|first1=Maria do Céu |last1=Silva |first2=António Leal |last2=Duarte |first3=Carlos Correia |last3=de Sá |title=Gallery: Francisco Gomes Teixeira |journal=CIM Bulletin |publisher=Centro Internacional de Matemática |volume=16 |url=http://at.yorku.ca/i/a/a/h/61.dir/number16.htm |accessdate=2012-01-25|date=June 2004|url-status=dead|archiveurl=https://web.archive.org/web/20110716134701/https://at.yorku.ca/i/a/a/h/61.dir/number16.htm|archivedate=2011-07-16}}</ref>