Editing 1956 in science (section)

==Mathematics==
* February 1 – [[Joseph Kruskal]] publishes [[Kruskal's algorithm]].<ref>{{cite journal|last1=Kruskal|first1 = Joseph B.|doi=10.1090/S0002-9939-1956-0078686-7|title=On the shortest spanning subtree of a graph and the traveling salesman problem|journal=[[Proceedings of the American Mathematical Society]]|volume=7|issue = 1|pages=48–50|year=1956|jstor=2033241|doi-access=free}}</ref>
* December – [[Martin Gardner]] begins his ''Mathematical Games'' column in ''[[Scientific American]]''.
* [[Henri Cartan]] and [[Samuel Eilenberg]] publish a text on [[homological algebra]].<ref>{{cite journal|last=Mac Lane|first=Saunders|author-link=Saunders Mac Lane|title=Review: ''Homological algebra'', by Henri Cartan and Samuel Eilenberg|journal=[[Bulletin of the American Mathematical Society]]|year=1956|volume=62|issue=6|pages=615–624|url=https://www.ams.org/journals/bull/1956-62-06/S0002-9904-1956-10082-7/|doi=10.1090/S0002-9904-1956-10082-7|doi-access=free}}</ref>
* [[Jean-Pierre Serre]] publishes his "GAGA" paper in [[algebraic geometry and analytic geometry]].<ref>{{cite journal|last=Serre|first=Jean-Pierre|title=Géométrie algébrique et géométrie analytique|url=http://www.numdam.org/numdam-bin/item?id=AIF_1956__6__1_0|mr=0082175|year=1956|journal=[[Annales de l'Institut Fourier]]|volume=6|pages=1–42|doi=10.5802/aif.59|doi-access=free}}</ref>