Ter Horst, S.Messerschmidt, MiekRan, A.C.M.Roelands, M.2019-11-222019-12Ter Horst, S., Messerschmidt, M., Ran, A.C.M. et al. 2019, 'Equivalence after extension and Schur coupling do not coincide on essentially incomparable Banach spaces', Bulletin of London Mathematical Society, vol. 51, no. 6, pp. 1005-1014.1469-2120 (online)10.1112/blms.12292http://hdl.handle.net/2263/72390Please read abstract in the article.en© 2019 London Mathematical Society. This is the pre-peer reviewed version of the following article : 'Equivalence after extension and Schur coupling do not coincide on essentially incomparable Banach spaces', Bulletin of London Mathematical Society, vol. 51, no. 6, pp. 1005-1014, 2019, doi : 10.1112/blms.12292. The definite version is available at : https://londmathsoc.onlinelibrary.wiley.com/journal/14692120.Banach spaceMatricial coupling (MC)Equivalence after extension (EAE)Schur coupling (SC)Postprint Article