French Demi-groupe inversif Cited by user ManiacParisien on 05 Aug 2012 En mathématiques, et notamment en algèbre, un demi-groupe inversif est un demi-groupe
English Viktor Wagner Cited by user David Eppstein on 03 Mar 2012 Viktor Vladimirovich Wagner, also Vagner (4 November 1908 – 15 August 1981) was a Russian mathematician, best known for his work in differential geometry and on…
Portuguese Semigrupo inverso Cited by user He7d3r on 15 May 2011 Em matemática, um semigrupo inverso S é um semigrupo em que todo elemento x em S possui um único inverso y em S no sentido de que x = xyx e y = yxy.
English Inverse semigroup Cited by user DOI bot on 05 Jul 2008 In mathematics, an inverse semigroup (occasionally called an inversion semigroup) S is a semigroup in which every element x in S has a unique inverse y in S in the sense…