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
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 Pseudogroup Cited by user He7d3r on 03 Mar 2011 In mathematics, a pseudogroup is an extension of the group concept, but one that grew out of the geometric approach of Sophus Lie, rather than out of abstract algebra (suc…
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…