On the Second Cohomology Groups of Semidirect Products. Ken-ichi Tahara (1972) Mathematische Zeitschrift
On the semigroup of binary relations on a finite set Štefan Schwarz (1970) Czechoslovak Mathematical Journal
On the semigroup of fully indecomposable relations Chong-Yun Chao, Mou Cheng Zhang (1983) Czechoslovak Mathematical Journal
On the semiprimitivity of inverse semigroup algebras and on theorems by Domanov and Munn. J.S. Ponizovskii (1990) Semigroup forum
On the semiproportional character conjecture. Belonogov, V.A. (2005) Sibirskij Matematicheskij Zhurnal
On the semi-sub-hypergroups of a hypergroup. Massouros, Ch.G. (1991) International Journal of Mathematics and Mathematical Sciences
On the Shemetkov problem for Fitting classes. Guo, Wenbin, Li, Baojun (2007) Beiträge zur Algebra und Geometrie
On the solvability of commutative loops and their multiplication groups Kari Myllylä, Markku Niemenmaa (1999) Commentationes Mathematicae Universitatis Carolinae We investigate the situation when the inner mapping group of a commutative loop is of order 2 p , where p = 4 t + 3 is a prime number, and we show that then the loop is solvable.
On the Specht property of varieties of commutative alternative algebras over a field of characteristic 3 and commutative Moufang loops. Badeev, A.V. (2000) Siberian Mathematical Journal
On the spectra of Johnson graphs. Krebs, Mike, Shaheen, Anthony (2008) ELA. The Electronic Journal of Linear Algebra [electronic only]
On the Splitting of Extensions by a Group of Prime Order. John S. Rose (1970) Mathematische Zeitschrift
On the squares of sets of linear groups Jan Ambrosiewicz (1986) Rendiconti del Seminario Matematico della Università di Padova
On the sructure of non-singular iteration groups on the circle. Ciepliński, Krzysztof (2003) Mathematica Pannonica