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Database Error
Message:MySQL Query fail: INSERT INTO `ga_sessoes` (`id_sessao`, `id_user`, `ip`, `expiracao`, `local`) VALUES ('5a56d1d5a5b055703774b92d9a8ed474', '0', '10.3.119.252, 216.73.217.109', '1777119556', '/fichaartigo?id=640');
MySQL Error:Data too long for column 'ip' at row 1
Date:Saturday, April 25, 2026 at 12:49:16 PM
Script:/fichaartigo?id=640
Data too long for column 'ip' at row 1
Database Error
Message:MySQL Query fail: INSERT INTO `ga_sessoes` (`id_sessao`, `id_user`, `ip`, `expiracao`, `local`) VALUES ('5a56d1d5a5b055703774b92d9a8ed474', '0', '10.3.119.252, 216.73.217.109', '1777119556', '/fichaartigo?id=640');
MySQL Error:Data too long for column 'ip' at row 1
Date:Saturday, April 25, 2026 at 12:49:16 PM
Script:/fichaartigo?id=640
Gazeta de matemática

Entropic groupoids and abelian groups

Following ETHERINGTON, a groupoid G is said to be entropie, if the following condition holds: ab. cd = ac . bd for all a,b,c,d in G.

PDF do Artigo | PDF integral
Gazeta nº 103, pág. nº 3 | Categoria: Artigos | Palavras-Chave: gazeta, matemática, grupos, abelianos, grupóides
Autor(es): José Morgado |