Special squares in the category of Lie algebras.

• Autores: Daniel Tarazona Ferrer
• Localización: Stochastica: revista de matemática pura y aplicada, ISSN 0210-7821, Vol. 6, Nº. 2, 1982, págs. 137-147
• Idioma: español
• Títulos paralelos:
  • Cuadrados especiales en la categoría de álgebras de Lie.
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• Resumen

  • In this paper the concepts of mixed cartesian square and quasi-cocartesian square, already known in the category of groups, are adapted to the category of Lie algebras. These concepts can be used in the study of the obstructions of Lie algebra extensions in the same way that Wu has studied the obstructions of group extensions.