Geodesic
Hadamard Algebras
Matematičeskie zametki, Tome 96 (2014) no. 2, pp. 207-211

Voir la notice de l'article provenant de la source Math-Net.Ru

The existence problem for Hadamard decompositions in semisimple associative finite-dimensional complex algebras is studied. Under the assumption that the well-known hypothesis of the Hadamard matrices is satisfied, this problem is completely solved for algebras isomorphic to the direct sum of a matrix algebra of order 2 and a semisimple commutative algebra.
Mots-clés : Hadamard matrix, Hadamard decomposition, Hadamard algebra. 
@article{MZM_2014_96_2_a4,
     author = {D. N. Ivanov},
     title = {Hadamard {Algebras}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {207--211},
     publisher = {mathdoc},
     volume = {96},
     number = {2},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2014_96_2_a4/}
}
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D. N. Ivanov. Hadamard Algebras. Matematičeskie zametki, Tome 96 (2014) no. 2, pp. 207-211. http://geodesic.mathdoc.fr/item/MZM_2014_96_2_a4/