%0 Journal Article %T Finiteness of Hermitian Levels of Some Algebras %A Clotilzio Moreira dos Santos %J Boletim da Sociedade Paranaense de Matem¨¢tica %D 2011 %I Sociedade Brasileira de Matem¨¢tica %X We characterize the hermitian levels of quaternion and octonion algebrasand of an 8-dimensional algebra D over the ground field F, constructed using a weak version of the Cayley-Dickson double process.It is shown that all values of the hermitian levels of quaternion algebras with the hat-involution also occur as hermitian levels of D. We give some limits to the levels of the algebra D over some ground field. %K KeyWords:Quaternion algebra %K octonion algebra %K level %K hermitian level %K sums of squares %K quadratic forms. %U http://www.periodicos.uem.br/ojs/index.php/BSocParanMat/article/view/12850/6759