%0 Journal Article %T Regularities and subspectra for commutative Banach algebras %A Jos¨¦ Sa¨˛l Campos Orozco %A Antoni Wawrzy¨˝czyk %J International Journal of Mathematics and Mathematical Sciences %D 2005 %I Hindawi Publishing Corporation %R 10.1155/ijmms.2005.2399 %X We introduce regularities in commutative Banach algebras in such a way that each regularity defines a joint spectrum on the algebra that satisfies the spectral mapping formula. %U http://www.hindawi.com/journals/ijmms/2005/678789/abs/