Recently, Antoniadis, Konitopoulos and Savvidy introduced, in the context of the so-called extended gauge theory, a procedure to construct background-free gauge invariants, using non-abelian gauge potentials described by ...

In this paper, using the apparatus of the Clifford bundle formalism, we show how straightforwardly solve in Minkowski space-time the Dirac-Hestenes equation - which is an appropriate representative in the Clifford bundle ...

In this paper, using the apparatus of the Clifford bundle formalism, we show how straightforwardly solve in Minkowski space-time the Dirac-Hestenes equation - which is an appropriate representative in the Clifford bundle ...

In this brief paper we propose to prove a theorem on non-classical symmetries for systems of differential equations whose solutions are related by means of a linear constraint. What we obtain is a representation of the ...

Nesta tese fazemos um profundo estudo sobre as Transformações de Bäcklund (BT). Essas deixam as equações de uma teoria específica invariantes. Escolhemos o modelo de Toda generalizado dos quais obteremos as BT, essa escolha ...