Sp. Clarke et Jf. Cornwell, INVOLUTIVE AUTOMORPHISMS OF THE CLASS OF AFFINE KAC-MOODY ALGEBRAS B(L)(1), Journal of physics. A, mathematical and general, 27(1), 1994, pp. 131-152
All the conjugacy classes of involutive automorphisms of the affine Ka
c-Moody algebras B(l)(1) for l greater-than-or-equal-to 1 are determin
ed using the matrix formulation of automorphisms of an affine Kac-Mood
y algebra.