Abstract
Let E be the infinite-dimensional Grassmann algebra over a field F of characteristic zero, and consider L the F-vector space spanned by all generators of E. Let ϕ l be any fixed automorphism of E of order 2 such that L is an homogeneous subspace.
Our goal is to finish the computation of the sequences of ϕ l -codimensions, by finding its exact value for the unique open case, that is, when the subspace of L corresponding to the eigenvalue 1 is finite-dimensional. As a consequence we get the ϕ-codimensions for a large amount of arbitrary automorphisms ϕ of E of order 2.
Key Words:
2000 Mathematics Subject Classification:
ACKNOWLEDGMENTS
I would like to thank Prof. Ana Cristina Vieira for useful comments.
Notes
Communicated by I. Shestakov.