location:  Publications → journals → CMB
Abstract view

# A note on $U_n\times U_m$ modular invariants

Published:1997-03-01
Printed: Mar 1997
• Nondas E. Kechagias
Features coming soon:
Citations   (via CrossRef) Tools: Search Google Scholar:
 Format: HTML LaTeX MathJax PDF PostScript

## Abstract

We consider the rings of invariants $R^G$, where $R$ is the symmetric algebra of a tensor product between two vector spaces over the field $F_p$ and $G=U_n\times U_m$. A polynomial algebra is constructed and these invariants provide Chern classes for the modular cohomology of $U_{n+m}$.
 Keywords: Invariant theory, cohomology of the unipotent group
 MSC Classifications: 13F20 - Polynomial rings and ideals; rings of integer-valued polynomials [See also 11C08, 13B25]