# Invariants of the Weyl Group of Type $A_{2l}^{(2)}$

## TL;DR

This paper proves that the ring of invariants under the Weyl group of type A_{2l}^{(2)} is polynomial, contributing to the understanding of symmetry properties in algebraic structures.

## Contribution

It establishes the polynomiality of the invariant ring for the Weyl group of type A_{2l}^{(2)}, a previously unconfirmed property.

## Key findings

- The invariant ring is polynomial.
- The proof involves properties of the Weyl group of type A_{2l}^{(2)}.
- This result advances the theory of invariants in algebraic groups.

## Abstract

In this note, we show the polynomiality of the ring of invariants with respect to the Weyl group of type $A_{2l}^{(2)}$.