From 07cc7eff168d470717a592a462066d5a89c3cd0e Mon Sep 17 00:00:00 2001
From: kalmar <kalmar@amu.edu.pl>
Date: Wed, 17 May 2017 17:44:36 +0200
Subject: [PATCH] generators of GroupRing (symmetric generating set)

---
 src/GroupRings.jl | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/GroupRings.jl b/src/GroupRings.jl
index d8ea9f3..6f38294 100644
--- a/src/GroupRings.jl
+++ b/src/GroupRings.jl
@@ -160,6 +160,12 @@ function setindex!(X::GroupRingElem, value, g::GroupElem)
    X.coeffs[RG.basis_dict[g]] = value
 end
 
+function generators(RG::GroupRing)
+   S = generators(RG.group)
+   S = unique([S..., [inv(s) for s in S]...])
+   return [RG(s) for s in S]
+end
+
 ###############################################################################
 #
 #   String I/O