id,summary,reporter,owner,description,type,status,priority,milestone,component,resolution,keywords,cc,merged,author,reviewer,upstream,work_issues,branch,commit,dependencies,stopgaps
28973,Automorphism Fields: Notation of Inverse,gh-DeRhamSource,,"At this stage we have the following problem with the notation of inverses:
{{{
sage: M = Manifold(2, 'M')
sage: X. = M.chart()
sage: aib = M.automorphism_field([[0, 2], [-1, 0]], name='a^(-1)*b')
sage: c = aib.inverse(); c
Field of tangent-space automorphisms a^(-1)*b^(-1) on the 2-dimensional differentiable manifold M
}}}
That is definitely misleading. In this ticket it gets fixed by adding brackets around the element before taking its inverse if the name could cause any confusion:
{{{
sage: c = aib.inverse(); c
Field of tangent-space automorphisms (a^(-1)*b)^(-1) on the 2-dimensional differentiable manifold M
}}}
To solve this, the ticket provides a modification of `is_atomic` in `sage/tensor/modules/format_utilities.py`.",defect,closed,major,sage-9.1,geometry,fixed,automorphisms,egourgoulhon tscrim,,Michael Jung,Eric Gourgoulhon,N/A,,840304928e17abefa37418de9d702090850e06fd,840304928e17abefa37418de9d702090850e06fd,,