latex form of product of non-commuting variables

edit

in my opinion, this problem can be solved in a clean way by replacing the line 2510 in sage/misc/latex.py

    ...
    2509  elif len(a) == 1:
    2510     return a
    2511  elif is_fname is True:
    ...

with

    ...
    2509  elif len(a) == 1:
    2510     return '{%s}'%a
    2511  elif is_fname is True:
    ...

actually I get a far better result with

...
2505  if a in common_varnames:
2506     return '{\\,\\%s}'%a
2507  elif len(a) == 0:
2508      return ''
2509  elif len(a) == 1:
2510      return '{\\,%s}'%a
2511  elif is_fname is True:
2512      return '{\\,\\rm %s}'%a
2513  else:
2514      return '\\,\\mathit{%s}'%a
...