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                           Technical instruction    (general)
  - Please give your full postal address and e-mail (under your name).
  - Please add a few keywords right below Abstract.
  - The references should be in the format [1], [2, 3], [4-7],.....
  - Definitions, theorems, lemmas, etc. should be numbered separately:
    e.g.
    Definition 1, Definition 2,.....   or  Definition 1.1,  Definition 
1.2,..
    Theorem 1, Theorem 2,....
    Lemma 1, Lemma 2,......
    Remark 1, Remark 2,..........
    and so on.
  - Definitions, theorems, lemmas, etc. should constitute separate sentences
    (they should not be parts of longer sentences, i.e. they must be 
preceded by a dot).
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The bibliography should follow this pattern:
1. for journal articles
    author(s): journal, volume, first page (year of publication), e.g.
    \bibitem{}
    J.~Kijowski and G.~Magli: {\em Rep.~Math.~Phys.\/} {\bf 39}, 99 (1997).
    (Titles of articles can be given.)
2. for books
    author(s): title of the book, publisher, city and year of publication,
    e.g.
    \bibitem{}
    R.~K.~Pathria: {\em Statistical Mechanics\/}, Pergamon Press,
    Oxford 1972.
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Text and abbreviations of words in mathematical formulae,
like  eff,   mech,  adj,  Id,   loc,  dim,  SO(3),  SU(2)       etc.
and mathematical operators like
sin,  cos,  sinh, cosh,   Tr,   Ker,  Ad,  det,   lim,     and so on
should be typed in Roman style (text style),
so please type   \sin    \cos   \ln   etc. instead of  sin  cos  ln,  etc.
If it does not work, please type
{\rm Tr}  {\rm eff}   {\rm mech}...     {\rm loc},  etc.
or  \mathrm{Tr},    \mathrm{eff}...., etc.
or in any other effective way.
For Lie algebras the standard font is \mathfrac
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Please use two very simple and useful commands:  \quad and \qquad .
They produce rubber-like spaces.
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