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Summary: Cyrillic and Math

Short summary: Cyrillic is not need in a math font encoding. Text will be
sufficient.

Thanks to all, who have replied to my question I asked about a week ago on 
RUSTEX-L@ubvm.BITNET:

Here's a curious question:

If you are doing a paper in russian or another language written in
cyrillic, do you use cyrillic letters inside mathematical formulae?
If yes, what for do you use them and in which style do you set them
(upright, italic, bold sans serif...)?

Are there other conventions you are aware of, which differ from the
standard anglo-american usage?

Yours, J"org Knappen.

The most concise answer came
From: dlv@bwalk.dm.com (Dimitri Vulis)

Well, I have read numerous papers written in Russian :) and:
Yes, Cyrillic letters are _occasionally_ used for subscripts. This
seems to be more common with physics and economics papers than with
pure math papers. I don't recall _ever_ seeing Cyrillic letters used
for variables, unless they happen to look like Greek letters. One
person I know always write \Gamma for group (gruppa) and \Pi for
semigroup (polugruppa). While I don't recall seeing Cyrillic variables,
it's not unusual to have a whole Russian word as a subscript, in which
case it's set in regular upright font:

          L       + L     = ....
           solnce    luna

The words s. and l. would be set in the same text font as the text outside
the formula.

There are only few things to add ...
From: Michael Downes <MJD@MATH.AMS.ORG>

The Russian letter Sha has occurred (very rarely) in mathematics in
papers published within the last few years at the AMS. It was used to
represent something called `Shafarevich group' if I remember correctly.

From: SZILLAT@iaas-berlin.d400.de

2) Nat"urlich gibt es auch kleinere Unterschiede. So schreibt man z.B. einige
Funktionen anders: tg statt tan.
Ein anderes Detail, das mir aufgefallen ist, ist der Satz umgebrochener Formeln
a = b +
 + c
Das Operationszeichen taucht auf beiden Zeilen auf.
================================================================================
Date: Thu, 26 Aug 1993 12:20:13 -0700 (PDT)
From: dmitriy@imagen.com (Dmitriy N. Vasilev)
Subject: RE:      SUmmary: Cyrillic in math
In-reply-to: Mail from 'J%org Knappen <Joerg.Knappen@uni-mainz.de>' dated:
 Thu, 26 Aug 1993 16:22:00 +0200
To: Joerg.Knappen@uni-mainz.de

>There are only few things to add ...
>From: Michael Downes <MJD@MATH.AMS.ORG>
>
>The Russian letter Sha has occurred (very rarely) in mathematics in
>papers published within the last few years at the AMS. It was used to
>represent something called `Shafarevich group' if I remember correctly.
                             =================
Well known not only as matematician, but also as ultra-nationalist.

Dm.
-- 
Dm. Vasilev     |   "Free cheese can be found only in a mouse trap"
dmitriy@aqm.com |   <disclaimer.std> : QMS may not agree
================================================================================