From: Ronnie Brown <r.brown@bangor.ac.uk>
To: categories@mta.ca
Subject: Re: Category Theory from RFC Walters' book
Date: Thu, 02 Nov 2000 10:30:15 +0000 [thread overview]
Message-ID: <3A014237.B31FE524@bangor.ac.uk> (raw)
In-Reply-To: <200011011244.eA1CiKt07396@nmh.informatik.uni-bremen.de>
It could be useful to mention the paper
29 #1239 Higgins, Philip J., Algebras with a scheme of operators. Math. Nachr. 27
1963 115--132. (Reviewer: A. Heller) 18.10
which discusses partial algebras at an early date.
Ronnie Brown
Till Mossakowski wrote:
> >It is folklore that the method of generators and relations works for any
> >essentially algebraic theory with finitary operators, as well as for some
> >more general ones. "Algebraic" means defined by operators and equational
> >laws (could be many-sorted); "essentially" means that the operators may be
> >partial, with their domains of definition described by finite sets of
> >equations.
>
> >I wish I knew of an introductory text describing the techniques at this
> >level of generality, but unfortunately I'm not aware of any - maybe somebody
> >can suggest one. Manes's book "Algebraic Theories" is quite good on the
> >algebraic case.
>
> @BOOK{Reichel,
> AUTHOR = "Horst Reichel",
> TITLE ="Initial Computability, Algebraic Specifications and Partial Algebras",
> PUBLISHER = "Oxford Science Publications",
> YEAR = 1987}
>
> contains an elementary introduction to essentially algebraic theories;
> also, the theory of categories is used as an example.
>
> Till Mossakowski
>
> -----------------------------------------------------------------------------
> Till Mossakowski Phone +49-421-218-4683, monday: +49-4252-1859
> Dept. of Computer Science Fax +49-421-218-3054
> University of Bremen till@informatik.uni-bremen.de
> P.O.Box 330440, D-28334 Bremen http://www.informatik.uni-bremen.de/~till
> -----------------------------------------------------------------------------
--
Prof R. Brown,
School of Informatics, Mathematics Division,
University of Wales, Bangor
Dean St., Bangor,
Gwynedd LL57 1UT, United Kingdom
Tel. direct:+44 1248 382474|office: 382475
fax: +44 1248 361429
World Wide Web:
home page: http://www.bangor.ac.uk/~mas010/
(Links to survey articles:
Higher dimensional group theory
Groupoids and crossed objects in algebraic topology)
Symbolic Sculpture and Mathematics:
http://www.cpm.sees.bangor.ac.uk/sculmath/
Centre for the Popularisation of Mathematics
http://www.cpm.sees.bangor.ac.uk/
Raising Public Awareness of Mathematics
http://www.cpm.sees.bangor.ac.uk/rpamath/
next parent reply other threads:[~2000-11-02 10:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200011011244.eA1CiKt07396@nmh.informatik.uni-bremen.de>
2000-11-02 10:30 ` Ronnie Brown [this message]
2000-11-01 11:05 puite
[not found] <F112R3XgbPhRaUMNGCX000043d1@hotmail.com>
2000-11-01 10:04 ` Steve Vickers
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