IJPAM: Volume 64, No. 1 (2010)
NEARMEDIA AND THEIR REPRESENTATIONS
Yotsanan Meemark
, Ekkasit Sangvisut
Department of Mathematics
Faculty of Science
Chulalongkorn University
Bangkok, 10330, THAILAND
e-mail: yotsanan.m@chula.ac.th
e-mail: perfectackle@hotmail.com



Faculty of Science
Chulalongkorn University
Bangkok, 10330, THAILAND


Abstract.Let be a nonempty set and
a nonempty set of functions on
. Elements of
are called states and elements of
are called token. A token system
is called a medium if it satisfies:
- [
]
- for any two distinct states
and
in
, there is a concise message transforming
into
, and
- [
]
- a message which is closed for some state is vacuous.

Received: September 18, 2009
AMS Subject Classification: 05C62, 68R10
Key Words and Phrases: media, nearmedia, token systems, graded families
Source: International Journal of Pure and Applied Mathematics
ISSN: 1311-8080
Year: 2010
Volume: 64
Issue: 1