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New group about Complex Adaptive Systems

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New group about Complex Adaptive Systems

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Hi,

Per Bak writes in his excellent book "How Nature works"
that chaos is not the same as complexity, and that
chaos theory cannot explain complexity. (although
some strange attractors are complex ) Ian Stewart
says in "Does God play Dice ?" : "The new companion
to chaos is called complexity theory".

After Chaos has been discovered by Smale, Ueda,
Ruelle, Takens, Lorenz and Roessler [2], the focus
now seems to be on complexity and complex adaptive
systems.

What is a complex adaptive system ?
David A. Meyer says in [3] that a system is complex,
when it is represented efficiently by different models at
different scales.

In order to understand complexity and complex systems,
it might be useful to use different models, approaches and
groups as well. So here is another group about complex
adaptive systems :

http://groups.yahoo.com/group/CAS-Group/

You are invited to join. As a start I've posted a small
article about the "Emergence of Complexity" in the Files
section.

Best regards,

Jochen Fromm

[1]
How Nature works,
Per Bak,
Springer-Verlag, 1996

[2]
The chaos avant-garde, Memories of the early days of chaos theory,
Abraham and Ueda (Eds.),
World Scientific, 2000

[3]
Towards the Global : Complexity, Topology and Chaos
in Modelling, Simulation and Computation,
David A. Meyer
chao-dyn/9710005

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<BODY bgColor=3D#ffffff>Hi, Per Bak writes in his excellent book =
"How=20
Nature works" that chaos is not the same as complexity, and =
that chaos=20
theory cannot explain complexity. (although some strange attractors =
are=20
complex ) Ian Stewart says in "Does God play Dice ?" : "The new=20
companion to chaos is called complexity theory". After Chaos =
has been=20
discovered by Smale, Ueda, Ruelle, Takens, Lorenz and Roessler [2], =
the=20
focus now seems to be on complexity and complex=20
adaptive systems. What is a complex adaptive system ? David =
A.=20
Meyer says in [3] that a system is complex, when it is represented=20
efficiently by different models at different scales. In order =
to=20
understand complexity and complex systems, it might be useful to use=20
different models, approaches and groups as well. So here is another =
group=20
about complex adaptive systems : <A=20
href=3D"http://groups.yahoo.com/group/CAS-Group/">http://groups.yahoo.com=
/group/CAS-Group/</A> You=20
are invited to join. As a start I've posted a small article about the =

"Emergence of Complexity" in the Files section. Best=20
regards, Jochen Fromm [1] How Nature works, Per=20
Bak, Springer-Verlag, 1996 [2] The chaos avant-garde, =
Memories of=20
the early days of chaos theory, Abraham and Ueda (Eds.), World =
Scientific,=20
2000 [3] Towards the Global : Complexity, Topology and =
Chaos in=20
Modelling, Simulation and Computation, David A.=20
Meyer chao-dyn/9710005 
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