...

If identical abstracts appear in a paper of this book or in the Special Issue of Discrete Applied Mathematics ``General Theory of Information Transfer and Combinatorics'' references are made with the letter B and D, respectively

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... recently¹

J.C.Baez: Higher-Dimensional Algebra and Planck-Scale Physics, in: C.Callender, N.Huggett (eds.), Physics Meets Philosophy at the Planck Scale, Cambridge University Press (1999), in press. (I am quoting according to the manuscript version of 28th January 1999, here: 4.)

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... ...²

A.Ashtekar, K.Krasnov: Quantum Geometry and Black Holes, gr-qc 9804039 v2 (4/2/99), 4.

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... constraint).³

C.Rovelli: Loop Quantum Gravity, Living Reviews in Relativity, www.livingreviews.org. MPI Potsdam, 19.

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... networks.⁴

R.Penrose: Angular Momentum: An Approach to Combinatorial Space-Time, in: T.Bastin (ed.), Quantum Theory and Beyond, Cambridge University Press, 1970, 151-180.

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... numbers).⁵

C.Rovelli, L.Smolin: Spin Networks and Quantum Gravity, gr-qc 9505006 (4/5/95).

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... shown.⁶

L.H.Kaufmann: Knots and Physics, 2nd ed., World Scientific, Singapore etc., 19 93, 459sq.

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... holography.⁷

P.A.Zizzi: Holography, Quantum Geometry, and Quantum Information Th eory, Entropy 2 (2000) 39-69.

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... information.⁸

Ashtekar, Krasnov, op.cit., 14.

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... way.⁹

I am following here the terminology as given by Renate Loll, in: J.Baez (ed.), Knots and Quantum Gravity, Clarendon Press, Oxford, 1994, 6sq.

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... space.¹⁰

C.Rovelli: Strings, loops, and others: ... , op.cit., 8.

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... ansatz¹¹

This idea goes back to M.Atiyah: The geometry and physics of knots. Cambridge University Press, 1990.

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... foams.¹²

J.C.Baez: An Introduction to Spin Foam Models of BF Theory and Quantum Gravity, preprint: 20/5/99. Here: 1sq. par.

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... space-time.¹³

Ibid., 32-34.

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... automaton.¹⁴

S.Kauffman, L.Smolin: Combinatorial dynamics in quantum gravity, hep-th 9809161 v2 (22/09/98).

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... itself.¹⁵

Ibid., Lecture 7, 2.

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... complexity.¹⁶

Ibid.

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