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Expansions of geometries

Published online by Cambridge University Press:  12 March 2014

John T. Baldwin*
Affiliation:
Department of Mathematics, Statistics and Computer Science, M/C 249, University of Illinois at Chicago, 851 S. Morgan St., Chicago, Illinois 60607, USA, E-mail: [email protected]

Abstract

For n < ω, expand the structure (n, S, I, F) (with S the successor relation, I, F as the initial and final element) by forming graphs with edge probability nα for irrational α, with 0 < α < 1. The sentences in the expanded language, which have limit probability 1, form a complete and stable theory.

Type
Research Article
Copyright
Copyright © Association for Symbolic Logic 2003

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References

REFERENCES

[1] Aref'ev, Roman, Baldwin, J. T., and Mazzucco, M., δ-invariant amalgamation classes, this Journal, vol. 64 (1999), pp. 17431750.Google Scholar
[2] Baldwin, J. T., Near model completeness and 0-1-laws, Proceedings of the DIMACS workshop on logic and random structures: 1995 (Boppana, R. and Lynch, James, editors), American Mathematical Society, 1997, pp. 113.Google Scholar
[3] Baldwin, J. T., Rank and homogeneous structures, Tits buildings and the theory of groups, Würzburg, Sept 14–17 2000 (Tent, Katrin, editor), Cambridge University Press, 2002.Google Scholar
[4] Baldwin, J. T., Random expansions of geometries, Original version on web: www.uic.edu/~jbaldwin.Google Scholar
[5] Baldwin, J. T. and Shelah, S., Randomness and semigenericity, Transactions of the American Mathematical Society, vol. 349 (1997), pp. 13591376.CrossRefGoogle Scholar
[6] Baldwin, J. T. and Shelah, S., DOP and FCP in generic structures, this Journal, vol. 63 (1998), pp. 427439.Google Scholar
[7] Baldwin, J. T. and Shi, Niandong, Stable generic structures, Annals of Pure and Applied Logic, vol. 79 (1996), pp. 135.Google Scholar
[8] Bollobas, Béla, Extremal graph theory with emphasis on probabilistic methods, Conference Board of the Mathematical Sciences regional conference series, no. 62, American Mathematical Society, 1986.Google Scholar
[9] Hrushovski, E., Simplicity and the Lascar group, preprint.Google Scholar
[10] Hyttinen, T., Canonical finite diagrams and quantifier elimination, Mathematical Logic Quarterly, vol. 48 (2002), pp. 533554.Google Scholar
[11] Lynch, J., Almost sure theories, Annals of Pure and Applied Logic, vol. 18 (1980), pp. 91135.Google Scholar
[12] Lynch, J., Probabilities of sentences about very sparse random graphs, Random Structures and Algorithms, vol. 3 (1992), pp. 3353.Google Scholar
[13] Pourmahdian, M., Simple generic theories, Ph.D. thesis , Oxford University, 2000.Google Scholar
[14] Rosen, E., Shelah, S., and Weinstein, S., κ-universal finite graphs, Proceedings of the DIMACS workshop on logic and random structures: 1995 (Boppana, R. and Lynch, James, editors), American Mathematical Society, 1996, pp. 6577.Google Scholar
[15] Shelah, S., 0-1 laws, preprint 550, 200?Google Scholar
[16] Shelah, S., Zero-one laws with probability varying with decaying distance, Shelah 467, 200?Google Scholar
[17] Shelah, S. and Spencer, J., Zero-one laws for sparse random graphs, Journal of the American Mathematical Society, vol. 1 (1988), pp. 97115.Google Scholar
[18] Spencer, J., Counting extensions, Journal of Combinatorial Theory A, vol. 55 (1990), pp. 247255.Google Scholar
[19] Zil'ber, B. I., Uncountably categorical theories, Translations of the American Mathematical Society, American Mathematical Society, 1991.Google Scholar