Journal
ANNALS OF MATHEMATICS
Volume 177, Issue 1, Pages 383-393Publisher
Princeton Univ, Dept Mathematics
DOI: 10.4007/annals.2013.177.1.8
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Funding
- NSF [DMS-0904565]
- Division Of Mathematical Sciences
- Direct For Mathematical & Physical Scien [1205781] Funding Source: National Science Foundation
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In this paper we prove that the support of a random measure on the unit ball of a separable Hilbert space that satisfies the Ghirlanda-Guerra identities must be ultrametric with probability one. This implies the Parisi ultrametricity conjecture in mean-field spin glass models, such as the Sherrington-Kirkpatrick and mixed p-spin models, for which Gibbs measures are known to satisfy the Ghirlanda-Guerra identities in the thermodynamic limit.
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