We estimate the critical capacity of the zero-temperature Hopfield model by
using a novel and rigorous method. The probability of having a stable fixed
point is one when α≤0.113 for a large number of neurons. This result
is an advance on all rigorous results in the literature and the relationship
between the capacity α and retrieval errors obtained here for small
α coincides with replica calculation results.Comment: Latex 36 page macros:
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