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The Potts spin glass is investigated in 6-{ε} spatial dimensions. A renormalization-group analysis predicts a fluctuation-driven first-order transition for 2<p<4, although a mean-field investigation predicts a second-order transition. The model exhibits a ``spinodal'' fixed point in the unstable region.
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Yadin Y. Goldschmidt (1985) studied this question.
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