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Monotone expansion
classification
🧮 math.CO
math.GR
keywords
familymonotoneactionconstructiondefinedessentiallyexpandersexpansion
read the original abstract
This work, following the outline set in [B2], presents an explicit construction of a family of monotone expanders. The family is essentially defined by the Mobius action of SL_2(R) on the real line. For the proof, we show a product-growth theorem for SL_2(R).
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