A NON-BALLISTIC LAW OF LARGE NUMBERS FOR RANDOM WALKS IN I.I.D. RANDOM ENVIRONMENT
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We prove that random walks in i.i.d. random environments which oscillate in a given direction have velocity zero with respect to that direction. This complements existing results thus giving a general law of large numbers under the only assumption of a certain zero-one law, which is known to hold if the dimension is two.
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