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Found 5 Documents (Results 1–3)

St. Petersbg. Math. J. 9, No. 6, 1111-1128 (1998); translation from Algebra Anal. 9, No. 6, 109-131 (1997).
MSC:  35K65 35B45 35B50
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St. Petersbg. Math. J. 9, No. 2, 199-217 (1998); translation from Algebra Anal. 9, No. 2, 30-50 (1997).
MSC:  35K60 35B45
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