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 Classification of cylindrical ruled surfaces satisfying $\bigtriangleup H = AH$ in a 3-Dimensional Minkowski Space Bull. Korean Math. Soc. 1996 Vol. 33, No. 1, 97-106 Seoung Dal Jung and Jin Suk Pak Cheju National University and Kyungpook National University Keywords : Cylindrical ruled surface, Mean curvature, Space-like and time-like ruled surface MSC numbers : 53A10, 53C50 Downloads: Full-text PDF