Articles

• THE HIT PROBLEM OF FIVE VARIABLES IN THE DEGREE THIRTY

  Nguyen Sum, Le Xuan Mong

  79-99

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• SOME UNIQUENESS THEOREMS FOR HOLOMORPHIC CURVES ON ANNULUS SHARING HYPERSURFACES IN GENERAL POSITION

  Ha Tran Phuong, Inthavichit Padaphet, Le Quang Ninh

  100-111

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• A NOTE ON CENTRAL IDEMPOTENTS IN GROUP RING OF SYMMETRIC GROUP OVER Zn

  Anuradha Sabharwal, Pooja Yadav, R. K. Sharma

  112-118

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• ALL MAXIMAL UNIT-REGULAR SIBMONOIDS OF RELHYP((2),(2))

  Pornpimol Kunama, Sorasak Leeratanavalee

  119-137

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• FORWARD PROBLEM FOR POLLUTION CONTROL BASED ON STREETER-PHELPS EQUATION

  Tran Thi Nang, Nguyen Dinh Huy, Bui Ta Long

  138-154

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