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Weakly torsion free S-posets
Authors:Xingliang Liang  Valdis Laan  Yanfeng Luo  Roghaieh Khosravi
Institution:1. Department of Mathematics, Shaanxi University of Science and Technology, Xi’an, Shaanxi, P. R. China;2. School of Mathematics and Statistics, Lanzhou University, Lanzhou, Gansu, P. R. Chinalxl_119@126.com;4. Institute of Mathematics and Statistics, University of Tartu, Tartu, Estonia;5. School of Mathematics and Statistics, Lanzhou University, Lanzhou, Gansu, P. R. China;6. Department of Mathematics, Fasa University, Fasa, Iran
Abstract:
Keywords:S-poset  Principally weakly flat  torsion free  weakly torsion free
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