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on (po-)torsion free and principally weakly (po-)flat s-posets
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نویسنده
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khosravi roghaieh ,liang xingliang
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منبع
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categories and general algebraic structures with applications - 2018 - دوره : 8 - شماره : 1 - صفحه:35 -49
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چکیده
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In this paper, we first consider (po-)torsion free and principally weakly (po-)flat s-posets, specifically we discuss when (po-)torsion freeness implies principal weak (po-)flatness. furthermore, we give a counterexample to show that theorem 3.22 of shi is incorrect. thereby we present a correct version of this theorem. finally, we characterize pomonoids over which all cyclic s-posets are weakly po-flat.
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کلیدواژه
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torsion free ,po-torsion free ,principally weakly flat ,pomonoid ,s-poset
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آدرس
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fasa university, department of mathematics, ایران, shaanxi university of science and technology, department of mathematics, china
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پست الکترونیکی
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lxl_119@126.com
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Authors
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