Generalization of Piecewise-Koszul Algebras
xia qi~1 lu diming~2 1 corresponding author.department of mathematics; zhejiang university; hangzhou 310027; china. 2 department of mathematics; zhejiang university; hangzhou 310027; china.
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Comparison Principle for Very Weak Solutions to A-Harmonic Equation
shi mingyu~1 gao hongya~2 song yingqing~3 1 college of mathematics and econometrics; hunan university; changsha 410082; china. 2 college of mathematics and computer science; hebei university; baoding 071002; hebei; china; hebei provincial center of mathematics; shijiazhuang 050016; china. 3 depatment of mathematics; hunan city university; yiyang 413000; hunan; china.
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