Maximum and antimaximum principles for a second order differential operator with variable coefficients of indefinite sign
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摘要
New criteria for the existence of a maximum or antimaximum principle of a general second order operator with periodic conditions, as well as conditions for nonresonance, are provided and compared with the related literature.
论文关键词：Maximum principle,Antimaximum principle,Nonresonance condition
论文评审过程：Available online 22 February 2011.
论文官网地址：https://doi.org/10.1016/j.amc.2011.02.053
