oleinik 中文意思是什麼
oleinik
解釋
奧列伊尼克-
The study of degenerate elliptic equations can be traced back to 1910 ' s, first appeared in picone ' s thesis. after half century ' s development in this field, o. a. oleinik and e. v. radkeic, published their classic monograph second order equations with nonnegative characteristic form in 1971
而這類方程的特徵形式在所研究的區域上是變號的，即在有的子區域上非負，而在其餘的子區域上非正。
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