Zur Theorie der partiellen Differentialgleichungbegin{array}{*{20}c} {(1)} & {D(u) equiv Delta u + afrac{{partial u}}{{partial x}} + bfrac{{partial u}}{{partial y}} + cu = 0,} & {c< 0.} end{array}期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

*Zur Theorie der partiellen Differentialgleichungbegin{array}{{20}c} {(1)} & {D(u) equiv Delta u + afrac{{partial u}}{{partial x}} + bfrac{{partial u}}{{partial y}} + cu = 0,} & {c< 0.} end{array}**

Authors:	Leon Lichtenstein

Affiliation:	1. Charlottenburg

Abstract:

Keywords:
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