Partial differential equations on time scales

被引:52
|
作者
Ahlbrandt, CD [1 ]
Morian, C
机构
[1] Univ Missouri, Dept Math, Columbia, MO 65211 USA
[2] Lincoln Univ, Dept Agr Nat Sci & Math, Jefferson City, MO 65102 USA
关键词
time scales; measure chains; delta derivatives; elliptic partial differential equations; Euler-Lagrange equation; Picone identity; Sturm-Picone comparison theorem;
D O I
10.1016/S0377-0427(01)00434-4
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Discrete and continuous formulations of partial differential operators are unified by a time scale formulation of partial differential operators. Results include an Euler-Lagrange equation for double integral variational problems on time scales and a Picone identity which implies a Sturm-Picone comparison theorem for second-order elliptic PDEs on time scales. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
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页码:35 / 55
页数:21
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