Comparison theorems for non-linear vector differential equations
نویسندگان
چکیده
منابع مشابه
Differentiability Theorems for Non - Linear Elliptic Equations
^ C O and Z)0(x) stand for ——^ ^ " ^ T » (bx ) . . . (o* ) y and Dz stands for all the derivatives Dz for i = \, . . . , N and 0 < |a| < mt (of course if |a | = 0 , Dz = z). Equations of the form (1 ) were discussed in my paper "Partial regularity theorems for elliptic systems" which appeared in the January 1968 issue of the Journal of Mathematics and Mechanics [17] where it was assumed that th...
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An identity of the Picone type for fourth-order half-linear ordinary differential operators of the form lα[x] ≡ (pφ(x′′))′′ − (rφ(x′))′ + qφ(x) and Lα[y] ≡ (Pφ(y′′))′′ − (Rφ(y′))′ +Qφ(y). where φ(u) := |u|α−1u, α > 0, u ∈ R, and p, q, r, P,Q and R are continuous functions on a given interval I is derived and then Sturmian comparison theory for the corresponding fourth-order equations lα[x] = 0 ...
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ژورنال
عنوان ژورنال: Journal of Differential Equations
سال: 1969
ISSN: 0022-0396
DOI: 10.1016/0022-0396(69)90047-3