نتایج جستجو برای: positive solutions
تعداد نتایج: 979621 فیلتر نتایج به سال:
in this paper, we study the nehari manifold and its application on the following navier boundary valueproblem involving the p-biharmonic 0, on( ) 1 ( , ) , in , 2*2u uf x u u upu u p q where is a bounded domain in rn with smooth boundary . we prove that the problem has atleast two nontrivial nonnegtive solutions when the parameter belongs to a certain subset o...
in this paper we provide existence results for positive solution to dirichlet p(t)-laplacian boundary value problems. the sublinear and superlinear cases are considerd.
Let B be a real vector lattice and a Banach space under a semimonotonic norm. Suppose T is a linear operator on B which is positive and eventually compact, y is a positive vector, and A is a positive real. It is shown that (XI—TY1y is positive if, and only if, y is annihilated by the absolute value of any generalized eigenvector of T* associated with a strictly positive eigenvalue not less than...
this article is devoted to the study of existence and multiplicity of positive solutions to aclass of nonlinear fractional order multi-point boundary value problems of the type−dq0+u(t) = f(t, u(t)), 1 < q ≤ 2, 0 < t < 1,u(0) = 0, u(1) =m−2∑ i=1δiu(ηi),where dq0+ represents standard riemann-liouville fractional derivative, δi, ηi ∈ (0, 1) withm−2∑i=1δiηi q−1 < 1, and f : [0, 1] × [0, ∞) → [0, ∞...
determination of uranium in natural water and complex solutions using ion exchange chromatography: a combined procedure using ion exchange chromatography and uv-vis spectrophotometry techniques has been developed to measure uranum in natural water and complex solutions. after conditicing , one hundred milli liters of sample solutions have been passed through an ion exchange column,pachked with ...
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