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- W3197194657 abstract "Abstract In this paper, we discuss the existence of positive solutions to a discrete third-order three-point boundary value problem. Here, the weight function <m:math xmlns:m=http://www.w3.org/1998/Math/MathML> <m:mi>a</m:mi> <m:mrow> <m:mo>(</m:mo> <m:mrow> <m:mi>t</m:mi> </m:mrow> <m:mo>)</m:mo> </m:mrow> </m:math> aleft(t) and the Green function <m:math xmlns:m=http://www.w3.org/1998/Math/MathML> <m:mi>G</m:mi> <m:mrow> <m:mo>(</m:mo> <m:mrow> <m:mi>t</m:mi> <m:mo>,</m:mo> <m:mi>s</m:mi> </m:mrow> <m:mo>)</m:mo> </m:mrow> </m:math> Gleft(t,s) both change their sign. Despite this, we also obtain several existence results of positive solutions by using the Guo-Krasnoselskii’s fixed-point theorem in a cone." @default.
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- W3197194657 date "2021-01-01" @default.
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- W3197194657 title "Positive solutions of a discrete nonlinear third-order three-point eigenvalue problem with sign-changing Green's function" @default.
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- W3197194657 doi "https://doi.org/10.1515/math-2021-0085" @default.
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