A BVP nonexistence proof using Green's Theorem

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Several recent papers investigate the boundary value problem ϕ′′(t)+λϕ(t)+ϕ(t)2=0,t≥0subject to ϕ(0)=1,ϕ(∞)=0,which arises in certain situations of boundary layer flow. Previous work on the problem established the existence of a λmin∈[1,2∕3] such that solutions exist for λ≥λmin. It has been conjectured that for λ<λmin no solution exists. We improve existing results by proving that for λ<λ1≈.96105 no solution to the boundary value problem exists. The proof employs a novel application of Green's Theorem and is applicable to other boundary value problems.

Original languageEnglish (US)
Pages (from-to)171-174
Number of pages4
JournalApplied Mathematics Letters
StatePublished - Jun 1 2017

All Science Journal Classification (ASJC) codes

  • Applied Mathematics


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