【摘 要】
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Non-local equations cannot be treated using classical ODE theorems. Nev-ertheless, several new methods have been introduced in the non-local gluing scheme of ou
【机 构】
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Department of Mathematics and Statistics,Wuhan University,Wuhan 430072,China;Department of Mathemati
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Non-local equations cannot be treated using classical ODE theorems. Nev-ertheless, several new methods have been introduced in the non-local gluing scheme of our previous article; we survey and improve those, and present new applications as well. First, from the explicit symbol of the conformal fractional Laplacian, a variation of constants formula is obtained for fractional Hardy operators. We thus develop, in addition to a suitable extension in the spirit of Caffarelli–Silvestre, an equivalent for-mulation as an infinite system of second order constant coefficient ODEs. Classical ODE quantities like the Hamiltonian and Wrońskian may then be utilized. As applica-tions, we obtain a Frobenius theorem and establish new Poho?aev identities. We also give a detailed proof for the non-degeneracy of the fast-decay singular solution of the fractional Lane–Emden equation.
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