Functional calculi of second-order elliptic partial differential operators with bounded measurable coefficients

Xuan Thinh Duong, Alan McIntosh

    Research output: Contribution to journalArticlepeer-review

    19 Citations (Scopus)

    Abstract

    Consider a second-order elliptic partial differential operator L in divergence form with real, symmetric, bounded measurable coefficients, under Dirichlet or Neumann conditions on the boundary of a strongly Lipschitz domain Ω. Suppose that 1 < p < ∞ and μ > 0. Then L has a bounded H functional calculus in Lp(Ω), in the sense that ||f (L + cI)u||p ≤ C sup|argλ|<;μ | f (λ)| ||u||P for some constants c and C, and all bounded holomorphic functions f on the sector | arg λ| < μ. that contains the spectrum of L + cI. We prove this by showing that the operators f (L + cI) are Calderón-Zygmund singular integral operators.

    Original languageEnglish
    JournalJournal of Geometric Analysis
    Volume6
    Issue number2
    Publication statusPublished - 1996

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