Blar i forfatter Artikler, rapporter og annet (matematikk og statistikk) "Kessy, Johnson Allen"

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    • Symmetry gaps for higher order ordinary differential equations 

      Kessy, Johnson Allen; The, Dennis (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-04)
      The maximal contact symmetry dimensions for scalar ODEs of order ≥ 4 and vector ODEs of order ≥ 3 are well known. Using a Cartan-geometric approach, we determine for these ODEs the next largest realizable (submaximal) symmetry dimension. Moreover, finer curvature-constrained submaximal symmetry dimensions are also classified.

    • Symmetry gaps for higher order ordinary differential equations 

      The, Dennis; Kessy, Johnson Allen (Journal article; Tidsskriftartikkel, 2021)
      The maximal contact symmetry dimensions for scalar ODEs of order ≥4 and vector ODEs of order ≥3 are well known. Using a Cartan-geometric approach, we determine for these ODE the next largest realizable (submaximal) symmetry dimension. Moreover, finer curvature-constrained submaximal symmetry dimensions are also classified.