The method of ascent and \(\cos(\sqrt{A^2+B^2})\)

DOI10.1016/S0007-4497(00)01065-4zbMath0967.35007arXivmath/9909139MaRDI QIDQ1591580

Yakar Kannai

Publication date: 30 August 2001

Published in: Bulletin des Sciences Mathématiques (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/math/9909139

zbMATH Keywords

Klein-Gordon equationpropagator\(n\)-dimensional wave equationHadamard method of descentnon-commuting selfadjoint operators

Mathematics Subject Classification ID

Initial value problems for second-order hyperbolic equations (35L15) Other special methods applied to PDEs (35A25)

Related Items (3)

Huygens operators on product manifolds ⋮ Wave kernels for the Dirac, Euler operators and the harmonic oscillator ⋮ Wave kernels related to second-order operators.

Cites Work

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• On a unitary version of Suzuki's exponential product formula
• Analytic vectors
• Off diagonal short time asymptotics for fundamental solution of diffusion equation
• CONVERGENCE OF EXPONENTIAL PRODUCT FORMULAS FOR UNBOUNDED OPERATORS

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