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zbMath0541.35048MaRDI QIDQ3327025

Todor Gramchev, Peter R. Popivanov

Publication date: 1983

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

approximate solution strictly hyperbolic operator mixed problems propagation of singularities Gevrey singularities analytic wave front reflection of singularities analytic subelliptic pseudodifferential operators

Mathematics Subject Classification ID

Initial-boundary value problems for second-order hyperbolic equations (35L20) Shocks and singularities for hyperbolic equations (35L67) Analyticity in context of PDEs (35A20)

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