Realms of mathematics: elliptic, hyperbolic, parabolic, sub-elliptic

DOI10.1007/BF03023957zbMath0638.00045MaRDI QIDQ1099141

Robert S. Strichartz

Publication date: 1987

Published in: The Mathematical Intelligencer (Search for Journal in Brave)

zbMATH Keywords

classification of conic sectionselliptic realmhyperbolic realmsub- elliptic realm

Mathematics Subject Classification ID

Philosophy of mathematics (00A30)

Related Items (2)

From Strichartz Estimates to Differential Equations on Fractals ⋮ Harmonic analysis as spectral theory of Laplacians

Cites Work

• Sub-Riemannian geometry
• Hypoelliptic differential operators and nilpotent groups
• Hypoelliptic second order differential equations
• Intertwining operators for semisimple groups
• Estimates for the \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop \partial \limits^ - _b $\end{document} complex and analysis on the heisenberg group
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