A counterexample to the \(L^ 2\) estimate \(\| XYu \|\leq C(\| X^ k u\|+ \| Y^ k u\|+ \| u\|)\)

DOI10.1007/BF01446286zbMath0835.47037MaRDI QIDQ1906506

Jarosław Wróblewski

Publication date: 1 February 1996

Published in: Mathematische Annalen (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/165396

zbMATH Keywords

\(L^ 2\) estimatepseudoconvex CR-structure

Mathematics Subject Classification ID

Spaces of measurable functions ((L^p)-spaces, Orlicz spaces, Köthe function spaces, Lorentz spaces, rearrangement invariant spaces, ideal spaces, etc.) (46E30) General theory of partial differential operators (47F05)

Cites Work

• Fundamental solutions for second order subelliptic operators
• Hypoelliptic differential operators and nilpotent groups
• Unnamed Item

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