The construction of a function f satisfying \(\Delta f\in L^ 1\) and \(\partial _{ij}f\not\in L^ 1\)
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Publication:1075500
DOI10.1007/BF01196361zbMath0592.35032OpenAlexW2015927948MaRDI QIDQ1075500
Publication date: 1987
Published in: Archiv der Mathematik (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.1007/bf01196361
Smoothness and regularity of solutions to PDEs (35B65) Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation (35J05)
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