<p>In this work sufficient conditions on the order of the symbol are developed to ensure boundedness, compactness and r-nuclearity of pseudo-differential operators in <InlineEquation ID="IEq6"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11868_2025_700_Article_IEq2.gif" Format="GIF" Height="14" Rendition="HTML" Resolution="72" Type="Linedraw" Width="30" /> </InlineMediaObject> <EquationSource Format="TEX">\(\hbar \mathbb {Z}^n\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>ħ</mi> <msup> <mrow> <mi mathvariant="double-struck">Z</mi> </mrow> <mi>n</mi> </msup> </mrow> </math></EquationSource> </InlineEquation>. In addition, these conditions allow us to conclude growth estimates for the eigenvalues of some elliptic operators, in particular perturbed discrete Schrödinger operator.</p>

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\(L^p\) boundedness, r-nuclearity and approximation of pseudo-differential operators on \(\hbar \mathbb {Z}^n\)

  • Juan Pablo Lopez

摘要

In this work sufficient conditions on the order of the symbol are developed to ensure boundedness, compactness and r-nuclearity of pseudo-differential operators in \(\hbar \mathbb {Z}^n\) ħ Z n . In addition, these conditions allow us to conclude growth estimates for the eigenvalues of some elliptic operators, in particular perturbed discrete Schrödinger operator.