<p>In this work, we introduce the new notion of bi-parametric parabolic potentials in the framework of the Dunkl-Fourier transform which extends the classical bi-parametric potentials (for <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(k=0\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>k</mi> <mo>=</mo> <mn>0</mn> </mrow> </math></EquationSource> </InlineEquation>). Namely, we define the families of operators <Equation ID="Equ20"> <EquationSource Format="TEX">\(H^{k}_{\alpha ,\beta }:=\left( \dfrac{\partial }{\partial t}+(-\triangle _k)^{\frac{\beta }{2}}\right) ^{-\frac{\alpha }{\beta }}\,\,\,\,\hbox {and}\,\,\,\, \mathcal{H}^{k}_{\alpha ,\beta }:=\left( I+\dfrac{\partial }{\partial t}+(-\triangle _k)^{\frac{\beta }{2}}\right) ^{-\frac{\alpha }{\beta }}\,\,\,(\alpha ,\,\beta &gt;0),\)</EquationSource> <EquationSource Format="MATHML"><math display="block"> <mrow> <msubsup> <mi>H</mi> <mrow> <mi>α</mi> <mo>,</mo> <mi>β</mi> </mrow> <mi>k</mi> </msubsup> <mo>:</mo> <mo>=</mo> <msup> <mfenced close=")" open="("> <mstyle displaystyle="true" scriptlevel="0"> <mfrac> <mi>∂</mi> <mrow> <mi>∂</mi> <mi>t</mi> </mrow> </mfrac> </mstyle> <mo>+</mo> <msup> <mrow> <mo stretchy="false">(</mo> <mo>-</mo> <msub> <mi>▵</mi> <mi>k</mi> </msub> <mo stretchy="false">)</mo> </mrow> <mfrac> <mi>β</mi> <mn>2</mn> </mfrac> </msup> </mfenced> <mrow> <mo>-</mo> <mfrac> <mi>α</mi> <mi>β</mi> </mfrac> </mrow> </msup> <mspace width="0.166667em" /> <mspace width="0.166667em" /> <mspace width="0.166667em" /> <mspace width="0.166667em" /> <mtext>and</mtext> <mspace width="0.166667em" /> <mspace width="0.166667em" /> <mspace width="0.166667em" /> <mspace width="0.166667em" /> <msubsup> <mrow> <mi mathvariant="script">H</mi> </mrow> <mrow> <mi>α</mi> <mo>,</mo> <mi>β</mi> </mrow> <mi>k</mi> </msubsup> <mo>:</mo> <mo>=</mo> <msup> <mfenced close=")" open="("> <mi>I</mi> <mo>+</mo> <mstyle displaystyle="true" scriptlevel="0"> <mfrac> <mi>∂</mi> <mrow> <mi>∂</mi> <mi>t</mi> </mrow> </mfrac> </mstyle> <mo>+</mo> <msup> <mrow> <mo stretchy="false">(</mo> <mo>-</mo> <msub> <mi>▵</mi> <mi>k</mi> </msub> <mo stretchy="false">)</mo> </mrow> <mfrac> <mi>β</mi> <mn>2</mn> </mfrac> </msup> </mfenced> <mrow> <mo>-</mo> <mfrac> <mi>α</mi> <mi>β</mi> </mfrac> </mrow> </msup> <mspace width="0.166667em" /> <mspace width="0.166667em" /> <mspace width="0.166667em" /> <mrow> <mo stretchy="false">(</mo> <mi>α</mi> <mo>,</mo> <mspace width="0.166667em" /> <mi>β</mi> <mo>&gt;</mo> <mn>0</mn> <mo stretchy="false">)</mo> </mrow> <mo>,</mo> </mrow> </math></EquationSource> </Equation>where <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(\triangle _k\)</EquationSource> <EquationSource Format="MATHML"><math> <msub> <mi>▵</mi> <mi>k</mi> </msub> </math></EquationSource> </InlineEquation> is the Laplace-Dunkl differential operator and <i>I</i> is the identity operator. Also, some properties of these parabolic potentials in the special weighted <InlineEquation ID="IEq3"> <EquationSource Format="TEX">\(L^p_{k,0}(I\!\!R^d\times I\!\!R)\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <msubsup> <mi>L</mi> <mrow> <mi>k</mi> <mo>,</mo> <mn>0</mn> </mrow> <mi>p</mi> </msubsup> <mrow> <mo stretchy="false">(</mo> <mi>I</mi> <mspace width="-0.166667em" /> <mspace width="-0.166667em" /> <msup> <mi>R</mi> <mi>d</mi> </msup> <mo>×</mo> <mi>I</mi> <mspace width="-0.166667em" /> <mspace width="-0.166667em" /> <mi>R</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </math></EquationSource> </InlineEquation>-spaces are established.</p>

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Bi-parametric parabolic potentials in the Dunkl-Fourier setting

  • Samir Kallel

摘要

In this work, we introduce the new notion of bi-parametric parabolic potentials in the framework of the Dunkl-Fourier transform which extends the classical bi-parametric potentials (for \(k=0\) k = 0 ). Namely, we define the families of operators \(H^{k}_{\alpha ,\beta }:=\left( \dfrac{\partial }{\partial t}+(-\triangle _k)^{\frac{\beta }{2}}\right) ^{-\frac{\alpha }{\beta }}\,\,\,\,\hbox {and}\,\,\,\, \mathcal{H}^{k}_{\alpha ,\beta }:=\left( I+\dfrac{\partial }{\partial t}+(-\triangle _k)^{\frac{\beta }{2}}\right) ^{-\frac{\alpha }{\beta }}\,\,\,(\alpha ,\,\beta >0),\) H α , β k : = t + ( - k ) β 2 - α β and H α , β k : = I + t + ( - k ) β 2 - α β ( α , β > 0 ) , where \(\triangle _k\) k is the Laplace-Dunkl differential operator and I is the identity operator. Also, some properties of these parabolic potentials in the special weighted \(L^p_{k,0}(I\!\!R^d\times I\!\!R)\) L k , 0 p ( I R d × I R ) -spaces are established.