<p>In this paper we investigate constant angle surfaces in the Lorentzian product space <InlineEquation ID="IEq4"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="9_2025_2871_Article_IEq1.gif" Format="GIF" Height="20" Rendition="HTML" Resolution="72" Type="Linedraw" Width="73" /> </InlineMediaObject> <EquationSource Format="TEX">\(\mathbb {M}^2_1(\kappa )\times {\mathbb {R}}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <msubsup> <mrow> <mi mathvariant="double-struck">M</mi> </mrow> <mn>1</mn> <mn>2</mn> </msubsup> <mrow> <mo stretchy="false">(</mo> <mi>κ</mi> <mo stretchy="false">)</mo> </mrow> <mo>×</mo> <mi mathvariant="double-struck">R</mi> </mrow> </math></EquationSource> </InlineEquation> obtained by the product of a constant sectional curvature Lorentzian surface <InlineEquation ID="IEq5"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="9_2025_2871_Article_IEq5.gif" Format="GIF" Height="20" Rendition="HTML" Resolution="72" Type="Linedraw" Width="42" /> </InlineMediaObject> <EquationSource Format="TEX">\(\mathbb {M}^2_1(\kappa )\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <msubsup> <mrow> <mi mathvariant="double-struck">M</mi> </mrow> <mn>1</mn> <mn>2</mn> </msubsup> <mrow> <mo stretchy="false">(</mo> <mi>κ</mi> <mo stretchy="false">)</mo> </mrow> </mrow> </math></EquationSource> </InlineEquation> and a Riemannian real line. We provide a complete classification of such surfaces and we also explore geometric properties such as minimality and constancy of the mean curvature.</p>

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Constant Angle Surfaces in \(\mathbb {M}^2_1(\kappa )\times {\mathbb {R}}\)

  • Lorenzo Pellegrino

摘要

In this paper we investigate constant angle surfaces in the Lorentzian product space \(\mathbb {M}^2_1(\kappa )\times {\mathbb {R}}\) M 1 2 ( κ ) × R obtained by the product of a constant sectional curvature Lorentzian surface \(\mathbb {M}^2_1(\kappa )\) M 1 2 ( κ ) and a Riemannian real line. We provide a complete classification of such surfaces and we also explore geometric properties such as minimality and constancy of the mean curvature.