caa a22 4500 445813245 CHVBK 20180317145218.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s00022-011-0074-2 doi (NATIONALLICENCE)springer-10.1007/s00022-011-0074-2 Helicoidal surfaces in the three-dimensional Lorentz-Minkowski space satisfying Δ II r i [Elektronische Daten] λ i r i [Ch. Baba-Hamed, M. Bekkar] In this paper, we study helicoidal surfaces without parabolic points in the 3-dimensional Lorentz-Minkowski space under the condition Δ II r i =λ i r i where Δ II is the Laplace operator with respect to the second fundamental form and λ i is a real number. We prove that there are no helicoidal surfaces without parabolic points in the 3-dimensional Lorentz-Minkowski space satisfying that condition. Springer Basel AG, 2011 Lorentz-Minkowski space nationallicence Helicoidal surfaces nationallicence Laplace operator nationallicence Baba-Hamed Ch Department of Mathematics, Faculty of Sciences, University of Oran, El Menouar, P.O. Box 1524, Oran, Algeria aut Bekkar M. Department of Mathematics, Faculty of Sciences, University of Oran, El Menouar, P.O. Box 1524, Oran, Algeria aut Journal of Geometry SP Birkhäuser Verlag Basel 100/1-2(2011-04-01), 1-10 0047-2468 100:1-2<1 2011 100 22 https://doi.org/10.1007/s00022-011-0074-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00022-011-0074-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Baba-Hamed Ch Department of Mathematics, Faculty of Sciences, University of Oran, El Menouar, P.O. Box 1524, Oran, Algeria aut NATIONALLICENCE 700 1- Bekkar M. Department of Mathematics, Faculty of Sciences, University of Oran, El Menouar, P.O. Box 1524, Oran, Algeria aut NATIONALLICENCE 773 0- Journal of Geometry SP Birkhäuser Verlag Basel 100/1-2(2011-04-01), 1-10 0047-2468 100:1-2<1 2011 100 22 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer