TY  - JOUR
T1  - Dual Darboux Frame of a Spacelike Ruled Surface and Darboux Approach to Mannheim Offsets of Spacelike Ruled Surfaces
TT  - Natural Science and Discovery
AU  - Onder, Mehmet
AU  - Ugurlu, H. Huseyin
PY  - 2015
DA  - March
DO  - 10.20863/nsd.54091
JF  - Natural Science and Discovery
JO  - Nat Sci Discov
PB  - Zafer AKAN
WT  - DergiPark
SN  - 2149-6307
SP  - 29
EP  - 41
VL  - 1
IS  - 1
LA  - en
AB  - In this paper, we define dual Darboux frame of a spacelike ruled surface. Then, we study Mannheim offsets of spacelike ruled surfaces in dual Lorentzian space by considering the E. Study Mapping. We represent spacelike ruled surfaces by dual Lorentzian unit spherical curves and define Mannheim offsets of the spacelike ruled surfaces by means of dual Darboux frame. We obtain relationships between the invariants of Mannheim spacelike offset surfaces and offset angle, offset distance. Moreover, we obtain some conditions for Mannheim offsets of spacelike ruled surfaces to be developable.
KW  - Spacelike ruled surface; Mannheim offset; dual Darboux frame
CR  - Abdel-All N. H., Abdel-Baky R. A., Hamdoon F. M., Ruled surfaces with timelike rulings, App. Math. Comp., 147 (2004) 241–253.
CR  - Blaschke, W., Differential Geometrie and Geometrischke Grundlagen ven Einsteins Relativitasttheorie Dover, New York, (1945). 3.
CR  - Dimentberg, F. M., The Screw Calculus and its Applications in Mechanics, (Izdat. Nauka, Moscow, USSR, 1965) English translation: AD680993, Clearinghouse for Federal and Scientific Technical Information. 4. Hacısalihoğlu.
CR  - Kuaterniyonlar Teorisi, Gazi Üniversitesi Fen-Edb. Fakültesi, (1983).
CR  - Hoschek, J., Lasser, D., Fundamentals of computer aided geometric design, Wellesley, MA:AK Peters, (1993).
CR  - Karger, A., Novak, J., Space Kinematics and Lie Groups, STNL Publishers of Technical Lit., Prague, Czechoslovakia (1978).
CR  - Küçük, A., Gürsoy O., On the invariants of Bertrand trajectory surface offsets, App. Math. Comp., 151 (2004) 763-773.
CR  - O’Neill, B., Semi-Riemannian Geometry with Applications to Relativity, Academic Press, London, (1983).
CR  - Orbay, K., Kasap, E., Aydemir, I, Mannheim Offsets of Ruled Surfaces, Math. Problems in Eng., Vol. 2009, Article ID 160917.
CR  - Önder, M., Uğurlu, H.H., On the Developable Mannheim offsets of timelike ruled surfaces, Proc. Natl. Acad. Sci., India, Sect. A Phys. Sci. 84(4) (2014) 541-548. Önder,
CR  - Characterizations for Mannheim Offsets of the Ruled Surfaces, Bol. Soc. Paran. Mat. 34(1) (2016) 85–98.
CR  - Önder, M., Uğurlu, H.H., On the Invariants of Mannheim Offsets of Timelike Ruled Surfaces with Spacelike Rulings, Asian-European Journal of Math. 8(1) (2015) 1550009. 13.
CR  - Önder, M., Uğurlu, H.H., Dual Darboux Frame of a Timelike Ruled Surface and Darboux Approach to Mannheim Offsets of Timelike Ruled Surfaces, Proc. Natl. Acad. Sci., India, Sect. A Phys. Sci. (2013) 83:163-169.
CR  - Önder, M., Uğurlu, H.H., On the Developable Mannheim offsets of spacelike ruled surfaces, arXiv:0906.4660v5 [math.DG].
CR  - Papaioannou, S.G., Kiritsis, D., An application of Bertrand curves and surfaces to CAD/CAM, Comp. Aided Design, 17(8) (1985) 348-352.
CR  - Pottmann, H., Lü, W., Ravani, B., Rational ruled surfaces and their offsets, Graph. Models and Image Process, 58(6) (1996) 544-552.
CR  - Ravani, B., Ku, T. S., Bertrand Offsets of ruled and developable surfaces, Comp. Aided Geom. Design, 23 (2) (1991) 145-152.
CR  - Uğurlu, H.H., Çalışkan, A,. The Study Mapping for Directed 18.
CR  - Spacelike and Timelike Lines in Minkowski 3-Space IR, 3 1
CR  - Math. and Comp. Appl., 1(2) (1996) 142-148.
CR  - Uğurlu, H.H., Önder, M., On Frenet Frames and Frenet Invariants of Skew Spacelike Ruled Surfaces in Minkowski 3-space, VII. Geometry Symposium, 07-10 July 2009, Kırşehir, Turkey.
CR  - Uğurlu, H.H., The relations among instantaneous velocities of trihedrons depending on a spacelike ruled surface, Hadronic Journal, 22 (1999) 145-155.
CR  - Veldkamp, G.R., On the use of dual numbers, vectors and matrices in instantaneous spatial kinematics, Mech. Mach. Theory, II (1976) 141-156.
UR  - https://doi.org/10.20863/nsd.54091
L1  - https://dergipark.org.tr/tr/download/article-file/185231
ER  -