ON THE DEGENERATE MAXIMAL SURFACES IN ��<sup>4</sup>

Abe, K. and Magid, M., Indefinite Rigidity of Complex Submanifold and Maximal Surfaces, Mathematical Proceedings of Cambridge Philosophical Society 106 (1989), no. 3, 481-494 https://doi.org/10.1017/S0305004100068225
Akutagawa, K. and Nishigawa, S., The Gauss Map and Spacelike Surfaces with Prescribed Mean Curvature in Minkowski 3-Space, Tohoku Mathematical Journal 42 (1990), no. 1, 67-82. https://doi.org/10.2748/tmj/1178227694
Asperti, Antonio C. and Vilhena, Jose Antonio M., Spacelike Surfaces in L⁴ with Degenerate Gauss Map, Results in Mathematics 60 (2011), no. 1, 185-211. https://doi.org/10.1007/s00025-011-0146-5
Graves, L., Codimension One Isometric Immersions between Lorentz Spaces, Ph.D. Thesis, Brown University, 1977.
Hong, SK., On the Indefinite Quadric ℚ^n-2₊, East Asian Math. Journal 32 (2016), no. 1, 93-100. https://doi.org/10.7858/eamj.2016.010
Hong, SK., On the Degenerate Maximal Spacelike Surfaces, East Asian Math. Journal 35 (2019), no. 1, 109-115. https://doi.org/10.7858/EAMJ.2019.014
Kobayasi, O., Maximal Surfaces in the 3-dimensional Minkowski Space L³, Tokyo J. Math. 6 (1983), 297-309.
Milnor, T. K., Harmonic Maps and Classical Surface Theory in Minkowski 3-space, Trans. of AMS 280 (1983), 161-185. https://doi.org/10.1090/S0002-9947-1983-0712254-7
O'Neil, B., Semi-Riemannian Geometry, Academic Press, New York, 1983.
Osserman, R., A Survey of Minimal Surfaces, Dover, New York, 1986

ON THE DEGENERATE MAXIMAL SURFACES IN ��4