2 papers
math.DG2021
Bour's Theorem of Spacelike Surfaces in Minkowski 4--Space
Murat Babaarslan, Burcu Bektaş Demirci, Yasin Küçükarıkan
In this paper, we study on three kinds of spacelike helicoidal surfaces in Minkowski --space. First, we give an isometry between such helicoidal surfaces and rotational surfaces…
math.DG2019
Quasi--minimal surfaces of pseudo--Riemannian space forms with positive relative nullity
Burcu Bektaş Demirci, Nurettin Cenk Turgay
In this paper, we consider surfaces in 4--dimensional pseudo--Riemannian space--forms with index 2. First, we obtain some of geometrical properties of such surfaces considering the…