AUTHOR=Kahraman Tanju TITLE=Null Bertrand partner D-curves on spacelike surfaces JOURNAL=Frontiers in Physics VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2025.1611559 DOI=10.3389/fphy.2025.1611559 ISSN=2296-424X ABSTRACT=In this paper, by using the Darboux frame of null curves, we define null Bertrand partner D-curves and present the relations between curvatures of these curves in Minkowski 3-space E13. In addition, we obtain some special results. Finally, by considering surface construction methods, we provide examples for null Bertrand partner D-curves in E13.