Review ArticleOpen accessIn the abstractAbout the Space RobotsRelly Victoria Virgil PetrescuToday, robots help us more than ever in all major operations, everyday life and become a daily reality, making it an integral part of major human projects. If they are still the majority in the machine industry, they will soon become as many in other industries and at the same time will grow strongly for human support in conquering extraterrestrial … …Journal of Mechatronics and Robotics, Vol. 3, Issue 1 · 25 May 2019 · 6,962 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Geometric Generalization of the Planar Gale-Nikaidô TheoremE. Cabral BalreiraThe Gale-Nikaidô Theorem establishes global injectivity of maps defined over rectangular regions provided the Jacobian matrix is a P-matrix. We provide a purely geometric generalization of this result in the plane by showing that if the image of each edge of the rectangular domain is realized as a graph of a function over the appropriate axis, then the map is … …Journal of Mathematics and Statistics, Vol. 14, Issue 1 · 30 May 2018 · 7,557 accessesView PDFCite