نتایج جستجو برای: vector field
تعداد نتایج: 961926 فیلتر نتایج به سال:
In this paper, we introduce statistical cosymplectic manifolds and investigate some properties of their tensors. We define invariant and anti-invariant submanifolds and study invariant submanifolds with normal and tangent structure vector fields. We prove that an invariant submanifold of a statistical cosymplectic manifold with tangent structure vector field is a cosymplectic and minimal...
A time-like unit vector field is used to generalize Einstein's gravity. The resulting theory, called the Einstein-aether theory, consists of a minimal coupling between an aether field and gravity. Inspired by the Bopp-Podolsky electrodynamics, which is well-known for removing the singularity at the point charge, we generalized the Einstein-aether theory by adding such a higher order self-intera...
Die VFH ist ein vom Bundesministerium für Bildung und Forschung gefördertes Leitprojekt. Im Projekt arbeiten 11 Fachhochschulen und 2 Universitäten aus mehreren Bundesländern zusammen. Es wird multimediales Lernmaterial für den Einsatz in Online-Studiengängen erarbeitet. Der erste solche Studiengang (BSc Medieninformatik) ist seit dem WS 01/02 eingerichtet.
Atomic magnetometers have found widespread applications in precise measurement of the Earth’s magnetic field due to their high sensitivity. In these measurements, various methods have been utilized to compensate the Earth’s magnetic field in an unshielded environment. In this paper, we have proposed a method based on finding the minimum resonance frequency (corresponding to minimum magnetic fie...
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