Bi-Local Field on Space-Like Surface

Local D = 4 Field Theory on κ – Deformed Minkowski Space ∗

We describe the local D=4 field theory on κ–deformed Minkowski space as nonlocal relativistic field theory on standard Minkowski space–time. For simplicity the case of κ-deformed scalar field φ with the interaction λφ is considered, and the κ–deformed interaction vertex is described. Supported by KBN grant 2P03B13012 On leave of absence from the Institute for Theoretical Physics, University of ...

Local electric field screening in bi-layer graphene devices

*Correspondence: Olga Kazakova, National Physical Laboratory, Quantum Detection, Hampton Road, Teddington TW11 0LW, London, UK e-mail: [email protected] We present experimental studies of both local and macroscopic electrical effects in uniform single(1LG) and bi-layer graphene (2LG) devices as well as in devices with non-uniform graphene coverage, under ambient conditions. DC transport m...

Local Surface Reconstruction of Objects in Space

The increasing number of objects orbiting our planet necessitates the creation of sensing systems designed to determine the surface structure of such objects. One of the key challenges facing computer vision systems used in space is the presence of specular surfaces on most man-made orbital objects. Such surfaces present a challenge to conventional vision systems due to specular reflections, wh...

The Dirichlet Space on the bi-disc

Umbilicity of (Space-Like) Submanifolds of Pseudo-Riemannian Space Forms

We study umbilic (space-like) submanifolds of pseudo-Riemannian space forms, then define totally semi-umbilic space-like submanifold of pseudo Euclidean space and relate this notion to umbilicity. Finally we give characterization of total semi-umbilicity for space-like submanifolds contained in pseudo sphere or pseudo hyperbolic space or the light cone.A pseudo-Riemannian submanifold M in (a...