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The spatiotemporal sculpturing of light beams with arbitrary phase and polarization topologies has garnered significant attention in recent years due to its potential to advance optical technologies and reveal novel physical phenomena.…

I recently demonstrated that the Earth is a mechanical oscillator in which springtide induced magnification of all-masses resonance forces tectonics. I here generalize this georesonator concept so to make it apply to any body, anywhere in…

General Physics · Physics 2010-02-09 M. Omerbashich

In this article we define a Poincare series on a subspace of a complex analytic germ, induced by a multi-index filtration on the ambient space. We compute this Poincare series for subspaces defined by principal ideals. For plane curve…

Algebraic Geometry · Mathematics 2009-06-24 Ann Lemahieu

We present an approach to fully characterize the polarization of general vector light beams. When attempting to generalize the notion of Stokes parameters to nonparaxial light beams in momentum space, we find that the Jones function that…

Optics · Physics 2019-12-17 Chun-Fang Li

Given a pair of planar curves, one can define its generalized area distance, a concept that generalizes the area distance of a single curve. In this paper, we show that the generalized area distance of a pair of planar curves is an improper…

Differential Geometry · Mathematics 2011-05-17 Marcos Craizer , Ralph C. Teixeira , Moacyr A. H. B. da Silva

In this work we present the foundations of generalized scalar-tensor theories arising from vector bundle constructions, and we study the kinematic, dynamical and cosmological consequences. In particular, over a pseudo-Riemannian space-time…

General Relativity and Quantum Cosmology · Physics 2021-09-15 Spyros Konitopoulos , Emmanuel N. Saridakis , P. C. Stavrinos , A. Triantafyllopoulos

We study higher form Proca equations on Einstein manifolds with boundary data along conformal infinity. We solve these Laplace-type boundary problems formally, and to all orders, by constructing an operator which projects arbitrary forms to…

Differential Geometry · Mathematics 2017-07-28 A. Rod Gover , Emanuele Latini , Andrew Waldron

Using gnomonic projection and Poincar\'e model, we first define the spherical projection body and hyperbolic projection body in spherical space $\mathbb{S}^n$ and hyperbolic space $\mathbb{H}^n$, then define the spherical Steiner…

Metric Geometry · Mathematics 2024-06-21 Y. Lin , Y. Wu

For the quadratic Poincar\'e gauge theory of gravity (PG) we consider the FLRW cosmologies using an isotropic Bianchi representation. Here the considered cosmologies are for the general case: all the even and odd parity terms of the…

General Relativity and Quantum Cosmology · Physics 2015-12-07 Fei-Hung Ho , Hsin Chen , James M. Nester , Hwei-Jang Yo

Vector vortex beams, featuring independent spatial modes in orthogonal polarization components, offer an increase in information density for emerging applications in both classical and quantum communication technology. Recent advances in…

A method to construct transition curves using a family of the quartic Bezier spiral is described. The transition curves discussed are S-shape and C-shape of contact, between two separated circles. A spiral is a curve of monotone increasing…

Graphics · Computer Science 2013-05-01 Azhar Ahmad , R. Gobithasan , Jamaluddin Md. Ali

A frame is a system of vectors $S$ in Hilbert space $\mathscr{H}$ with properties which allow one to write algorithms for the two operations, analysis and synthesis, relative to $S$, for all vectors in $\mathscr{H}$; expressed in…

Functional Analysis · Mathematics 2015-01-29 Palle Jorgensen , Feng Tian

The following work demonstrates the viability of Poincar\'e symmetry in a discrete universe. We develop the technology of the discrete principal Poincar\'e bundle to describe the pairing of (1) a hypercubic lattice `base manifold' labeled…

General Physics · Physics 2019-02-13 Alexander S. Glasser , Hong Qin

Polarimetric studies of pulsar radio emission traditionally concentrate on how the Stokes vector (I, Q, U, V) varies with pulse longitude, with special emphasis on the position angle (PA) swing of the linearly polarized component. The…

Solar and Stellar Astrophysics · Physics 2011-03-08 C. T. Y. Chung , A. Melatos

It is possible to construct representations of the Lorentz group using four-dimensional harmonic oscillators. This allows us to construct three-dimensional wave functions with the usual rotational symmetry for space-like coordinates and…

Mathematical Physics · Physics 2007-05-23 Y. S. Kim

We study generalization of median triangles on the plane with two complex parameters. By specialization of the parameters, we produce periodical motion of a triangle whose vertices trace each other on a common closed orbit.

Metric Geometry · Mathematics 2020-09-15 Hiroaki Nakamura , Hiroyuki Ogawa

A new model of relativistic massive particle with arbitrary spin (($m,s$)-particle) is suggested. Configuration space of the model is a product of Minkowski space and two-dimensional sphere, ${\cal M}^6 = {\Bbb R}^{3,1} \times S^2$. The…

High Energy Physics - Theory · Physics 2017-11-30 S. M. Kuzenko , S. L. Lyakhovich , A. Yu. Segal

We discuss several aspects of the geometry of vector fields in (Poincare'-Dulac) normal form. Our discussion relies substantially on Michel theory and aims at a constructive approach to simplify the analysis of normal forms via a splitting…

Mathematical Physics · Physics 2019-01-18 Giuseppe Gaeta

Starting from Joyce's generalised Kummer construction, we exhibit non-trivial families of $\mathrm{G}_2$-manifolds over the two dimensional sphere by resolving singularities with a twisted family of Eguchi-Hanson spaces. We establish that…

Geometric Topology · Mathematics 2025-03-21 Diarmuid Crowley , Sebastian Goette , Thorsten Hertl

The gravitomagnetic field generated by a rotating sphere is usually calculated from the ideal dipole model. However, for a sphere with a homogeneous mass density, this model is not generally valid. Trying to obtain a more accurate value of…

General Physics · Physics 2012-01-17 Jacob Biemond