Results 71 to 80 of about 4,519,740 (175)

Acceptance Mode Dependent Transfer of Non-Common Path Aberrations to Null Leakage in Mid-Infrared Nulling Interferometry

open access: yesPhotonics
Mid-infrared nulling interferometry enables thermal characterization of warm exoplanets, but non-common path aberrations (NCPA) degrade starlight suppression by creating complex amplitude mismatch between interferometer arms.
Yangdi Hu   +5 more
doaj   +1 more source

Weakly cyclic Ricci symmetric manifolds admitting semi-symmetric metric connection

open access: yes, 2011
In this paper the definition of weakly cyclic Ricci symmetric manifolds admitting semi-symmetric metric connection is given and its applications to the general relativity and cosmology are investigated.
Das, Lovejoy S. K.   +2 more
core   +1 more source

Fixed Point Theorems for Occasionally Weakly Compatible Maps in G-Metric Space [PDF]

open access: yes, 2013
In this paper, we prove common fixed point theorems for a pair of occasionally weakly compatible maps in Symmetric G-metric space.
Manro, Saurabh
core  

On weakly cyclic Z symmetric manifolds

open access: yes, 2015
The object of the present paper is to study weakly cyclic Z symmetric manifolds. Some geometric properties have been studied. We obtain a sufficient condition for a weakly cyclic Z symmetric manifold to be a quasi Einstein manifold.
C. A. Mantica, Y. J. Suh, U. C. De
core   +1 more source

Trapped mode resonances in metalo-dielectric structures with electric asymmetry

open access: yes
The excitation of an anti-symmetric trapped mode on a symmetric resonator structure is demonstrated through numerical simulation. The electrical symmetry is broken by using different dielectric substrates leading to trapped modes being excited onto a ...
Rotaru, Mihai, Sykulski, Jan
core   +1 more source

Dark Matter searches with photons at the LHC

open access: yesJournal of High Energy Physics
We unveil blind spot regions in dark matter (DM) direct detection (DMDD), for weakly interacting massive particles with a mass around a few hundred GeV that may reveal interesting photon signals at the LHC.
Subhojit Roy, Carlos E. M. Wagner
doaj   +1 more source

On weakly cyclic Z-symmetric spacetimes

open access: yes, 2016
The object of the present paper is to study weakly cyclic Z symmetric spacetimes. At first we prove that a weakly cyclic Z symmetric spacetime is a quasi Einstein spacetime. Then we study (WCZS)_4 spacetimes satisfying the condition div C = 0.
C. A. Mantica   +3 more
core   +1 more source

Weakly Continuity of Weakly Continuity of Bounded Functions in Certain Banach Spaces

open access: yes
We defined Rosenthal Space, and gave description of some Banach spaces those are not containing the space in terms of holomorphic continuous mappings.
Habeeb Ibrahim
core   +1 more source

Observational Limits on Einasto Dark Matter Parameters from Event Horizon Telescope Images of Sgr A∗ and M87∗

open access: yesThe Astrophysical Journal
The Event Horizon Telescope (EHT) has provided images of the supermassive black holes Sgr A* and M87*, enabling direct tests of gravity. Any extended mass distribution, such as a dark matter halo, perturbs null geodesics in the photon-ring regime, making
A. Errehymy, S. Hansraj, C. Hansraj
doaj   +1 more source

Applications of dynamical systems with symmetry [PDF]

open access: yes
This thesis examines the application of symmetric dynamical systems theory to two areas in applied mathematics: weakly coupled oscillators with symmetry, and bifurcations in flame front equations.
Ashwin, Peter Brian
core  

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