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Commutative rings with homomorphic power functions
(Hindawi, 1992-01-01)
A (commutative) ring R (with identity) is called m-linear (for an integer m≥2) if (a+b)m=am+bm for all a and b in R. The m-linear reduced rings are characterized, with special attention to the finite case. A structure ...
Topologies between compact and uniform convergence on function spaces
(Hindawi, 1993-01-01)
This paper studies two topologies on the set of all continuous real-valued functionson a Tychonoff space which lie between the topologies of compact convergence and uniformconvergence.
Raman-scattering and optical studies of argon-etched GaAs surfaces
(American Physical Society, 1991-04)
We have studied the structual damage in low-energy argon-ion-bombarded (ion-etched) GaAs using Raman scattering and ultraviolet reflectivity. When combined with post-bombardment sequential chemical etching, the Raman results ...
Stability of zircon u-pb systematics in a greenschist-grade mylonite - an example from the rockfish valley fault zone, central Virginia, USA
(University of Chicago Press, 1992-09)
The mid-Paleozoic, greenschist-grade Rockfish Valley Fault Zone (RVFZ) of central Virginia cuts the Grenville-aged Pedlar River Charnockite Suite (PRCS) and contains zircons that underwent brittle failure during ductile ...
Positive pulse switching in coupled nonlinear Fabry-Perot cavities
(Optical Society of America, 1991-05)
It is shown that positive pulse switching is possible in a system of two coupled nonlinear Fabry-Perot cavities. The conditions in which a signal beam can be switched on and off by positive pulses in the steady state regime ...
Distortion-free imaging through inhomogeneities by selective spatial-filtering
(Optical Society of America, 1990-08)
Distortion-free imaging through a system with aberrations is possible for a certain class of input. The input spatial spectrum must be restricted to spatial frequencies which are equally affected by the aberrations (i.e., ...
Coupling of orthogonal polarization states in a nonlinear birefringent cavity
(Optical Society of America, 1990)
We discuss the coupling of orthogonally polarized beams in a nonlinear cavity and show experimentally how this can be used to implement gates or latches in which one polarization state is switched by another. These devices ...
Space-time digital holography: A three-dimensional microscopic imaging scheme with an arbitrary degree of spatial coherence
(AIP Publishing, 1999-10)
An on-line, spatiotemporal, digital holographic method is described and demonstrated experimentally. Using interferometric imaging, each scatterer of a three-dimensional object is encoded as a temporally modulated Fresnel ...
Computational simulation of type-II superconductivity including pinning phenomena
(American Physical Society, 1995-06-15)
A flexible tool, based on the finite-element method, for the computational simulation of vortex phenomena in type-II superconductors has been developed. These simulations use refined or newly developed phenomenological ...
Least-squares finite element approximations to solutions of interface problems
(Siam Publications, 1998-02)
A least-squares finite element method for second-order elliptic boundary value problems having interfaces due to discontinuous media properties is proposed and analyzed. Both Dirichlet and Neumann boundary data are treated. ...