Fast and low‐power leading‐one detectors for energy‐efficient logarithmic computing
The logarithmic number system (LNS) can be used to simplify the computation of arithmetic functions, such as multiplication. This article proposes three leading‐one detectors (LODs) to speed up the binary logarithm calculation in the LNS.
Mohammad Saeed Ansari +3 more
doaj +1 more source
Parallel Magnetic Resonance Imaging as Approximation in a Reproducing Kernel Hilbert Space [PDF]
In Magnetic Resonance Imaging (MRI) data samples are collected in the spatial frequency domain (k-space), typically by time-consuming line-by-line scanning on a Cartesian grid.
Athalye, Vivek +2 more
core +1 more source
Theory and applications of four-wave mixing in photorefractive media [PDF]
The development of a theory of four-wave mixing in photo-refractive crystals is described. This theory is solved in the undepleted pumps approximation with linear absorption and without using the undepleted pumps approximation for negligible absorption ...
Cronin-Golomb, Mark +3 more
core +1 more source
Learning‐based control for discrete‐time constrained nonzero‐sum games
A generalized policy‐iteration‐based solution to a class of discrete‐time multi‐player non‐zero‐sum games concerning the control constraints was proposed. Based on initial admissible control policies, the iterative value function of each player converges
Chaoxu Mu, Jiangwen Peng, Yufei Tang
doaj +1 more source
Simplified exponential approximation for thermodynamics of a hard-core repulsive Yukawa fluid [PDF]
Exponential approximation based on the first order mean spherical approximation (FMSA) is applied to the study of the structure and thermodynamics of hard-core repulsive Yukawa fluids.
Hlushak, S., Trokhymchuk, A.
core +2 more sources
Statistical field theory for simple fluids: the collective variables representation
An alternative representation of an exact statistical field theory for simple fluids, based on the method of collective variables, is presented. The results obtained are examined from the point of another version of theory that was developed recently by ...
Bohm +28 more
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Anisotropic Homogeneous Cosmologies in the Post-Newtonian Approximation [PDF]
In this paper we explore how far the post-Newtonian theory goes in overcoming the difficulties associated with anisotropic homogeneous cosmologies in the Newtonian approximation.
Rainsford, Tamath
core +3 more sources
A First Approximation to Homotopy Theory [PDF]
Publisher Summary The suspension map, originally introduced by Freudenthal for the study of the homotopy groups of spheres, has proved to be important in general homotopy questions and it has been found that within the suspension range, the situation is simpler than in the general case.
Spanier, Edwin H., Whitehead, J. H. C.
openaire +3 more sources
Goldstone Theorem in the Gaussian Functional Approximation to the Scalar $\phi^{4}$ Theory [PDF]
We verify the Goldstone theorem in the Gaussian functional approximation to the $\phi^{4}$ theory with internal O(2) symmetry. We do so by reformulating the Gaussian approximation in terms of Schwinger-Dyson equations from which an explicit demonstration
Dmitrašinović, V. +2 more
core +2 more sources
Theory of antibound states in partially filled narrow band systems
We present a theory of the dynamical two-particle response function in the Hubbard model based on the time-dependent Gutzwiller approximation. The results are in excellent agreement with exact diagonalization on small clusters and give reliable results ...
F. Becca +4 more
core +1 more source

