Results 21 to 30 of about 1,551,774 (276)

Functoriality and the Inverse Galois Problem [PDF]

open access: yes, 2015
We prove that there are infinitely many finite simple groups of symplectic Lie type, of any specified characteristic and rank, which appear as Galois groups over the field of rational numbers. This generalizes a result of Wiese, which inspired this paper.
Khare, Chandrashekhar   +2 more
core   +1 more source

Obtaining L-systems Rules from Strings

open access: yesVetor, 2012
Este artigo apresenta uma proposta para solucionar o Problema Inverso de Lindenmayer nas classes de gramáticas L-systems livres de contexto e determinísticas.
Edmar Santos, Regina Célia Coelho
doaj   +4 more sources

Inverse stability problem in beam dynamics

open access: yesPhysical Review Accelerators and Beams, 2023
Beam stability is conventionally described by means of the stability diagram, which is a threshold line in a complex plane of a particular intensity parameter, the coherent tune shift; the diagram separates stable and unstable states. The incoherent tune
Alexey Burov
doaj   +1 more source

Inverse Problems [PDF]

open access: yes, 2020
AbstractGenerally speaking, inverse problems typically consist in the reconstruction of causes for observed effects. In imaging applications the cause is usually a probe and the effect are observed data. The corresponding forward problems then consists in predicting experimental data given perfect knowledge of the probe.
Hohage, Thorsten   +5 more
openaire   +2 more sources

Boundary Shape Inversion of Two-Dimensional Steady-State Heat Transfer System Based on Finite Volume Method and Decentralized Fuzzy Adaptive PID Control

open access: yesApplied Sciences, 2019
A shape identification scheme was developed to determine the geometric shape of the inaccessible parts of two-dimensional objects using the measured temperatures on their accessible surfaces.
Liangliang Yang   +2 more
doaj   +1 more source

Application of direct and inverse kinematics and dynamics in motion planning of manipulator links

open access: yesInternational Journal of Applied Mechanics and Engineering, 2023
For the synthesis of manipulators and robots, an accurate analysis of the movements of the individual links is essential. This thesis deals with motion planning of the effector of a multi-linked manipulator.
Ingrid Delyová   +5 more
doaj   +1 more source

Spectral, Scattering and Dynamics: Gelfand–Levitan–Marchenko–Krein Equations

open access: yesMathematics, 2023
In this paper, we consider the Gelfand–Levitan–Marchenko–Krein approach. It is used for solving a variety of inverse problems, like inverse scattering or inverse problems for wave-type equations in both spectral and dynamic formulations.
Sergey Kabanikhin   +3 more
doaj   +1 more source

Solution to the LHC Inverse Problem [PDF]

open access: yes, 2006
The "LHC Inverse Problem" refers to the question of determining the underlying physical theory giving rise to the signals expected to be seen at the Large Hadron Collider. The solution to this problem (Bard) is reviewed.
Knuteson, Bruce
core   +3 more sources

On the inverse Collatz-Sinogowitz irregularity problem

open access: yesOpen Mathematics, 2023
The Collatz-Sinogowitz irregularity index is the oldest known numerical measure of graph irregularity. For a simple and connected graph GG of order nn and size mm, it is defined as CS(G)=λ1−2m/n,\hspace{0.1em}\text{CS}\hspace{0.1em}\left(G)={\lambda }_{1}
Alazemi Abdullah   +2 more
doaj   +1 more source

Investigation into the importance of using natural PVCs and pathological models for potential-based ECGI validation

open access: yesFrontiers in Physiology, 2023
Introduction: Premature ventricular contractions (PVCs) are one of the most commonly targeted pathologies for ECGI validation, often through ventricular stimulation to mimic the ectopic beat.
Laura R. Bear   +19 more
doaj   +1 more source

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