Results 51 to 60 of about 36,154 (311)

FEAST for Differential Eigenvalue Problems [PDF]

open access: yesSIAM Journal on Numerical Analysis, 2020
Expanded discussion for clarity in several places, revised statement of theorem 5.2 for ...
Andrew J. Horning, Alex Townsend
openaire   +3 more sources

Gait Analysis of Pak Biawak: A Necrobot Lizard Built using the Skeleton of an Asian Water Monitor (Varanus Salvator)

open access: yesAdvanced Robotics Research, EarlyView.
Pak Biawak, a necrobot, embodies an unusual fusion of biology and robotics. Designed to repurpose natural structures after death, it challenges conventional boundaries between nature and engineering. Its movements are precise yet unsettling, raising questions about sustainability, ethics, and the untapped potential of biointegrated machines.
Leo Foulds   +2 more
wiley   +1 more source

Equation of the fixed membrane in the n-dimensional space: some remarks on the maxima of the eigenfunctions subjected to various norms

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1979
We show in this paper that the sequence {max|uk|}, where the uk are the eigenfunctions of the problem Δu+λu=0 in D⊂Rn and u=0 on ∂D, is not bounded generally if one imposes the norm ∫Du2p(x)dx=1, p=(1),2,3,….
Yves Biollay
doaj   +1 more source

Numerical Solutions of Quantum Mechanical Eigenvalue Problems

open access: yesFrontiers in Physics, 2020
A large class of problems in quantum physics involve solution of the time independent Schrödinger equation in one or more space dimensions. These are boundary value problems, which in many cases only have solutions for specific (quantized) values of the ...
Asif Mushtaq   +2 more
doaj   +1 more source

Triple‐Mode Ferroelectric Thin‐Film Transistor for Hybrid Electrical–Optical Reservoir Computing

open access: yesAdvanced Science, EarlyView.
A triple‐mode ferroelectric thin‐film transistor is developed by integrating Si3N4/HZO/IGZO layers to realize three independent memory modes: electric long‐term, electric short‐term, and optical short‐term. This single‐device architecture functions as both a reservoir and readout layer, achieving 92.43% MNIST accuracy. It offers a fully hardware‐based,
Hyeonho Lee   +9 more
wiley   +1 more source

The spectral Galerkin method for the differential operator eigenvalue problems based on a least-squares form and its Schur complement type implementation methods

open access: yesResults in Applied Mathematics
The differential operator eigenvalue problems often arise in the field of physics and engineering, such as solid band structure, electron orbitals of atoms or molecules, and quantum bound states.
Jiaoxia Huang, Yonghui Qin
doaj   +1 more source

On a double eigenvalue problem [PDF]

open access: yesProceedings of the American Mathematical Society, 1954
where X = -1. Rembs [3] demonstrated the existence of a countably infinite set of such a's under the assumption that the functions p, q, and r are analytic on the interval [0, b], that q>0 and r >0 on the interval, and that p >0 on the open interval, but vanishes to the first order at each end.
openaire   +2 more sources

Helical Electron Beam Micro‐Bunching by High‐Order Modes in a Micro‐Plasma Waveguide

open access: yesAdvanced Science, EarlyView.
ABSTRACT Electron acceleration by a high‐power Laguerre‐Gaussian pulse in a micro‐plasma waveguide is investigated. When the incident laser travels in the waveguide, electrons on the wall are extracted into the vacuum core and accelerated by the longitudinal field of the waveguide mode.
Xingju Guo, Longqing Yi
wiley   +1 more source

Green functions for four-point boundary value problems with applications to heterogeneous beams

open access: yesApplications in Engineering Science
The main objective of this study is to define the Green functions for four-point boundary value problems. It is a further aim to clarify what properties the Green functions have and to present a method for calculating the elements of these Green ...
Abderrazek Messaoudi   +2 more
doaj   +1 more source

On minmax characterization in non-linear eigenvalue problems

open access: yesBruno Pini Mathematical Analysis Seminar, 2022
This is a note based on the paper [20] written in collaboration with N. Fusco and Y. Zhang. The main goal is to introduce minimax type variational characterization of non-linear eigenvalues of the p-Laplacian and other results related to shape and ...
Shirsho Mukherjee
doaj   +1 more source

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