Results 1 to 10 of about 17,228 (99)

The improved interpolating element-free Galerkin method with nonsingular weight functions for 3D Schrödinger equations

open access: yesAlexandria Engineering Journal
In this study, the improved interpolating element-free Galerkin (IIEFG) method with a nonsingular weight function for solving the 3D Schrödinger equations is presented.
Haili Cui   +3 more
doaj   +4 more sources

A Dimension Splitting-Interpolating Moving Least Squares (DS-IMLS) Method with Nonsingular Weight Functions [PDF]

open access: yesMathematics, 2021
By introducing the dimension splitting method (DSM) into the improved interpolating moving least-squares (IMLS) method with nonsingular weight function, a dimension splitting–interpolating moving least squares (DS-IMLS) method is first proposed.
Jufeng Wang, Fengxin Sun, Rongjun Cheng
doaj   +2 more sources

An Improved Interpolating Element‐Free Galerkin Method Based on Nonsingular Weight Functions [PDF]

open access: yesMathematical Problems in Engineering, 2014
Based on the moving least‐squares (MLS) approximation, an improved interpolating moving least‐squares (IIMLS) method based on nonsingular weight functions is presented in this paper. Then combining the IIMLS method and the Galerkin weak form, an improved interpolating element‐free Galerkin (IIEFG) method is presented for two‐dimensional potential ...
Sun, F. X., Liu, C., Cheng, Y. M.
  +5 more sources

A Hybrid Interpolating Meshless Method for 3D Advection–Diffusion Problems

open access: yesMathematics, 2022
A hybrid interpolating meshless (HIM) method is established for dealing with three-dimensional (3D) advection–diffusion equations. To improve computational efficiency, a 3D equation is changed into correlative two-dimensional (2D) equations. The improved
Zhijuan Meng, Xiaofei Chi, Lidong Ma
doaj   +1 more source

Fractional Order Nonsingular Terminal Sliding Mode Cooperative Fault-Tolerant Control for High-Speed Trains With Actuator Faults Based on Grey Wolf Optimization

open access: yesIEEE Access, 2023
This paper mainly studies the cooperative precise control of multiple high-speed trains under external random interference. The safety distance potential energy function is introduced to constrain the safety distance between trains, and the output ...
Binchuan Liang, Tong Zhang
doaj   +1 more source

Supertropical matrix algebra III: Powers of matrices and generalized eigenspaces [PDF]

open access: yes, 2010
We investigate powers of supertropical matrices, with special attention to the role of the coefficients of the supertropical characteristic polynomial (especially the supertropical trace) in controlling the rank of a power of a matrix.
Izhakian, Zur, Rowen, Louis
core   +3 more sources

Quot schemes of curves and surfaces: virtual classes, integrals, Euler characteristics

open access: yes, 2021
We compute tautological integrals over Quot schemes on curves and surfaces. After obtaining several explicit formulas over Quot schemes of dimension 0 quotients on curves (and finding a new symmetry), we apply the results to tautological integrals ...
Oprea, Dragos, Pandharipande, Rahul
core   +1 more source

The Katz-Klemm-Vafa conjecture for K3 surfaces [PDF]

open access: yes, 2016
We prove the KKV conjecture expressing Gromov–Witten invariants of K3 surfaces in terms of modular forms. Our results apply in every genus and for every curve class.
Pandharipande, R, Thomas, RP
core   +3 more sources

Virtual Betti numbers of real algebraic varieties [PDF]

open access: yes, 2002
The weak factorization theorem for birational maps is used to prove that for all nonnegative i the ith mod 2 Betti number of compact nonsingular real algebraic varieties has a unique extension to a "virtual Betti number" beta_i defined for all real ...
McCrory, Clint, Parusinski, Adam
core   +3 more sources

Dynamic Learning from Adaptive Neural Control of Uncertain Robots with Guaranteed Full-State Tracking Precision

open access: yesComplexity, 2017
A dynamic learning method is developed for an uncertain n-link robot with unknown system dynamics, achieving predefined performance attributes on the link angular position and velocity tracking errors.
Min Wang, Yanwen Zhang, Huiping Ye
doaj   +1 more source

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