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Two-scale finite element discretizations for nonlinear eigenvalue problems in quantum physics

期刊: ADVANCES IN COMPUTATIONAL MATHEMATICS, 2021; 47 (4)

In this paper, some two-scale finite element discretizations are introduced and analyzed for a class of nonlinear elliptic eigenvalue problems on tens......

A fast ADI orthogonal spline collocation method with graded meshes for the two-dimensional fractional integro-differential equation

期刊: ADVANCES IN COMPUTATIONAL MATHEMATICS, 2021; 47 (5)

We propose and analyze a time-stepping Crank-Nicolson(CN) alternating direction implicit(ADI) scheme combined with an arbitrary-order orthogonal splin......

Accurate singular values of a class of parameterized negative matrices

期刊: ADVANCES IN COMPUTATIONAL MATHEMATICS, 2021; 47 (5)

Typically, parametrization captures the essence of a class of matrices, and its potential advantage is to make accurate computations possible. But, in......

An hp-version Legendre spectral collocation method for multi-order fractional differential equations

期刊: ADVANCES IN COMPUTATIONAL MATHEMATICS, 2021; 47 (3)

In this paper, we consider the multi-order fractional differential equation and recast it into an integral equation. Based on the integral equation, w......

Pointwise error estimate in difference setting for the two-dimensional nonlinear fractional complex Ginzburg-Landau equation

期刊: ADVANCES IN COMPUTATIONAL MATHEMATICS, 2021; 47 (3)

In this paper, we propose a three-level linearized implicit difference scheme for the two-dimensional spatial fractional nonlinear complex Ginzburg-La......

An H-1 convergence of the spectral method for the time-fractional non-linear diffusion equations

期刊: ADVANCES IN COMPUTATIONAL MATHEMATICS, 2021; 47 (5)

The generalized discrete Gronwall inequality is applied to analyze the optimal H-1 error estimate of the time-stepping spectral method for the time-fr......

Residual-type a posteriori error analysis of HDG methods for Neumann boundary control problems

期刊: ADVANCES IN COMPUTATIONAL MATHEMATICS, 2021; 47 (3)

We study a posteriori error analysis of linear-quadratic boundary control problems under bilateral box constraints on the control which acts through a......

Optimal superconvergence analysis for the Crouzeix-Raviart and the Morley elements

期刊: ADVANCES IN COMPUTATIONAL MATHEMATICS, 2021; 47 (4)

In this paper, an improved superconvergence analysis is presented for both the Crouzeix-Raviart element and the Morley element. The main idea of the a......

An alternative approach for order conditions of Runge-Kutta-Nystrom methods

期刊: ADVANCES IN COMPUTATIONAL MATHEMATICS, 2021; 47 (5)

We present an alternative approach proposed by Albrecht to derive general order conditions for Runge-Kutta-Nystrom methods and relate it to the classi......

Cayley-transform-based gradient and conjugate gradient algorithms on Grassmann manifolds

期刊: ADVANCES IN COMPUTATIONAL MATHEMATICS, 2021; 47 (4)

In this paper, we study Cayley-transform-based gradient and conjugate gradient algorithms for optimization on Grassmann manifolds. We revisit the Cayl......

Error analysis of the SAV Fourier-spectral method for the Cahn-Hilliard-Hele-Shaw system

期刊: ADVANCES IN COMPUTATIONAL MATHEMATICS, 2021; 47 (5)

In this paper, we construct several efficient scalar auxiliary variable (SAV) schemes based on the Fourier-spectral method in space for the Cahn-Hilli......

Newton's method for the parameterized generalized eigenvalue problem with nonsquare matrix pencils

期刊: ADVANCES IN COMPUTATIONAL MATHEMATICS, 2021; 47 (2)

The l parameterized generalized eigenvalue problems for the nonsquare matrix pencils, proposed by Chu et al.in 2006, can be formulated as an optimizat......

Second-order accurate and energy stable numerical scheme for an immiscible binary mixture of nematic liquid crystals and viscous fluids with strong anchoring potentials

期刊: ADVANCES IN COMPUTATIONAL MATHEMATICS, 2021; 47 (3)

We consider in this paper numerical approximations of the immiscible binary mixture of nematic liquid crystals (LCs) and viscous fluids. We develop a ......

Multilevel correction adaptive finite element method for solving nonsymmetric eigenvalue problems

期刊: ADVANCES IN COMPUTATIONAL MATHEMATICS, 2021; 47 (2)

Large-scale nonsymmetric eigenvalue problems are common in various fields of science and engineering computing. However, their efficient handling is c......

Variational Bayesian inversion for the reaction coefficient in space-time nonlocal diffusion equations

期刊: ADVANCES IN COMPUTATIONAL MATHEMATICS, 2021; 47 (3)

In the paper, a variational Bayesian method is used to identify the reaction coefficient for space-time nonlocal diffusion equations using nonlocal av......

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