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- Jintao Cui
- 2010

In this work we study finite element methods for two-dimensional Maxwell’s equations and their solutions by multigrid algorithms. We begin with a brief survey of finite element methods for Maxwell’s equations. Then we review the related fundamentals, such as Sobolev spaces, elliptic regularity results, graded meshes, finite element methods for second order… (More)

- Susanne C. Brenner, Jintao Cui, Li-Yeng Sung
- Numerical Lin. Alg. with Applic.
- 2009

The symmetric interior penalty (SIP) method on graded meshes and its fast solution by multigrid methods are studied in this paper. We obtain quasi-optimal error estimates in both the energy norm and the L2 norm for the SIP method, and prove uniform convergence of the W -cycle multigrid algorithm for the resulting discrete problem. The performance of these… (More)

- Susanne C. Brenner, Jintao Cui, Fengyan Li, Li-Yeng Sung
- Numerische Mathematik
- 2008

Abstract. A numerical method for a two-dimensional curl-curl and grad-div problem is studied in this paper. It is based on a discretization using weakly continuous P1 vector fields and includes two consistency terms involving the jumps of the vector fields across element boundaries. Optimal convergence rates (up to an arbitrary positive ) in both the energy… (More)

- Susanne C. Brenner, Jintao Cui, Thirupathi Gudi, Li-Yeng Sung
- Numerische Mathematik
- 2011

We study a class of symmetric discontinuous Galerkin methods on graded meshes. Optimal order error estimates are derived in both the energy norm and the L2 norm, and we establish the uniform convergence of V -cycle, F -cycle and W -cycle multigrid algorithms for the resulting discrete problems. Numerical results that confirm the theoretical results are also… (More)

- Susanne C. Brenner, Jintao Cui, Zhe Nan, Li-Yeng Sung
- Math. Comput.
- 2012

We propose a new numerical approach for two-dimensional Maxwell's equations that is based on the Hodge decomposition for divergence-free vector fields. In this approach an approximate solution for Maxwell's equations can be obtained by solving standard second order scalar elliptic boundary value problems. This new approach is illustrated by a P 1 finite… (More)

- Bernardo Cockburn, Jintao Cui
- Math. Comput.
- 2012

We provide the first a priori error analysis of a hybridizable discontinuous Galerkin (HDG) method for solving the vorticity-velocity-pressure formulation of the three-dimensional Stokes equations of incompressible fluid flow. By using a projection-based approach, we prove that, when all the unknowns use polynomials of degree k ≥ 0, the L2 − norm of the… (More)

- Bernardo Cockburn, Jintao Cui
- J. Sci. Comput.
- 2012

We study a hybridizable discontinuous Galerkin method for solving the vorticity-velocity formulation of the Stokes equations in three-space dimensions. We show how to hybridize the method to avoid the construction of the divergence-free approximate velocity spaces, recover an approximation for the pressure and implement the method efficiently. We prove… (More)

- Jintao Cui, Thirupathi Gudi
- Adv. Comput. Math.
- 2017

- Xiumei Tao, Jintao Cui, Dazhi Xin, Chao Lyu
- 2016 IEEE 11th Conference on Industrial…
- 2016

This paper describes the work principle, structure and drive system design methods for a four degrees of freedom manipulator with strong load capacity, light weight and high rotary accuracy, and carries out a finite element analysis on the key parts of the arm by the software of ANSYS. The simulation results shows that the performances of all the designed… (More)

- Jintao Cui, Xiumei Tao, Dazhi Xin, Chao Lyu
- 2016 IEEE 11th Conference on Industrial…
- 2016

From the angle of mechanical design, this paper studies on the method of capacity increase for the main lifting system of the large scale casting crane, puts forward a specific solution. Furthermore, introduces the methods of finite element analysis and fatigue life prediction for the key components, and the method to evaluate the functional performance of… (More)