We develop and investigate a new block preconditioner for a class of double saddle point(DSP)problems arising from liquid crystal directors modeling using a finite element scheme.We analyze the spectral properties of ...We develop and investigate a new block preconditioner for a class of double saddle point(DSP)problems arising from liquid crystal directors modeling using a finite element scheme.We analyze the spectral properties of the preconditioned matrix.Numerical results are provided to evaluate the behavior of preconditioned iterative methods using the new preconditioner.展开更多
基金Prof.Ai-Li Yang for providing the codes of BT and TPBT preconditionersProf.Fang Chen for providing the codes of the IAPSS preconditioner.Natural Science Foundation of Shanghai,China(Grant No.23ZR1422400).
文摘We develop and investigate a new block preconditioner for a class of double saddle point(DSP)problems arising from liquid crystal directors modeling using a finite element scheme.We analyze the spectral properties of the preconditioned matrix.Numerical results are provided to evaluate the behavior of preconditioned iterative methods using the new preconditioner.
