Three effective preconditioners for double saddle point problem

In this paper, we mainly propose three preconditioners for solving double saddle point problems, which arise from some practical problems. Firstly, the solvability of this kind of problem is investigated under suitable assumption. Next, we prove that all the eigenvalues of the three preconditioned m...

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Príomhchruthaitheoirí: Yuwen He, Jun Li, Lingsheng Meng
Formáid: Alt
Teanga:English
Foilsithe / Cruthaithe: AIMS Press 2021-04-01
Sraith:AIMS Mathematics
Ábhair:
Rochtain ar líne:http://www.aimspress.com/article/doi/10.3934/math.2021406?viewType=HTML