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    • Off-diagonal low-rank preconditioner for difficult PageRank problems 

      Shen ZL; Huang TZ; Carpentieri B; Wen C; Gu XM; Tan XY (North-Holland, 2019)
      PageRank problem is the cornerstone of Google search engine and is usually stated as solving a huge linear system. Moreover, when the damping factor approaches 1, the spectrum properties of this system deteriorate rapidly ...