MMA2009 P.Code=RodrC ===============------------------------------ First Name =Carmen Last Name =Rodrigo Title =PhD student Institution =University of Zaragoza Street Address =Pedro Cerbuna, 12 City =Zaragoza State =Spain Zip Code =50009 Telephone = FAX = E-mail =carmenr@unizar.es URL = Title of talk and AMS Subject Classification= Francisco Gaspar, J.L. Gracia, F.J. Lisbona, Carmen Rodrigo. Development of efficient multigrid finite element methods on semi-structured triangular grids -- plenary lecture; Francisco Gaspar, J.L. Gracia, F.J. Lisbona, Carmen Rodrigo. Efficient multigrid method on hierarchical triangular grids for the Biot's consolidation problem.