<div dir="ltr">Dear PETSc folks,<div><br></div><div>While searching literature on the preconditioner for contact/mesh tying problem, I saw the paper by Dr. Adams "Algebraic multigrid methods for constrained linear systems with applications to contact problems in solid mechanics, NLAA, 2004". Given the promising aspects the paper has shown for constrained linear system, I wonder if some code's also available in PETSc for testing/further extension?</div><div><br></div><div>Thanks<br clear="all"><div><div class="gmail_signature"><div dir="ltr">Giang</div></div></div>
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