/usr/include/dune/pdelab/gridoperator/ is in libdune-pdelab-dev 2.0.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/dune/pdelab/gridoperator/common/
/usr/include/dune/pdelab/gridoperator/common/assembler.hh
/usr/include/dune/pdelab/gridoperator/common/assemblerutilities.hh
/usr/include/dune/pdelab/gridoperator/common/borderdofexchanger.hh
/usr/include/dune/pdelab/gridoperator/common/diagonallocalmatrix.hh
/usr/include/dune/pdelab/gridoperator/common/gridoperatorutilities.hh
/usr/include/dune/pdelab/gridoperator/common/localassemblerenginebase.hh
/usr/include/dune/pdelab/gridoperator/common/localmatrix.hh
/usr/include/dune/pdelab/gridoperator/common/timesteppingparameterinterface.hh
/usr/include/dune/pdelab/gridoperator/default/
/usr/include/dune/pdelab/gridoperator/default/assembler.hh
/usr/include/dune/pdelab/gridoperator/default/jacobianapplyengine.hh
/usr/include/dune/pdelab/gridoperator/default/jacobianengine.hh
/usr/include/dune/pdelab/gridoperator/default/localassembler.hh
/usr/include/dune/pdelab/gridoperator/default/patternengine.hh
/usr/include/dune/pdelab/gridoperator/default/residualengine.hh
/usr/include/dune/pdelab/gridoperator/gridoperator.hh
/usr/include/dune/pdelab/gridoperator/onestep/
/usr/include/dune/pdelab/gridoperator/onestep.hh
/usr/include/dune/pdelab/gridoperator/onestep/enginebase.hh
/usr/include/dune/pdelab/gridoperator/onestep/jacobianengine.hh
/usr/include/dune/pdelab/gridoperator/onestep/jacobianresidualengine.hh
/usr/include/dune/pdelab/gridoperator/onestep/localassembler.hh
/usr/include/dune/pdelab/gridoperator/onestep/patternengine.hh
/usr/include/dune/pdelab/gridoperator/onestep/prestageengine.hh
/usr/include/dune/pdelab/gridoperator/onestep/residualengine.hh
/usr/include/dune/pdelab/gridoperatorspace/gridoperatorspaceutilities.hh
/usr/include/dune/pdelab/gridoperatorspace/localmatrix.hh