--- a/src/SbpOperators/volumeops/volume_operator.jl	Fri Mar 18 16:57:00 2022 +0100
+++ b/src/SbpOperators/volumeops/volume_operator.jl	Mon Mar 21 09:51:07 2022 +0100
@@ -6,7 +6,7 @@
 the stencils `inner_stencil` and `closure_stencils`. When `Dim=1`, the
 corresponding `VolumeOperator` tensor mapping is returned. When `Dim>1`, the
 returned operator is the appropriate outer product of a one-dimensional
-operators and `IdentityMapping`s, e.g for `Dim=3` the volume operator in the
+operators and `IdentityTensor`s, e.g for `Dim=3` the volume operator in the
 y-direction is `I⊗op⊗I`.
 """
 function volume_operator(grid::EquidistantGrid, inner_stencil, closure_stencils, parity, direction)
@@ -21,7 +21,7 @@
     VolumeOperator{T,N,M,K} <: TensorOperator{T,1}
 Implements a one-dimensional constant coefficients volume operator
 """
-struct VolumeOperator{T,N,M,K} <: TensorMapping{T,1,1}
+struct VolumeOperator{T,N,M,K} <: LazyTensor{T,1,1}
     inner_stencil::Stencil{T,N}
     closure_stencils::NTuple{M,Stencil{T,K}}
     size::NTuple{1,Int}