diff --git a/src/Makefile.am b/src/Makefile.am
index a417cea0a34341a360b50a9d16703bd7fdd78858..a1f536d617c3ced7b6f015f636ac5cb4a3fb7440 100755
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -6,6 +6,7 @@ numerics_SOURCES = main.cpp ../../openfpm_vcluster/src/VCluster.cpp ../../openfp
 numerics_CXXFLAGS = $(INCLUDES_PATH) $(BOOST_CPPFLAGS) $(SUITESPARSE_INCLUDE) $(METIS_INCLUDE) $(EIGEN_INCLUDE) -Wno-deprecated-declarations -Wunused-local-typedefs
 numerics_CFLAGS = $(CUDA_CFLAGS)
 numerics_LDADD = $(LINKLIBS) -lmetis
+nobase_include_HEADERS = PSE/Kernels.hpp
 
 .cu.o :
 	$(NVCC) $(NVCCFLAGS) -o $@ -c $<
diff --git a/src/Matrix/SparseMatrix.hpp b/src/Matrix/SparseMatrix.hpp
index 28853ce5bd343d810f6ccfe5cd60f929ada26dd8..3caf01bf1688a99b4bef0b8c4f1089bebe2fb066 100644
--- a/src/Matrix/SparseMatrix.hpp
+++ b/src/Matrix/SparseMatrix.hpp
@@ -46,9 +46,9 @@ template<typename T, unsigned int impl> struct triplet
 	}
 };
 
-/* ! \brief Sparse Matrix implementation
+/*! \brief Sparse Matrix implementation
  *
- * \tparam T Type of the sparse Matrix
+ * \tparam T Type of the sparse Matrix store on each row,colums
  * \tparam id_t type of id
  * \tparam impl implementation
  *
diff --git a/src/Matrix/SparseMatrix_Eigen.hpp b/src/Matrix/SparseMatrix_Eigen.hpp
index 6dd22d3c3cd94814f679ff1119b0905af968ff81..7b673a6b53e29f6c060f1b3ab7c9d06aaa1f2082 100644
--- a/src/Matrix/SparseMatrix_Eigen.hpp
+++ b/src/Matrix/SparseMatrix_Eigen.hpp
@@ -13,6 +13,12 @@
 
 #define EIGEN_TRIPLET 1
 
+/*! \brief It store one non-zero element in the sparse matrix
+ *
+ * Given a row, and a column, store a value
+ *
+ *
+ */
 template<typename T>
 struct triplet<T,EIGEN_TRIPLET>
 {
@@ -40,6 +46,13 @@ struct triplet<T,EIGEN_TRIPLET>
 	}
 };
 
+/* ! \brief Sparse Matrix implementation, that map over Eigen
+ *
+ * \tparam T Type of the sparse Matrix store on each row,colums
+ * \tparam id_t type of id
+ * \tparam impl implementation
+ *
+ */
 template<typename T, typename id_t>
 class SparseMatrix<T,id_t,Eigen::SparseMatrix<T,0,id_t>>
 {