# DM Manual Pages
Examples
DM objects are used to manage communication between the algebraic structures in PETSc (Vec and Mat) and mesh data structures
in PDE-based (or other) simulations. See, for example, `DMDACreate()`.
dt.c
dtaltv.c
dtds.c
dtprob.c
dtweakform.c
petscdttetquadrules.h
petscdttriquadrules.h
makefile