@article{10_4153_CJM_1992_038_7,
     author = {Sawyer, P.},
     title = {The {Heat} {Equation} on the {Spaces} of {Positive} {Definite} {Matrices}},
     journal = {Canadian journal of mathematics},
     pages = {624--651},
     year = {1992},
     volume = {44},
     number = {3},
     doi = {10.4153/CJM-1992-038-7},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1992-038-7/}
}