On the non-negativity of solutions of the heat equation.
Bellman, Richard
Bollettino dell'Unione Matematica Italiana, Tome 12 (1957), p. 520-523 / Harvested from Biblioteca Digitale Italiana di Matematica
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Publié le : 1957-12-01
@article{BUMI_1957_3_12_4_520_0,
     author = {Richard Bellman},
     title = {On the non-negativity of solutions of the heat equation.},
     journal = {Bollettino dell'Unione Matematica Italiana},
     volume = {12},
     year = {1957},
     pages = {520-523},
     zbl = {0079.31401},
     mrnumber = {90880},
     language = {en},
     url = {http://dml.mathdoc.fr/item/BUMI_1957_3_12_4_520_0}
}

Bellman, Richard. On the non-negativity of solutions of the heat equation.. Bollettino dell'Unione Matematica Italiana, Tome 12 (1957) pp. 520-523. http://gdmltest.u-ga.fr/item/BUMI_1957_3_12_4_520_0/