Some remarks on almost-positivity of ψ⁢do's
Parenti, Cesare ; Parmeggiani, Alberto
Bollettino dell'Unione Matematica Italiana, Tome 1-A (1998), p. 187-215 / Harvested from Biblioteca Digitale Italiana di Matematica
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Per una classe di operatori pseudodifferenziali a caratteristiche multiple vengono date condizioni necessarie e sufficienti per la validità di stime dal basso «ottimali»

Publié le : 1998-02-01
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     author = {Cesare Parenti and Alberto Parmeggiani},
     title = {Some remarks on almost-positivity of $\psi\text{do}$'s},
     journal = {Bollettino dell'Unione Matematica Italiana},
     volume = {1-A},
     year = {1998},
     pages = {187-215},
     zbl = {0908.35146},
     mrnumber = {1618980},
     language = {en},
     url = {http://dml.mathdoc.fr/item/BUMI_1998_8_1B_1_187_0}
}

Parenti, Cesare; Parmeggiani, Alberto. Some remarks on almost-positivity of $\psi\text{do}$'s. Bollettino dell'Unione Matematica Italiana, Tome 1-A (1998) pp. 187-215. http://gdmltest.u-ga.fr/item/BUMI_1998_8_1B_1_187_0/

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