On ring derivations and quadratic functionals.
Aequationes mathematicae, Tome 42 (1991) no. 3, pp. 80-84.

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Mots-clés : ring derivations on a function algebra, Choquet boundary, dense sequentially non-isolated set, representability of quadratic functionals by bilinear forms
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     author = {Peter Semrl},
     title = {On ring derivations and quadratic functionals.},
     journal = {Aequationes mathematicae},
     pages = {80--84},
     publisher = {mathdoc},
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     number = {3},
     year = {1991},
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Peter Semrl. On ring derivations and quadratic functionals.. Aequationes mathematicae, Tome 42 (1991) no. 3, pp. 80-84. http://geodesic.mathdoc.fr/item/AM2_1991__42_3_137420/