Existence of Non-Trivial Deformations of Some Inseparable Extension Fields
نویسندگان
چکیده
منابع مشابه
Existence of SAP extension fields
Let F be a field. We shall let W(F) denote the Wit t ring of equivalence classes of nondegenerate symmetric bilinear forms over F. There are many questions one migh t ask about the extent to which one can prescribe the Wit t ring of an extension field of F and the natural homomorphism between these Wit t rings induced by the field inclusion. In this note we consider a formally real field F and ...
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15 صفحه اولJordan derivation on trivial extension
Let A be a unital R-algebra and M be a unital A-bimodule. It is shown that every Jordan derivation of the trivial extension of A by M, under some conditions, is the sum of a derivation and an antiderivation.
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ژورنال
عنوان ژورنال: Nagoya Mathematical Journal
سال: 1968
ISSN: 0027-7630,2152-6842
DOI: 10.1017/s0027763000012617