On perfect subfields over which a field is separably generated

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

On Perfect Subfields over Which a Field Is Separably Generated

In this paper, we determine the perfect subfields over which a field is separably generated. Let a field F of characteristic. p^O be an extension of a field £. A separating transcendence basis for the extension £/£ is a transcendence basis B of £/£ such that £ is a separable algebraic extension of £(£). If £/£ has a separating transcendence basis, we say that £ is separably generated over £. A ...

متن کامل

Notes on Intuitionistic (T, S)-Fuzzy Subfields of A Field

In this paper, we made an attempt to study the algebraic nature of intuitionistic (T, S)-fuzzy subfield of a field.

متن کامل

Elliptic Curves over the Perfect Closure of a Function Field

We prove that the group of rational points of a non-isotrivial elliptic curve defined over the perfect closure of a function field in positive characteristic is finitely generated.

متن کامل

A new almost perfect nonlinear function which is not quadratic

Following an example in [13], we show how to change one coordinate function of an almost perfect nonlinear (APN) function in order to obtain new examples. It turns out that this is a very powerful method to construct new APN functions. In particular, we show that the approach can be used to construct “non-quadratic” APN functions. This new example is in remarkable contrast to all recently const...

متن کامل

Ramification theory for varieties over a perfect field

If p2 : Γ → U is proper, Γ∗ = pr1∗ ◦ pr∗ 2 : H c (U,Q ) → H c (U,Q ) is defined. Write Tr(Γ∗ : H∗ c (UF̄ ,Q )) = ∑2d q=0(−1)Tr(Γ : H c (UF̄ ,Q )). Assume X: smooth U ⊂ X: the complement of a divisor D = D1 ∪ · · · ∪ Dm with simple normal crossings. Define p : (X ×X)′ → X ×X: the blow-up at D1 ×D1, . . . , Dm ×Dm ∆X = X → (X ×X)′: the log diagonal. Theorem 1.2 Let Γ̄′ be the closure of Γ in (X ×X)′...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Proceedings of the American Mathematical Society

سال: 1972

ISSN: 0002-9939

DOI: 10.1090/s0002-9939-1972-0294304-6