The density of alternation points in rational approximation
نویسندگان
چکیده
منابع مشابه
Density of the Periodic Points in the Interval Set
The dynamical system (f,R) is introduced and some of its properties are investigated. It is proven that there is an invariant set Λ on which the periodic points of f are dense.
متن کاملthe effect of traffic density on the accident externality from driving the case study of tehran
در این پژوهش به بررسی اثر افزایش ترافیک بر روی تعداد تصادفات پرداخته شده است. به این منظور 30 تقاطع در شهر تهران بطور تصادفی انتخاب گردید و تعداد تصادفات ماهیانه در این تقاطعات در طول سالهای 89-90 از سازمان کنترل ترافیک شهر تهران استخراج گردید و با استفاده از مدل داده های تابلویی و نرم افزار eviews مدل خطی و درجه دوم تخمین زده شد و در نهایت این نتیجه حاصل شد که تقاطعات پر ترافیک تر تعداد تصادفا...
15 صفحه اولThe Density of Extreme Points in Complex Polynomial Approximation
Let K be a compact set in the complex plane having connected and regular complement, and let / be any function continuous on K and analytic in the interior of K. For the polynomials pn(¡) of respective degrees at most n of best uniform approximation to / on K, we investigate the density of the sets of extreme points And) :={zeK: \f{z) p*n{f)(z)\ = \\f Pn(¡)\\K} in the boundary of K.
متن کاملOn the Abc Conjecture and Diophantine Approximation by Rational Points
We show that an earlier conjecture of the author, on diophantine approximation of rational points on varieties, implies the “abc conjecture” of Masser and Oesterlé. In fact, a weak form of the former conjecture is sufficient, involving an extra hypothesis that the variety and divisor admit a faithful group action of a certain type. Analogues of this weaker conjecture are proved in the split fun...
متن کاملThe density of rational points on non-singular hypersurfaces, I
For any n > 3, let F ∈ Z[X0, . . . , Xn] be a form of degree d > 5 that defines a non-singular hypersurface X ⊂ P. The main result in this paper is a proof of the fact that the number N(F ;B) of Q-rational points on X which have height at most B satisfies N(F ;B) = Od,ε,n(B ), for any ε > 0. The implied constant in this estimate depends at most upon d, ε and n. New estimates are also obtained f...
متن کاملذخیره 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: 1989
ISSN: 0002-9939
DOI: 10.1090/s0002-9939-1989-0948147-0