• on some problems on smooth approximation and smooth extension of lipschitz functions on banach–finsler manifolds

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 394
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
    let us consider a riemannian manifold m (either separable or non-separable). we prove that, for every ε > 0, every lipschitz function f : m → r can be uniformly approximated by a lipschitz, c1-smooth function g with lip(g) ≤ lip(f ) + ε. as a consequence, every riemannian manifold is uniformly bumpable. these results extend to the non-separable setting those given in [1] for separable riemannian manifolds. the results are presented in the context of c finsler manifolds modeled on banach spaces. sufficient conditions are given on the finsler manifold m (and the banach space x where m is modeled), so that every lipschitz function f : m → r can be uniformly approximated by a lipschitz, ck-smooth function g with lip(g) ≤ clip(f ) (for some c depending only on x). some applications of these results are also given as well as a characterization, on the separable case, of the class of c finsler manifolds satisfying the above property of approximation. finally, we give sufficient conditions on the c1 finsler manifold m and x, to ensure the existence of lipschitz and c1-smooth extensions of every real-valued function f defined on a submanifold n of m provided f is c1-smooth on n and lipschitz with the metric induced by m.

سوال خود را در مورد این مقاله مطرح نمایید :

با انتخاب دکمه ثبت پرسش، موافقت خود را با قوانین انتشار محتوا در وبسایت تی پی بین اعلام می کنم
مقالات جدیدترین رویدادها
مقالات جدیدترین ژورنال ها