منابع مشابه
A Method to Estimate the Degree of C0-Sufficiency of Analytic Functions
The problem of determining the degree of C-sufficiency s(f) of a given analytic function germ f : (C, 0) → (C, 0) is well known in singularity theory. There is some previous work which gives an upper estimate for this number (see Section 2 for its definition). For instance, in the paper [Lichtin 81], the case n = 2 is considered. In the paper [Fukui 91], an estimate for the degree of C-sufficie...
متن کاملOn C0-Group of Linear Operators
In this paper we consider C0-group of unitary operators on a Hilbert C*-module E. In particular we show that if A?L(E) be a C*-algebra including K(E) and ?t a C0-group of *-automorphisms on A, such that there is x?E with =1 and ?t (?x,x) = ?x,x t?R, then there is a C0-group ut of unitaries in L(E) such that ?t(a) = ut a ut*.
متن کاملIii. Convexity and Sufficiency Ubc M402 Lecture Notes C 2015
The practical effectiveness of Thm. A.1 is roughly commensurate with the difficulty of its proof. That is, the proof is essentially trivial, and the condition is nearly useless. There are very few problems where simple pointwise minimization of the integrand at every instant yields an arc that is even admissible, much less optimal! Even worse, we have met many true minimizers (often in problems...
متن کاملSmooth functions on c0
The space c0 lies at the heart of many constructions of higher order smooth functions on Banach spaces. To name a few, recall Torunczyk’s proof of the existence of C-smooth partitions of unity on WCG spaces ([12]) or Haydon’s recent constructions of C-bump functions on certain C(K) spaces ([7]). The crucial property of c0 that allows for those constructions is a rich supply of C -smooth functio...
متن کاملOn c0-saturated Banach spaces
A Banach space E is c0-saturated if every closed infinite dimensional subspace of E contains an isomorph of c0. A c0-saturated Banach space with an unconditional basis which has a quotient space isomorphic to l2 is constructed. A Banach space E is c0-saturated if every closed infinite dimensional subspace of E contains an isomorph of c0. In [2] and [3], it was asked whether all quotient spaces ...
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: Journal of the Mathematical Society of Japan
سال: 1990
ISSN: 0025-5645
DOI: 10.2969/jmsj/04220265