7289 search results - page 111 / 1458 » A Dependent Set Theory |
AML
2011
13 years 3 months ago
2011
In this paper we prove three theorems about the theory of Borel sets in models of ZF without any form of the axiom of choice. We prove that if B ⊆ 2ω is a Gδσ-set then either...
CDC
2008
IEEE
14 years 2 months ago
2008
IEEE
— Given an unforced nonlinear system and two nested closed and invariant sets Γ ⊂ O, we present reduction principles allowing one to extrapolate the properties of stability, a...
CDC
2008
IEEE
14 years 2 months ago
2008
IEEE
— In this paper we explore the stabilization of closed invariant sets for passive systems, and present conditions under which a passivity-based feedback makes the set stable, sem...
CIE
2005
Springer
14 years 1 months ago
2005
Springer
Abstract. We discuss some known and introduce some new reducibilities on regular sets. We establish some facts on the corresponding degree structures and relate some reducibilities...
AGP
1999
IEEE
14 years 11 days ago
1999
IEEE
In this paper we consider the relative expressive power of two very common operators applicable to sets and multisets: the with and the union operators. For such operators we prove...