搜索结果: 1-15 共查到“泛函分析 T b-Theorem”相关记录19条 . 查询时间(0.086 秒)
The Generalized Area Theorem and Some of its Consequences
Transmission of binary binary files
2015/8/21
There is a fundamental relationship between belief propagation and maximum a posteriori decoding. The case of transmission over the binary erasure channel was investigated in detail in a companion pap...
On a Generalization of Blaschke’s Rolling Theorem and the Smoothing of Surfaces
Blaschke’s Rolling Theorem generalized convexity
2015/8/20
A generalization of Blaschke’s Rolling Theorem for not necessarily convex sets is proved that exhibits an
intimate connection between a generalized notion of convexity, various concepts in mathematic...
Formulating Szemeredi's Theorem in Terms of Ultrafilters
Formulating Szemeredi's Theorem Terms of Ultrafilters Functional Analysis
2012/6/21
Van der Waerden's theorem asserts that if you color the natural numbers with, say, five different colors, then you can always find arbitrarily long sequences of numbers that have the same color and th...
Cartan MASAs in von Neumann Algebras are Norming and a New Proof of Mercer's Theorem
Norming algebra Cartan MASA C*-diagonal
2012/3/1
In this note we observe that a result of Sinclair and Smith together with the Feldman-Moore description of a von Neumann algebra with a Cartan MASA shows that Cartan MASAs are norming. We also use the...
Common fixed points theorem for two multivalued mappings in cone metric spaces
functional analysis common fixed point non normal cone multivalued mapping cone metric spaces
2011/10/20
In this paper, a new generalized contractive condition is introduced in metric space. By the condition and without the normality of the cone, the existence of common fixed points of multivalued mappin...
A T(1)-Theorem for non-integral operators
T (1)-Theorem T (b)-Theorem paraproducts Davies-Gaffney estimates Hardy and BMO spaces
2011/9/16
Abstract: Let $X$ be a space of homogeneous type and let $L$ be a sectorial operator with bounded holomorphic functional calculus on $L^2(X)$. We assume that the semigroup $\{e^{-tL}\}_{t>0}$ satisfie...
On generalized Flett's mean value theorem
Flett’s mean value theorem real function differentiability Taylor polynomial
2011/9/13
Abstract: We present a new proof of generalized Flett's mean value theorem due to Pawlikowska (from Demonstratio Math. 1999) using only the original Flett's mean value theorem. Also, a Trahan-type con...
Bounds For Multilinear Sublevel Sets Via Szemeredi's Theorem
Multilinear Sublevel Sets Szemeredi's Theorem Classical Analysis and ODEs
2011/9/5
Abstract: In 2005, Li, Tao, Thiele and the author raised a general question concerning upper bounds for a class of multilinear oscillatory integral operators, and established such bounds in a few case...
Some Representation Theorem for nonreflexive Banach space ultrapowers under the Continuum Hypothesis
Banach space ultrapowers Stone-Cech remainder dual space extreme points smooth points complemented subspaces
2011/8/31
Abstract: In this paper it will be shown that assuming the Continuum Hypothesis (CH) every nonreflexive Banach space ultrapower is isometrically isomorphic to the space of continuous, bounded and real...
A generalization of Marstrand's theorem for projections of cartesian products
Marstrand's theorem cartesian products Classical Analysis and ODEs
2011/8/23
Abstract: We prove the following variant of Marstrand's theorem about projections of cartesian products of sets:
Let $K_1,...,K_n$ Borel subsets of $\mathbb R^{m_1},... ,\mathbb R^{m_n}$ respectivel...
About the Hochschild-Kostant-Rosenberg theorem for differentiable manifolds
the Hochschild-Kostant-Rosenberg theorem differentiable manifolds Rings and Algebras
2011/8/24
Abstract: In this notes it will be provided a set of techniques which can help one to understand the proof of the Hochschild-Kostant-Rosenberg theorem for differentiable manifolds. Precise definitions...
C*-algebras with the weak expectation property and a multivariable analogue of Ando's theorem on the numerical radius
C*-algebras the weak expectation property Ando's theorem the numerical radius
2011/8/23
Abstract: A classic theorem of T. Ando characterises operators that have numerical radius at most one as operators that admit a certain positive 2x2 operator matrix completion. In this paper we consid...
Korovkin type theorem and iterates of certain positive linear operators
Iterates of operators degree of approximation K-functionals modulus of smoothness
2011/1/18
In this paper we prove Korovkin type theorem for iterates of general positive linear operators T :C [0, 1] ! C [0, 1] and derive quantitative estimates in terms of modulus of smoothness. In particular...
On the equivariant implicit function theorem with low regularity and applications to geometric variational problems
equivariant implicit function theorem low regularity and applications variational problems
2010/12/14
We prove an implicit function theorem for functions on infinite dimensional Banach manifolds, invariant under the (local) action of a finite dimensional Lie group. Motivated by some geometric variatio...
An elementary proof of Hilbert's theorem on ternary quartics
elementary proof Hilbert's theorem ternary quartics
2010/12/7
In 1888, Hilbert proved that every nonnegative quartic form f = f(x, y, z) with real oefficients is a sum of three squares of quadratic forms. His proof was ahead of its time and used advanced methods...