CONJUGATION PROBLEM WITH MULTIPOINT CONDITIONS FOR MIXED HYPERBOLIC TYPE EQUATIONS

2019 ◽  
pp. 21-28
Author(s):  
O. M. Medvid ◽  
I. Ya. Savka ◽  
I. R. Tymkiv
Keyword(s):  
Lebesgue Measure ◽  
Sobolev Spaces ◽  
Higher Order ◽  
Hyperbolic Type ◽  
Conjugation Problem ◽  
Correct Solvability ◽  
Almost All

The conditions of correct solvability in the Sobolev spaces of the conjugation problem with local multipoint conditions and periodic conditions for higher order mixed hyperbolic type equations is obtained. It has been proved that these conditions fulfill for almost all (with respect to the Lebesgue measure) vectors made up of the nodes of multipoint conditions.

Weighted higher order exponential type inequalities in metric spaces and applications

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Huiju Wang ◽  
Pengcheng Niu
Keyword(s):  
Homogeneous Space ◽  
Lie Groups ◽  
Sobolev Spaces ◽  
Exponential Type ◽  
Metric Spaces ◽  
Type Inequality ◽  
Higher Order ◽  
Geodesic Space ◽  
Stratified Lie Groups ◽  
Weighted Case

AbstractIn this paper, we establish weighted higher order exponential type inequalities in the geodesic space {({X,d,\mu})} by proposing an abstract higher order Poincaré inequality. These are also new in the non-weighted case. As applications, we obtain a weighted Trudinger’s theorem in the geodesic setting and weighted higher order exponential type estimates for functions in Folland–Stein type Sobolev spaces defined on stratified Lie groups. A higher order exponential type inequality in a connected homogeneous space is also given.

Consistency conditions for a finite set of projections of a function

1979 ◽  
Vol 85 (1) ◽  
pp. 61-68 ◽  
Author(s):  
K. J. Falconer
Keyword(s):  
Lebesgue Measure ◽  
Convex Subset ◽  
Compact Convex ◽  
Unit Vector ◽  
Compact Convex Subset ◽  
Finite Collection ◽  
Finite Set ◽  
Almost All ◽  
Dimensional Lebesgue Measure ◽  
Unit Vectors

Let H(μ, θ) be the hyperplane in Rn (n ≥ 2) that is perpendicular to the unit vector 6 and perpendicular distance μ from the origin; that is, H(μ, θ) = (x ∈ Rn: x. θ = μ). (Note that H(μ, θ) and H(−μ, −θ) are the same hyperplanes.) Let X be a proper compact convex subset of Rm. If f(x) ∈ L1(X) we will denote by F(μ, θ) the projection of f perpendicular to θ; that is, the integral of f(x) over H(μ, θ) with respect to (n − 1)-dimensional Lebesgue measure. By Fubini's Theorem, if f(x) ∈ L1(X), F(μ, θ) exists for almost all μ for every θ. Our aim in this paper is, given a finite collection of unit vectors θ1, …, θN, to characterize the F(μ, θi) that are the projections of some function f(x) with support in X for 1 ≤ i ≤ N.

Properties of Classes of Random Graphs

1994 ◽  
Vol 3 (4) ◽  
pp. 435-454 ◽  
Author(s):  
Neal Brand ◽  
Steve Jackson
Keyword(s):  
Random Graphs ◽  
Higher Order ◽  
Order Property ◽  
First Order ◽  
New Class ◽  
Vertex Transitive ◽  
Vertex Transitive Graphs ◽  
Almost All ◽  
Transitive Graphs

In [11] it is shown that the theory of almost all graphs is first-order complete. Furthermore, in [3] a collection of first-order axioms are given from which any first-order property or its negation can be deduced. Here we show that almost all Steinhaus graphs satisfy the axioms of almost all graphs and conclude that a first-order property is true for almost all graphs if and only if it is true for almost all Steinhaus graphs. We also show that certain classes of subgraphs of vertex transitive graphs are first-order complete. Finally, we give a new class of higher-order axioms from which it follows that large subgraphs of specified type exist in almost all graphs.

The trajectory of the turning point is dense for almost all tent maps

1996 ◽  
Vol 16 (6) ◽  
pp. 1173-1183 ◽  
Author(s):  
Karen Brucks ◽  
Michal Misiurewicz
Keyword(s):  
Lebesgue Measure ◽  
Turning Point ◽  
Tent Map ◽  
Tent Maps ◽  
Almost All

AbstractWe prove that for almost every (with respect to the Lebesgue measure) a ∈ [√2, 2], the forward trajectory of the turning point of the tent map fa with slope a is dense in the interval of transitivity of fa.

Assessing Authentic Intellectual Work in Mathematics Tasks

2017 ◽  
pp. 176-196
Author(s):  
Lesly Yahaira Rodríguez Martínez ◽  
María Guadalupe Pérez Martínez ◽  
Adriana Mercado Salas
Keyword(s):  
Mixed Methods ◽  
Elementary School Teachers ◽  
Higher Order Thinking ◽  
Higher Order ◽  
Multiple Solution ◽  
Intellectual Work ◽  
Construction Of Knowledge ◽  
Authentic Intellectual Work ◽  
Mathematics Tasks ◽  
Almost All

This paper reports an analysis of the tasks included in the Mathematical Challenges book. The analysis was based on the proposals of the Authentic Intellectual Work (AIW). The purpose of the study focuses on assessing the potential of the mathematical challenges to promote in-depth and meaningful learning through the connection with different contexts, and other features including purpose, multiple-solution pathways, construction of knowledge and higher order thinking. Participants in this study were 3 elementary school teachers, 2 mathematics specialists and the authors of this paper; they assessed the Mathematical Challenges through a questionnaire based on specific rubrics. The study used a mixed methods approach. The analysis produced two main findings. First, challenges vary in their connections to students' lives according to the context they come from. Second, almost all mathematical challenges are related to the highest levels of others AIW criteria.

A Family of Generalized Riesz Products

1996 ◽  
Vol 48 (2) ◽  
pp. 302-315 ◽  
Author(s):  
A. H. Dooley ◽  
S. J. Eigen
Keyword(s):  
Lebesgue Measure ◽  
Spectral Measure ◽  
Probability Space ◽  
Rank One ◽  
Almost All ◽  
Riesz Products

AbstractGeneralized Riesz products similar to the type which arise as the spectral measure for a rank-one transformation are studied. A condition for the mutual singularity of two such measures is given. As an application, a probability space of transformations is presented in which almost all transformations are singular with respect to Lebesgue measure.

scholarly journals Approximation in higher-order Sobolev spaces and Hodge systems

2019 ◽  
Vol 276 (5) ◽  
pp. 1430-1478 ◽  
Author(s):  
Pierre Bousquet ◽  
Emmanuel Russ ◽  
Yi Wang ◽  
Po-Lam Yung
Keyword(s):  
Sobolev Spaces ◽  
Higher Order
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