Articles with "extreme points" as a keyword



Extreme Points and Some Quaternion Valued Functions in the Unit Ball of $${\mathbb {R}}^3$$R3

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Published in 2018 at "Advances in Applied Clifford Algebras"

DOI: 10.1007/s00006-018-0848-9

Abstract: In this paper, we give a new definition of a class of quaternion function spaces, which will be called $$F(p,\alpha ,s;E)$$F(p,α,s;E)-type spaces. Then, we characterize quaternion $$\alpha $$α-Bloch functions by functions belonging to $$F(p,\alpha ,s;E)$$F(p,α,s;E)… read more here.

Keywords: quaternion; quaternion valued; points quaternion; unit ball ... See more keywords

$$C^*$$-Extreme Points of Positive Operator Valued Measures and Unital Completely Positive Maps

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Published in 2021 at "Communications in Mathematical Physics"

DOI: 10.1007/s00220-021-04245-1

Abstract: We study the quantum ($C^*$) convexity structure of normalized positive operator valued measures (POVMs) on measurable spaces. In particular, it is seen that unlike extreme points under classical convexity, $C^*$-extreme points of normalized POVMs on… read more here.

Keywords: unital completely; valued measures; operator valued; extreme points ... See more keywords

A Novel Approach Extracting Extreme Points Combining Multidirection Phase Superposition and Weighted Moment Diagram for Matching Multi-Modal Images

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Published in 2024 at "IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing"

DOI: 10.1109/jstars.2023.3325968

Abstract: This article proposed the novel approach of multimodel image matching based on the feature integration of multidirectional phase superposition and weighted moment diagrams to handle the matching problem of large contrast differences, lots of noises,… read more here.

Keywords: extreme points; phase superposition; weighted moment;
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Asymptotic farthest points and extreme points

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Published in 2018 at "Filomat"

DOI: 10.2298/fil1817875a

Abstract: Let X be a normed space, G a nonempty bounded subset of X and {x_n} a bounded sequence in X. In this article, we introduce and discuss the concept of asymptotic farthest points of {x_n} in G,… read more here.

Keywords: points extreme; farthest points; asymptotic farthest; extreme points ... See more keywords

A Novel Neural Network with the Ability to Express the Extreme Points Distribution Features of Higher Derivatives of Physical Processes

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Published in 2023 at "Applied Sciences"

DOI: 10.3390/app13116662

Abstract: Higher derivatives are important to interpret the physical process. However, higher derivatives calculated from measured data often deviate from the real ones because of measurement errors. A novel method for data fitting without higher derivatives… read more here.

Keywords: neural network; distribution features; points distribution; extreme points ... See more keywords
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Extreme points of the Besicovitch-Orlicz space of almost periodic functions equipped with Orlicz norm

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Published in 2021 at "Opuscula Mathematica"

DOI: 10.7494/opmath.2021.41.5.629

Abstract: In the present paper, we give criteria for the existence of extreme points of the Besicovitch-Orlicz space of almost periodic functions equipped with Orlicz norm. Some properties of the set of attainable points of the… read more here.

Keywords: space almost; space; besicovitch orlicz; extreme points ... See more keywords