Results 71 to 80 of about 38,571 (167)

σ-Continuous Functions and Related Cardinal Characteristics of the Continuum

open access: yesTatra Mountains Mathematical Publications, 2020
Abstract A function f : X → Y between topological spaces is called σ-continuous (resp. ̄σ-continuous) if there exists a (closed) cover {Xn } n ∈ ω of X such that for every n ∈ ω the restriction f ↾ Xn is continuous. By 𝔠
openaire   +2 more sources

Simple Cardinal Characteristics of the Continuum

open access: yes, 1994
The published version contains some typographical errors and was printed on a machine that failed to distinguish boldface and lightface capital Greek ...
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Identifying subtypes of longitudinal motor symptom severity trajectories in early Parkinson’s disease patients

open access: yesFrontiers in Neurology
BackgroundMotor symptoms of Parkinson’s disease (PD) patients affect their ability of daily activities. Identifying distinct trajectories of motor symptom progression in PD patients can facilitate long-term management.MethodsA total of 155 PD patients ...
Xiaozhou Xu   +14 more
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Cardinal Characteristics and Computability

open access: yes
Cardinal characteristics of the continuum represent the boundaries in size between the countable and the continuum with respect to certain properties of sets. They are often defined as the minimum sizes of families of reals that meet some criteria. Taking these families and considering their analogues in the setting of computability theory provides a ...
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Multiscale Edge Extraction Using the Fuzzy Rules

open access: yesJournal of Algorithms & Computational Technology, 2008
This paper proposes multiscale edge extraction using the fuzzy rules. Its cardinal idea is that edges can be gained usually via extracting large-amplitude parts of signal changes in neighboring pixels. However, it is very difficult to get a threshold for
Ruihua Lu, Ming Yang
doaj   +1 more source

HISTORICAL VIEW OF CARDINAL VOWELS IN TURKISH

open access: yesZeitschrift für die Welt der Türken, 2013
Turkish is a rich language in terms of presence of vowels. There are eight vowels that originated from the relationship between palatalité, aperture and labialité in terms of their characteristics in general Turkish. These are /a/, /e/, /ı/, /i/, /o, /ö/,
Fatih ÖZEK
doaj  

Multibacillary Leprosy Masquerading as Exfoliative Dermatitis

open access: yesIndian Journal of Dermatopathology and Diagnostic Dermatology
The clinical presentation of leprosy may mimic many medical, rheumatological, and neurological disorders, pose diagnostic dilemma and delay treatment.
Seema Rani   +2 more
doaj   +1 more source

COUNTABLY COMPACT EXTENSIONS AND CARDINAL CHARACTERISTICS OF THE CONTINUUM

open access: yesThe Journal of Symbolic Logic
Abstract In this paper, we show that the existence of certain first-countable compact-like extensions is equivalent to the equality between corresponding cardinal characteristics of the continuum. For instance, $\mathfrak b=\mathfrak s=\mathfrak c$ if and only if every regular first-countable space of weight
SERHII BARDYLA   +2 more
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Reductions Between Cardinal Characteristics of the Continuum

open access: yes, 1994
We discuss two general aspects of the theory of cardinal characteristics of the continuum, especially of proofs of inequalities between such characteristics. The first aspect is to express the essential content of these proofs in a way that makes sense even in models where the inequalities hold trivially (e.g., because the continuum hypothesis holds ...
openaire   +2 more sources

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