Results 11 to 20 of about 148,619 (245)
Mathematics, 2023 In this paper, we study a differential operator of parabolic type with a variable and unbounded coefficient, defined on an infinite strip. Sufficient conditions for the existence and compactness of the resolvent are established, and an estimate for the ...
Mussakan Muratbekov +2 more
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Approximating the Bundled Crossing Number
Journal of Graph Algorithms and Applications, 2022 Bundling crossings is a strategy which can enhance the readability of graph drawings. In this paper we consider good drawings, i.e., we require that any two edges have at most one common point which can be a common vertex or a crossing. Our main result is that there is a polynomial-time algorithm to compute an 8-approximation of the bundled ...
Arroyo, Alan, Felsner, Stefan
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Approximation numbers of composition operators on Hp
Concrete Operators, 2015 give estimates for the approximation numbers of composition operators on the Hp spaces, 1 ≤ p < ∞
Li Daniel +2 more
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The Arithmetic Operator of Fuzzy Regular Prismoid Numbers and Its Application to Fuzzy Risk Analysis
International Journal of Computational Intelligence Systems, 2021 We devote to study the arithmetic operator of fuzzy regular prismoid numbers as well as the degree of similarity between fuzzy regular prismoid numbers, and then the arithmetic operator and the degree of similarity are applied in risk analysis.
Shexiang Hai
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False Approximations of the Approximate Number System?
PLoS ONE, 2011 Prior research suggests that the acuity of the approximate number system (ANS) predicts future mathematical abilities. Modelling the development of the ANS might therefore allow monitoring of children's mathematical skills and instigate educational intervention if necessary.
Gebuis, T., Van der Smagt, M.J.
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Pre-Quasi Simple Banach Operator Ideal Generated by s−Numbers
Journal of Function Spaces, 2020 Let E be a weighted Nakano sequence space or generalized Cesáro sequence space defined by weighted mean and by using s−numbers of operators from a Banach space X into a Banach space Y.
Awad A. Bakery, Afaf R. Abou Elmatty
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ALTERNATIVE PROOF OF THE INFINITUDE PRIMES AND PRIME PROPERTIES
Barekeng, 2023 Prime numbers is one of kind number that have many uses, one of which is cryptography. The uniqueness of prime numbers in their divisors and distributions causes prime numbers to be widely used in digital security systems. In number theory, one of famous
Dinni Rahma Oktaviani +2 more
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Dirichlet Uniformly Well-approximated Numbers [PDF]
International Mathematics Research Notices, 2018 Abstract Fix an irrational number θ. For a real number τ > 0, consider the numbers y satisfying that for all large number Q, there exists an integer 1 ≤ n ≤ Q, such that ∥nθ − y∥ < Q−τ, where ∥⋅∥ is the distance of a real number to its nearest integer.
Kim, Dong Han, Liao, Lingmin
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Characteristic approximation properties of quadratic irrationals
International Journal of Mathematics and Mathematical Sciences, 1978 Some characteristic approximation properties of quadratic irrationals are studied in this paper. It is shown that the limit points of the sequence δn form a subset C(x), and D(x) can be generated from C(x) in a relatively simple way.
W. B. Jurkat, A. Peyerimhoff
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ON MULTIPLICATIVELY BADLY APPROXIMABLE NUMBERS [PDF]
Mathematika, 2012 22 ...
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