Results 11 to 20 of about 430,568 (269)
Restricted simultaneous Diophantine approximation [PDF]
We study the problem of Diophantine approximation on lines in $\mathbb{R}^d$ under certain primality restrictions.Comment: 16 pages.
Baier, Stephan, Ghosh, Anish
core +3 more sources
Simultaneous diophantine approximation [PDF]
AbstractUsing a method suggested by E. S. Barnes, it is shown that the simultaneous inequalities r(p — αr)2 < c, r(q — βr)2 < c have an infinity of integral solutions p, q, r (with r > 0), for arbitrary irrationals α and β, provided that c > 1/2.6394.
openaire +3 more sources
The Auxiliary Mass Method beyond the Local Potential Approximation [PDF]
We show that the evolution equation of the effective potential in the auxiliary mass method corresponds to a leading approximation of a certain series. This series is derived from an evolution equation of an effective action using a derivative expansion.
Aoki +36 more
core +3 more sources
New Generalization of -Best Simultaneous Approximation in Topological Vector Spaces
Let be a nonempty subset of a Hausdorff topological vector space , and let be a real-valued continuous function on . If for each , there exists such that , then is called -simultaneously proximal and is called -best simultaneous approximation for ...
Mahmoud Rawashdeh, Sarah Khalil
doaj +1 more source
Simultaneous Diophantine approximation
The simplest problems of Diophantine approximation relate to the approximation of a single irrational number 0 by rational numbers pjq, and the principal question is how small we can make the error 0 — pjq in relation to q for infinitely many approximations. It is well known that this question can be answered almost completely in terms of the continued
Davenport, H., Mahler, K.
openaire +2 more sources
Optimal Simultaneous Approximation via 𝒜-Summability
We present optimal convergence results for the mth derivative of a function by sequences of linear operators. The usual convergence is replaced by 𝒜-summability, with 𝒜 being a sequence of infinite matrices with nonnegative real entries, and the ...
Francisco Aguilera +2 more
doaj +1 more source
Algorithms for Simultaneous Padé Approximations [PDF]
ISSAC ...
Nielsen, Johan S. R., Storjohann, Arne
openaire +2 more sources
Simultaneous approximation for the Phillips operators
We study the simultaneous approximation properties of the well-known Phillips operators. We establish the rate of convergence of the Phillips operators in simultaneous approximation by means of the decomposition technique for functions of bounded ...
N. K. Govil +2 more
doaj +1 more source
A Modification of the Mixed Joint Universality Theorem for a Class of Zeta Functions
The property of zeta functions on mixed joint universality in the Voronin’s sense states that any two holomorphic functions can be approximated simultaneously with an accuracy of ε>0 by suitable vertical shifts of the pair consisting the Riemann and ...
Roma Kačinskaitė +1 more
doaj +1 more source
New Characterization for Nonlinear Weighted Best Simultaneous Approximation
This paper is concerned with the problem of a wide class of weighted best simultaneous approximation in normed linear spaces, and it establishes a new characterization result for the class of approximation by virtue of the notion of simultaneous regular ...
Xianfa Luo, Delin Wu, Jinsu He
doaj +1 more source

