Results 21 to 30 of about 3,325,271 (304)

Multipartite Rational Functions

open access: yesDocumenta Mathematica, 2020
Consider a tensor product of free algebras over a field \Bbbk , the so-called multipartite free algebra \mathcal{A}=\Bbbk<X^{(1)}> \otimes\cdots\otimes\Bbbk<X^{(G)}>
Klep, Igor   +2 more
openaire   +3 more sources

Equiconvergence of some sequences of rational functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1992
The phenomenon of equiconvergence was first observed by Walsh for two sequences of polynomial interpolants to a class of functions. Here we obtain analogues of Yuanren's results for Walsh equiconvergence using rational functions as in Saff and Sharma. We
M. A. Bokhari, A. Sharma
doaj   +1 more source

Rational function decomposition [PDF]

open access: yesProceedings of the 1991 international symposium on Symbolic and algebraic computation, 1991
This paper presents a polynomial time algorithm for determining whether a given univariate rational function over an arbitrary field is the composition of two rational functions over that field, and finds them if so.
openaire   +1 more source

Rational Hypergeometric Functions [PDF]

open access: yesCompositio Mathematica, 2001
Multivariate hypergeometric functions associated with toric varieties were introduced by Gel'fand, Kapranov and Zelevinsky. Singularities of such functions are discriminants, that is, divisors projectively dual to torus orbit closures. We show that most of these potential denominators never appear in rational hypergeometric functions.
Cattani, E, Dickenstein, A, Sturmfels, B
openaire   +2 more sources

Rational maps with real multipliers [PDF]

open access: yes, 2009
Let f be a rational function such that the multipliers of all repelling periodic points are real. We prove that the Julia set of such a function belongs to a circle. Combining this with a result of Fatou we conclude that whenever J(f) belongs to a smooth
Eremenko, A   +5 more
core   +1 more source

Synthesis of Computable Regular Functions of Infinite Words [PDF]

open access: yesLogical Methods in Computer Science, 2022
Regular functions from infinite words to infinite words can be equivalently specified by MSO-transducers, streaming $\omega$-string transducers as well as deterministic two-way transducers with look-ahead.
V. Dave, E. Filiot, S. Krishna, N. Lhote
doaj   +1 more source

MATRICES OF RATIONAL FUNCTIONS [PDF]

open access: yesBulletin of the Australian Mathematical Society, 1974
The properties of the degree of a matrix of rational functions are obtained in a simplified way, which enables them to be generalised to matrices whose elements are not necessarily rational functions. On the basis of these results a theory of realisations is developed, which similarly generalises the theory of state space realisations of a matrix of ...
openaire   +2 more sources

Singular integral operators associated to curves with rational components [PDF]

open access: yes, 2008
We prove L-p(R-n),1 < p < infinity, bounds for[GRAPHICS]and[GRAPHICS]where R-j(t) = P-j(t)/Q(j)(t),j = 1,2...,n, are rational functions. Our bounds depend only on the degrees of the polynomials P-j, Q(j) and, in particular, they do not depend on ...
Folch-Gabayet, Magali, Wright, James
core   +1 more source

Reconstructing rational functions with FireFly [PDF]

open access: yesComputer Physics Communications, 2020
Abstract We present the open-source C++ library FireFly for the reconstruction of multivariate rational functions over finite fields. We discuss the involved algorithms and their implementation. As an application, we use FireFly in the context of integration-by-parts reductions and compare runtime and memory consumption to a fully algebraic ...
Jonas Klappert, Fabian Lange
openaire   +2 more sources

The integral of 2- refined rational neutrosophic functions [PDF]

open access: yesNeutrosophic Sets and Systems
The main objective of this paper is to study the integral of 2- refined rational neutrosophic functions, by providing direct rules that make it easy for us to find the integral of 2- refined rational neutrosophic functions, where the division of refined ...
Iqbal Ahmed Musa , Yaser Ahmad Alhasan
doaj   +1 more source

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