Results 51 to 60 of about 5,856,460 (293)
Structured Low-rank Approximation as a Rational Function Minimization [PDF]
, 2012 Many problems of system identification, model reduction and signal processing can be posed and solved as a structured low-rank approximation problem (SLRA).
Markovsky, Ivan, Usevich, Konstantin
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Numerous international studies have reported declines in new cancer diagnoses, delayed diagnoses and disruptions in cancer treatment following the implementation of COVID‐19 pandemic public health measures, raising concerns that these effects may ultimately contribute to increased cancer mortality.
Friederike Erdmann +8 more
wiley +1 more source
Preperiodic points for rational functions defined over a rational function field of characteristic zero [PDF]
, 2015 Let k be an algebraically closed field of characteristic zero. Let K be the rational function field K=k(t). Let ϕ be a nonisotrivial rational function in K(z).
Canci, Jung Kyu
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On the periodic zeta-function with rational parameter
Lietuvos Matematikos Rinkinys, 2011 We obtain an asymptotic formula with estimated error term for the fourth power moment of the periodic zeta-function with rational parameter.
Sondra Černigova
doaj +1 more source
Counting with rational functions
Theoretical Computer Science, 1986 The authors characterize a special class of rational functions from a free monoid \(A^*\) into a cyclic free monoid \(t^*\). A semaphore is a subset H of \(A^*\) such that no word in H is a (connected) factor of another word in H. A partial function \(\alpha\) : \(A^*\to t^*\) is called a counting function if there exist \(n\geq 1\), rational ...
Christian Choffrut +1 more
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Inverses of Rational Functions
Acta Cybernetica, 2022 We consider the numerical construction of inverses for a class of rational functions. We propose two inverse algorithms, which can be used to simultaneously identify every zero of a rational function or polynomial. In the first case, we propose a generalization of an inverse algorithm based on our previous work and specify a class of rational functions,
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Taylor Polynomials of Rational Functions
Acta Mathematica Vietnamica, 2023 A Taylor variety consists of all fixed order Taylor polynomials of rational functions, where the number of variables and degrees of numerators and denominators are fixed. In one variable, Taylor varieties are given by rank constraints on Hankel matrices. Inversion of the natural parametrization is known as Padé approximation. We study the dimension and
Conca, Aldo +3 more
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Referral Patterns and Diagnostic Timeliness in Pediatric Cancer: A Hospital‐Based Study in Indonesia
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Timely diagnosis and treatment are critical for improving survival among children with cancer. In low‐ and middle‐income countries (LMICs), delays are common and may be influenced by fragmented referral pathways and diagnostic limitations.
Nur Melani Sari +5 more
wiley +1 more source
Rational Function Interpolation of Electromagnetic Transfer Functions of High-Speed Interconnect Systems from Discrete Time-Domain and Frequency-Domain Data [PDF]
, 2009 Item marked as restricted to the 'Administrator' Group (id=1) by Timothy Donohue (tdonohue@illinois.edu) on 2009-06-04T16:03:37Z Item is restricted until 2010-06-04T16:03:37ZWe present new methodologies to generate rational function approximations of ...
Moon, Se-jung
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background and Aims Infant bone and soft tissue neoplasms present distinct clinical challenges and lack large‐scale data to inform treatment decisions. This study aims to characterize bone and soft tissue neoplasms in infants in Canada and to compare their outcomes with those of older pediatric patients.
Samuel Sassine +21 more
wiley +1 more source