Results 31 to 40 of about 10,864,024 (305)
Normal forms for symplectic matrices [PDF]
Portugaliae Mathematica, 2014 We give a self contained and elementary description of normal forms for symplectic matrices, based on geometrical considerations. The normal forms in question are expressed in terms of elementary Jordan matrices and integers with values in \{ -1,0,1\}
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Pediatric Blood &Cancer, EarlyView.ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider +15 more
wiley +1 more source
Applying the Averaging Principle to a Logistic Equation with Rapidly Oscillating Delay
Моделирование и анализ информационных систем, 2014 The problem about the local dynamics of the logistic equation with rapidly oscillating time-periodic piecewise constant coefficient of delay was considered. It was shown that the averaged equation is a logistic equation with two delays.
N. D. Bykova, E. V. Grigorieva
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Normal forms in function fields [PDF]
Proceedings of the international symposium on Symbolic and algebraic computation, 1990 We consider function fields of functions of one variable augmented by the binary operation of composition of functions. It is shown that the straightforward axiomatization of this concept allows the introduction of a normal form for expressions denoting elements in such fields. While the description of this normal form seems relatively intuitive, it is
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Loneliness is associated with adverse physical and mental health outcomes and remains understudied in children and adolescents undergoing cancer therapy. Pediatric oncology patients may be at increased risk due to medical isolation and disruption of social networks.
Charlotte N. Stahlfeld +5 more
wiley +1 more source
Calculating Lyapunov Value for the Logistic Equation with Rapidly Oscillating Delay
Моделирование и анализ информационных систем, 2014 We consider the local dynamic of the logistic equation with rapidly oscillating timeperiodic piecewise constant or piecewise linear coefficient of delay.
N. D. Bykova
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Nonlinear Analysis, 2022 In this paper, we extend a Leslie–Gower-type predator–prey system with ratio-dependent Holling III functional response considering the cost of antipredator defence due to fear.
Hongyu Chen, Chunrui Zhang
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Central Nervous System Tumors Among Infants in Canada: A Report From CYP‐C
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Central nervous system (CNS) tumors in infants are rare, pose unique clinical challenges, and lack large‐scale evidence‐based data to guide management. This study seeks to describe CNS tumors in Canadian infants and to compare their outcomes with those of older children.
Samuel Sassine +17 more
wiley +1 more source
A verified algorithm for computing the Smith normal form of a matrix [PDF]
, 2020 This work presents a formal proof in Isabelle/HOL of an algorithm to transform a matrix into its Smith normal form, a canonical matrix form, in a general setting: the algorithm is parameterized by operations to prove its existence over elementary divisor
José Divasón
core +1 more source
Oscillations in Arrays of Nonlinear Elements in the Scott Experiment
Моделирование и анализ информационных систем, 2015 Bifurcation analysis of dynamic system modeling the array of coupled ocillators in the experience of Scott are presented. The non-resonant cases are considered.
A. S. Bobok, S. D. Glyzin
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