Results 31 to 40 of about 14,686,178 (292)
On the generic nonexistence of first integrals [PDF]
Proceedings of the American Mathematical Society, 1986 The property of having no C n {C^n}
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The Global Dynamics of the Painlevé–Gambier Equations XVIII, XXI, and XXII
MathematicsIn this paper, we describe the global dynamics of the Painlevé–Gambier equations numbered XVIII: x″−(x′)2/(2x)−4x2=0, XXI: x″−3(x′)2/(4x)−3x2, and XXII: x″−3(x′)2/(4x)+1=0.
Jie Li, Jaume Llibre
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Task-First or Context-First? Tool Integration Revisited [PDF]
2009 IEEE/ACM International Conference on Automated Software Engineering, 2009 If software engineering tools are not "properly integrated", they can reduce engineers' productivity. Associating and retrieving information scattered across the tools become unsystematic and inefficient. Our work provides empirical evidence on what is a "poor" and a "proper" tool integration, focusing on practitioners' perspectives.
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GRB 021125: The first GRB imaged by INTEGRAL [PDF]
Astronomy & Astrophysics, 2003 4 pages, 5 figures.
Malaguti, G. +14 more
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On the dynamics of the autonomous Duffing–Holmes oscillator
Nonlinear AnalysisThe autonomous Duffing–Holmes oscillator ẋ = y, ẏ = x – x3 + by – kz, ż = w(y – z), depending on the three parameters b, k, and w, has been studied previously by several authors who showed that for certain parameter values, it exhibits chaotic ...
Érika Diz-Pita +2 more
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Liouvillian first integrals of differential equations [PDF]
Transactions of the American Mathematical Society, 1989 Liouvillian functions are functions that are built up from rational functions using exponentiation, integration, and algebraic functions. We show that if a system of differential equations has a generic solution that satisfies a liouvillian relation, that is, there is a liouvillian function of several variables vanishing on the ...
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Elementary first integrals of differential equations [PDF]
Transactions of the American Mathematical Society, 1981 It is not always possible and sometimes not even advantageous to write the solutions of a system of differential equations explicitly in terms of elementary functions. Sometimes, though, it is possible to find elementary functions which are constant on solution curves, that is, elementary first integrals. These first integrals allow one to occasionally
Myra Jean Prelle, Michael F. Singer
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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
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VERTICES IN A SCALAR-GRAVITY SYSTEM IN THE TELEPARALLEL GRAVITY THEORY [PDF]
, 2014 We consider a scalar field interacting gravitationally in teleparallel gravity theory. In this theory, the gravity is defined as a translational gauge field and thus gravita- tional interaction can be introduced through a minimal coupling prescription as
Ming, Kian, Triyanta, Triyanta
core
Exact Solutions for Strong Nonlinear Oscillators with Linear Damping
MathematicsThis paper presents the derivation of an exact solution for a damped nonlinear oscillator of arbitrary order (both integer and non-integer). A coefficient relationship was defined under which such a solution exists. The analytical procedure was developed
Livija Cveticanin
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