Results 21 to 30 of about 7,422,401 (338)
A Normal Form for Spider Diagrams of Order [PDF]
, 2014 We develop a reasoning system for an Euler diagram based visual logic, called spider diagrams of order. We de- fine a normal form for spider diagrams of order and provide an algorithm, based on the reasoning system, for producing diagrams in our normal ...
Aidan Delaney +12 more
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Bogdanov-Takens bifurcations in the enzyme-catalyzed reaction comprising a branched network
Mathematical Biosciences and Engineering, 2017 There have been some results on bifurcations of codimension one (such as saddle-node, transcritical, pitchfork) and degenerate Hopf bifurcations for an enzyme-catalyzed reaction system comprising a branched network but no further discussion for ...
Qiuyan Zhang +2 more
doaj +1 more source
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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Mathematical Biosciences and Engineering, 2022 Since the COVID-19 outbreak began in early 2020, it has spread rapidly and threatened public health worldwide. Vaccination is an effective way to control the epidemic. In this paper, we model a SAIM equation.
Xinyu Liu, Zimeng Lv, Yuting Ding
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A normal form for excitable media
, 2006 We present a normal form for travelling waves in one-dimensional excitable media in form of a differential delay equation. The normal form is built around the well-known saddle-node bifurcation generically present in excitable media.
Georg A. Gottwald +4 more
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Resonant normal form and asymptotic normal form behavior in magnetic bottle Hamiltonians
, 2015 We consider normal forms in `magnetic bottle' type Hamiltonians of the form $H=\frac{1}{2}(\rho^2_\rho+\omega^2_1\rho^2) +\frac{1}{2}p^2_z+hot$ (second frequency $\omega_2$ equal to zero in the lowest order).
Contopoulos, G. +2 more
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Periodic and torus motions of a two-degree-of-freedom dry friction vibration system
Frontiers in Physics, 2023 Vibration induced by dry friction is ubiquitous in various engineering fields. To explore the vibration characteristics for further studies and/or controls, it is of great theoretical and practical significances to investigate the non-linear dynamic ...
Yong Guo
doaj +1 more source
Normal Form Nested Programs [PDF]
Fundamenta Informaticae, 2008 Disjunctive logic programming under the answer set semantics (DLP, ASP) has been acknowledged as a versatile formalism for knowledge representation and reasoning during the last decades. Lifschitz, Tang, and Turner have introduced an extended language of DLP, called Nested Logic Programming (NLP), in 1999 [12].
ANNAMARIA BRIA +2 more
openaire +4 more sources
Justification for inclusion dependency normal form [PDF]
, 1999 Functional dependencies (FDs) and inclusion dependencies (INDs) are the most fundamental integrity constraints that arise in practice in relational databases.
Levene, Mark, Vincent, Millist W.
core +3 more sources
The Normal Form Theorem around Poisson Transversals
, 2016 We prove a normal form theorem for Poisson structures around Poisson transversals (also called cosymplectic submanifolds), which simultaneously generalizes Weinstein's symplectic neighborhood theorem from symplectic geometry and Weinstein's splitting ...
Frejlich, Pedro, Marcut, Ioan
core +1 more source