Results 71 to 80 of about 3,779 (211)
Stability of fronts in the diffusive Rosenzweig–MacArthur model
Studies in Applied Mathematics, Volume 153, Issue 4, November 2024.Abstract We consider a diffusive Rosenzweig–MacArthur predator–prey model in the situation when the prey diffuses at a rate much smaller than that of the predator. In a certain parameter regime, the existence of fronts in the system is known: the underlying dynamical system in a singular limit is reduced to a scalar Fisher–KPP (Kolmogorov–Petrovski ...
Anna Ghazaryan +3 more
wiley +1 more source
Heteroclinic Dynamics of Localized Frequency Synchrony: Heteroclinic Cycles for Small Populations [PDF]
Journal of Nonlinear Science, 2019 Many real-world systems can be modeled as networks of interacting oscillatory units. Collective dynamics that are of functional relevance for the oscillator network, such as switching between metastable states, arise through the interplay of network structure and interaction.
openaire +3 more sources
Electronic Current Density Induced by Uniform Magnetic Fields in Clarenes
Chemistry – A European Journal, Volume 30, Issue 43, August 1, 2024.Calculations of the magnetic response are reported for few selected clarenes, the most stable isomers among cycloarenes, as identified by maximization of the number of Clar sextets, and tested computationally. Only some of the rings endowed with a Clar sextet show an exaltation of the diatropic ring current, as could have been expected based on ...
Guglielmo Monaco +3 more
wiley +1 more source
Money growth pegging, Taylor rule, status‐seeking behavior and the “spirit of capitalism”
The Manchester School, Volume 92, Issue 4, Page 313-340, July 2024.Abstract This paper analyzes the impact of “spirit of capitalism” on stationary welfare and stability properties of a one‐sector Ramsey economy, where the demand of money is motivated by a cash‐in‐advance constraint on consumption expenditures. Preferences are defined over consumption and capital stock. There is a monetary authority that follows either
Antoine Le Riche, Antoine Parent
wiley +1 more source
, 2000 A replicator equation with mutation processes is numerically studied. Without any mutations, two characteristics of the replicator dynamics are known: an exponential divergence of the dominance period, and hierarchical orderings of the attractors.
Chawanya T. +11 more
core +2 more sources
Ecology Letters, Volume 27, Issue 4, April 2024.Modern coexistence theory (MCT) typically focuses on two‐species competition or communities with particular symmetry. Here we study the three‐species Lotka–Volterra competition model, including both pairwise coexistence and founder control. We expand MCT by proposing a third quantity beyond niche and fitness differences: cyclic asymmetry, which can ...
Ravi Ranjan +2 more
wiley +1 more source
Continuation of connecting orbits in 3D-ODEs: (I) Point-to-cycle connections
, 2007 We propose new methods for the numerical continuation of point-to-cycle connecting orbits in 3-dimensional autonomous ODE's using projection boundary conditions.
Afraimovich V. S. +5 more
core +4 more sources
Intransitivity in plant–soil feedbacks is rare but is associated with multispecies coexistence
Ecology Letters, Volume 27, Issue 3, March 2024.Plant–soil feedbacks (PSFs) impose similarly strong fitness differences and stabilizing‐destabilizing forces, most often impeding species coexistence. At the community level, PSFs alone do not explain coexistence in species‐rich communities. A topological analysis of the PSF interactions network shows that full intransitivity would be rare in the ...
Mariona Pajares‐Murgó +8 more
wiley +1 more source
Ecology, Volume 105, Issue 2, February 2024.Abstract A growing body of literature recognizes that pairwise species interactions are not necessarily an appropriate metaphorical molecule of community ecology. Two examples are intransitive competition and nonlinear higher‐order effects. While these two processes have been discussed extensively, the explicit analysis of how the two of them behave ...
John Vandermeer, Ivette Perfecto
wiley +1 more source
Relaxation Oscillation in SEIR Epidemic Models with the Intrinsic Growth Rate
Complexity, Volume 2024, Issue 1, 2024.The periodic oscillation transmission of infectious diseases is widespread, deep understanding of this periodic pattern and exploring the generation mechanism, and identifying the specific factors that lead to such periodic outbreaks, which are of very importanceto predict and control the spread of infectious diseases.
Yingying Zhang +3 more
wiley +1 more source