Multistability in a star network of Kuramoto-type oscillators with synaptic plasticity.
Sci Rep
; 11(1): 9840, 2021 05 10.
Article
in En
| MEDLINE
| ID: mdl-33972613
ABSTRACT
We analyze multistability in a star-type network of phase oscillators with coupling weights governed by phase-difference-dependent plasticity. It is shown that a network with N leaves can evolve into [Formula see text] various asymptotic states, characterized by different values of the coupling strength between the hub and the leaves. Starting from the simple case of two coupled oscillators, we develop an analytical approach based on two small parameters [Formula see text] and [Formula see text], where [Formula see text] is the ratio of the time scales of the phase variables and synaptic weights, and [Formula see text] defines the sharpness of the plasticity boundary function. The limit [Formula see text] corresponds to a hard boundary. The analytical results obtained on the model of two oscillators are generalized for multi-leaf star networks. Multistability with [Formula see text] various asymptotic states is numerically demonstrated for one-, two-, three- and nine-leaf star-type networks.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Type of study:
Prognostic_studies
Language:
En
Journal:
Sci Rep
Year:
2021
Document type:
Article
Affiliation country:
Lithuania
Publication country:
ENGLAND
/
ESCOCIA
/
GB
/
GREAT BRITAIN
/
INGLATERRA
/
REINO UNIDO
/
SCOTLAND
/
UK
/
UNITED KINGDOM