33 citations · 119 across the 21 of their papers we have counts for
21 papers
Impact of COVID-19 Pandemic on Energy Demand in Estonia
Juri Belikov, Jaan Kalda
The COVID-19 pandemic triggered a question of how to measure and evaluate adequacy of the applied restrictions. Available studies propose various methods mainly grouped to statisti…
Fluctuations of separation of trajectories in chaos and correlation dimension
Itzhak Fouxon, Siim Ainsaar, Jaan Kalda
We consider the cumulant generating function of the logarithm of the distance between two infinitesimally close trajectories of a chaotic system. Its long-time behavior is given by…
Detecting overlapping community structure: Estonian network of payments
Stephanie Rendón de la Torre, Jaan Kalda, Robert Kitt +1
Revealing the community structure exhibited by real networks is a fundamental phase towards a comprehensive understanding of complex systems beyond the local organization of their…
Fractal and multifractal analysis of complex networks: Estonian network of payments
Stephanie Rendón de la Torre, Jaan Kalda, Robert Kitt +1
Complex networks have gained much attention from different areas of knowledge in recent years. Particularly, the structures and dynamics of such systems have attracted considerable…
On the topologic structure of economic complex networks: Empirical evidence from large scale payment network of Estonia
Stephanie Rendón de la Torre, Jaan Kalda, Robert Kitt +1
This paper presents the first topological analysis of the economic structure of an entire country based on payments data obtained from Swedbank. This data set is exclusive in its k…
Turbulent mixing: matching real flows to Kraichnan flows
Siim Ainsaar, Mihkel Kree, Jaan Kalda
Majority of theoretical results regarding turbulent mixing are based on the model of ideal flows with zero correlation time. We discuss the reasons why such results may fail for re…