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20 papers · 1 filter
The Bivariate Defective Gompertz Distribution Based on Clayton Copula with Applications to Medical Data
Marcos Vinicius de Oliveira Peres, Ricardo Puziol de Oliveira, Jorge Alberto Achcar +1
In medical studies, it is common the presence of a fraction of patients who do not experience the event of interest. These patients are people who are not at risk of the event or a…
Collective dynamics of stock market efficiency
Luiz G. A. Alves, Higor Y. D. Sigaki, Matjaz Perc +1
Summarized by the efficient market hypothesis, the idea that stock prices fully reflect all available information is always confronted with the behavior of real-world markets. Whil…
Generalized ZK Equation posed on a Half-Strip
Nikolai Larkin
An initial-boundary value problem for the generalized 2D Zakharov-Kuznetsov equation posed on the right half-strip is considered. Existence, uniqueness and the exponential decay ra…
Breaking unidirectional invasions jeopardizes biodiversity in spatial May-Leonard systems
D. Bazeia, B. F. de Oliveira, J. V. O. Silva +1
Non-transitive dominance and the resulting cyclic loop of three or more competing species provide a fundamental mechanism to explain biodiversity in biological and ecological syste…
Critical 2D Zakharov-Kuznetsov equation posed on a half-strip
Nikolai Larkin
An initial-boundary value problem for the critical generalized 2D Zakharov-Kuznetsov equation posed on a half-strip is considered. Existence, uniqueness and the exponential decay r…
Pattern formations driven by cyclic interactions: a brief review of recent developments
A. Szolnoki, B. F. de Oliveira, D. Bazeia
Lotka's seminal work (A.J. Lotka A., Proc. Natl. Acad. Sci. U.S.A. 6 (1920) 410) "on certain rhythmic relations'' is already one hundred years old, but the research activity about…