1 citations · 2 across the 3 of their papers we have counts for
4 papers
Emerging Polynomial Growth Trends in COVID-19 Pandemic Data and Their Reconciliation with Compartment Based Models
Katarina Bodova, Richard Kollar
We study the reported data from the COVID-19 pandemic outbreak in January - May 2020 in 119 countries. We observe that the time series of active cases in individual countries (the…
Direct Characterization of Spectral Stability of Small Amplitude Periodic Waves in Scalar Hamiltonian Problems Via Dispersion Relation
Richard Kollár, Bernard Deconinck, Olga Trichtchenko
Various approaches to studying the stability of solutions of nonlinear PDEs lead to explicit formulae determining the stability or instability of the wave for a wide range of class…
Existence of traveling waves for the generalized FKPP equation
Kollár Richard, Novak Sebastian
Variation in genotypes may be responsible for differences in dispersal rates, directional biases, and growth rates of individuals. These traits may favor certain genotypes and enha…
Graphical Krein Signature Theory and Evans-Krein Functions
Richard Kollár, Peter D. Miller
Two concepts, very different in nature, have proved to be useful in analytical and numerical studies of spectral stability: (i) the Krein signature of an eigenvalue, a quantity usu…