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36 papers · 1 filter
Derived tame local and two-point algebras
Viktor Bekkert, Yuriy Drozd, Vyacheslav Futorny
We determine derived representation type of complete finitely generated local and two-point algebras over an algebraically closed field.
Degenerate weakly nonlinear elastic plane waves
Włodzimierz Domański, Andrew N. Norris
Weakly nonlinear plane waves are considered in hyperelastic crystals. Evolution equations are derived at a quadratically nonlinear level for the amplitudes of quasi-longitudinal an…
Pairs of mutually annihilating operators
Vitalij M. Bondarenko, Tatiana G. Gerasimova, Vladimir V. Sergeichuk
Pairs (A,B) of mutually annihilating operators AB=BA=0 on a finite dimensional vector space over an algebraically closed field were classified by Gelfand and Ponomarev [Russian Mat…
Quasiminimality in mixed Tsirelson spaces
Antonis Manoussakis, Anna Maria Pelczar
We prove quasiminimality of the regular mixed Tsirelson spaces T[(S_n,θ_n)_n] with the sequence (\frac{θ_n}{θ^n})_n decreasing, where θ=\lim_n θ_n^{1/n}, and quasiminimality of all…
A model of subjective supply-demand: the maximum Boltzmann/Shannon entropy solution
Edward W. Piotrowski, Jan Sladkowski
We investigate activities that have different periods of duration. We define the profit intensity as a measure of this economic category. The profit intensity in a repeated trading…
Spontaneous clustering in theoretical and some empirical stationary processes
Tomasz Downarowicz, Yves Lacroix, Didier Léandri
In a stationary ergodic process, clustering is defined as the tendency of events to appear in series of increased frequency separated by longer breaks. Such behavior, contradicting…