We study the uniqueness theorems of meromorphic functions concerning differential polynomials sharing a nonzero polynomial IM, and obtain two theorems which will supplement two recent results due to X. M. Li and L. Gao.
The paper deals with a novel method of control system design which applies meromorphic transfer functions as models for retarded linear time delay systems. After introducing an auxiliary state model a finite-spectrum observer is designed to close a stabilizing state feedback. The observer finite spectrum is the key to implement a state feedback stabilization scheme and to apply the affine parametrization in controller design. On the basis of the so-called RQ-meromorphic functions an algebraic solution to the problem of time-delay system stabilization and control is presented that practically provides a finite spectrum assignment of the control loop.
This article is concerned with ideological basis of Romantic Slavic messianism, which it exploresby considering the thinking of Samo Bohdan Hroboň (1820–1894). In the introductorysection, the author recalls the genesis and development of the term ‘messianism’. Here shetakes it to mean a special utopia comprising conviction, faith (and not solely religious) in beingchosen, and seeing oneself as the vehicle for the historical task of saving the world. The articledefines in detail the scholarly concept of the Slavic literary messianism of Oskár Čepan(1925–1992), its changes, and its subsequent reflection in literary studies by Cyril Kraus, StanislavŠmatlák, Joanna Goszczyńska, and Rudolf Dupkala. The second part of the article considersHroboň’s works. Drawing on texts with a primarily aesthetic function, the author reconstructsthe ideology that form the basis of the texts, paying particular attention to the process ofmystical sacralization, which appears as the sanctification of the Slovak nation.
Zkoumáním, pozorováním a přemýšlením o Měsíci trávili lidé čas odpradávna. Přestože první člověk se po našem souputníkovi prošel již téměř před padesáti lety, naše chápání tohoto prostého prostředí je stále v počátcích a nedostatek experimentálních dat často doháníme počítačovými modely. Článek pojednává o našich představách o nabíjení měsíčního povrchu a také prachových zrnek na něm a nad ním., Watching and thinking about the Moon has been a popular subject for mankind for a long time. Despite the fact that the first human footprint on the lunar surface is more than fifty years old, our understanding of this rather simple environment is still poor and a lack of experimental data is often supported with computer models. The presented contribution deals with numerical simulations of charging of the lunar surface as well as with charging of dust grains attached to or levitating above the charged surface., Jiří Pavlů, Zdeněk Němeček, Jana Šafránková., and Obsahuje bibliografii