Results 11 to 20 of about 12,258 (256)

Time Dependencies Between Tectonic Activity of Świebodzice Depression (SW Poland) and Seismic Activity in Poland and Czech Mining Regions [PDF]

open access: yesE3S Web of Conferences, 2019
Since the 1970-ties, large azimuth changes in the equilibrium of quartz horizontal pendulums have been irregularly registered in the Geodynamic Laboratory in Książ. However, azimuth changes of the pendulums did not correlate with meteorological phenomena
Kaczorowski Marek   +4 more
doaj   +1 more source

Polish spaces of Banach spaces

open access: yesForum of Mathematics, Sigma, 2022
AbstractWe present and thoroughly study natural Polish spaces of separable Banach spaces. These spaces are defined as spaces of norms, respectively pseudonorms, on the countable infinite-dimensional rational vector space. We provide an exhaustive comparison of these spaces with admissible topologies recently introduced by Godefroy and Saint-Raymond and
Marek Cúth   +3 more
openaire   +3 more sources

GREY SUBSETS OF POLISH SPACES [PDF]

open access: yesThe Journal of Symbolic Logic, 2015
AbstractWe develop the basics of an analogue of descriptive set theory for functions on a Polish space X. We use this to define a version of the small index property in the context of Polish topometric groups, and show that Polish topometric groups with ample generics have this property.
Itaï Ben Yaacov, Julien Melleray
openaire   +3 more sources

Investigations of Flaring Plasma Parameters during an M-class Flare Using the Differential Evolution Method and XSM/Chandrayaan-2 Observations

open access: yesThe Astrophysical Journal Letters, 2023
We employ the differential evolution (DE) method to analyze observations from the Solar X-Ray Monitor on board the Chandrayaan-2 spacecraft. DE belongs to the family of evolutionary algorithms that find solutions using mechanisms inspired by biological ...
Anna Kępa   +4 more
doaj   +1 more source

Impedance Control Using Selected Compliant Prismatic Joint in a Free-Floating Space Manipulator

open access: yesAerospace, 2022
The success of space missions like capture-and-deorbit or capture-and-service relies on the ability of the capturing satellite to establish a stable mechanical connection by its gripping tool with the object being intercepted.
Piotr Palma, Karol Seweryn, Tomasz Rybus
doaj   +1 more source

Constructing the Space of Valuations of a Quasi-Polish Space as a Space of Ideals [PDF]

open access: yes, 2022
We construct the space of valuations on a quasi-Polish space in terms of the characterization of quasi-Polish spaces as spaces of ideals of a countable transitive relation.
de Brecht, Matthew
core   +1 more source

Recursive Polish spaces

open access: yesArchive for Mathematical Logic, 2023
AbstractThis paper is concerned with the proper way to effectivize the notion of a Polish space. A theorem is proved that shows the recursive Polish space structure is not found in the effectively open subsets of a space $${\mathcal {X}}$$ X , and we explore strong evidence that the effective structure is instead ...
openaire   +2 more sources

Analyses of zonal atmospheric excitation functions and their correlation with polar motion excitation functions [PDF]

open access: yesAnnales Geophysicae, 1997
The atmospheric influence on the Earth's, rotation can be described by the effective atmospheric angular momentum (EAAM) functions. In this study we focus on the analysis of short period variations of the equatorial components of the zonal EAAM ...
J. Nastula, W. Kosek, B. Kolaczek
doaj   +1 more source

Polish attitudes to the use of English and other languages in the Polish public space [PDF]

open access: yes, 2022
In the post-war era, Poland has been viewed as a homogeneous country both culturally and linguistically. It has not, however, remained immune to the developments of globalization, which has also been reflected in the linguistic developments of the ...
Dąbrowska, Marta
core   +1 more source

GOVSATCOM makes EU stronger on security and defence

open access: yesSecurity and Defence Quarterly, 2020
Objectives Publication identifies the meaning of Governmental Satellite Communication Govsatcom and presents a hypothesis related to the demand for this type of satellite communication. It describes engagement of main involved institutions i.e. European
Rafał Borek   +2 more
doaj   +1 more source

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