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Computability on Quasi-Polish Spaces [PDF]
, 2019 We investigate the effectivizations of several equivalent definitions of quasi-Polish spaces and study which characterizations hold effectively. Being a computable effectively open image of the Baire space is a robust notion that admits several characterizations. We show that some natural effectivizations of quasi-metric spaces are strictly stronger.
Hoyrup, Mathieu +3 more
openaire +4 more sources
Some properties related to the Cantor-Bendixson derivative on a Polish space [PDF]
, 2020 We show a necessary and sufficient condition for any ordinal number to be a Polish space. We also prove that for each countable Polish space, there exists a countable ordinal number that is an upper bound for the first component of the Cantor-Bendixson ...
Merino Toapanta, Andres Esteban
core +6 more sources
Noetherian Quasi-Polish Spaces
CoRR, 2016 info:eu-repo/semantics ...
Matthew de Brecht, Arno Pauly
openaire +5 more sources
Earth, Planets and Space, 2021 In geodesy, a key application of data from the Gravity Recovery and Climate Experiment (GRACE), GRACE Follow-On (GRACE-FO), and Satellite Laser Ranging (SLR) is an interpretation of changes in polar motion excitation due to variations in the Earth’s ...
Justyna Śliwińska +2 more
doaj +1 more source
Ionizing radiation resilience: how metabolically active lichens endure exposure to the simulated Mars atmosphere [PDF]
IMA FungusTo deepen our understanding of lichen adaptation and their potential to colonize extraterrestrial environments, we aimed to identify physiological/biochemical responses of selected lichen species in a metabolically active state to simulated Mars-like ...
Kaja Skubała +6 more
doaj +3 more sources
A Polish topology for the closed subsets of a Polish space [PDF]
Proceedings of the American Mathematical Society, 1991 Let ⟨ X , d ⟩
openaire +2 more sources
Polish Buenos Aires – Polish Traces in the Urban Space of the Past and Present [PDF]
, 2021 The beginnings of Polish mass emigration to Argentina date back to the end of the 19th century, but since then, several stages of the influx of Poles to the country on La Plata can be distinguished.
Seniów, Adrianna, Pielacińska, Nina
core +1 more source
Remote Sensing, 2020 From 2002 to 2017, the Gravity Recovery and Climate Experiment (GRACE) mission’s twin satellites measured variations in the mass redistribution of Earth’s superficial fluids, which disturb polar motion (PM).
Jolanta Nastula, Justyna Śliwińska
doaj +1 more source
Voyager 2 observation of the multifractal spectrum in the heliosphere and the heliosheath [PDF]
Nonlinear Processes in Geophysics, 2013 We look in detail at the multifractal scaling of the fluctuations in the interplanetary magnetic field strength as measured onboard Voyager 2 in the entire heliosphere and even in the heliosheath.
W. M. Macek, A. Wawrzaszek
doaj +1 more source
Concept and Design of Martian Far-IR ORE Spectrometer (MIRORES)
Remote Sensing, 2022 Sulfide ores are a major source of noble (Au, Ag, and Pt) and base (Cu, Pb, Zn, Sn, Co, Ni, etc.) metals and will, therefore, be vital for the self-sustainment of future Mars colonies. Martian meteorites are rich in sulfides, which is reflected in recent
Jakub Ciazela +19 more
doaj +1 more source