Results 41 to 50 of about 133,599 (236)

A complete solution of Markov's problem on connected group topologies [PDF]

open access: yes, 2015
Every proper closed subgroup of a connected Hausdorff group must have index at least c, the cardinality of the continuum. 70 years ago Markov conjectured that a group G can be equipped with a connected Hausdorff group topology provided that every ...
Dikranjan, Dikran, Shakhmatov, Dmitri
core   +2 more sources

Discrete Hausdorff transformations [PDF]

open access: yesProceedings of the American Mathematical Society, 1973
Let K K be a complex valued measurable function on ( 0 , 1 ] (0,1] such that ∫ 0 1 t − 1 / p
openaire   +1 more source

Peroxynitrous Acid Generated In Situ from Acidified H2O2 and NaNO2. A Suitable Novel Antimicrobial Agent?

open access: yesAntibiotics, 2021
Peroxynitrite (ONOO−) and peroxynitrous acid (ONOOH) are known as short acting reactive species with nitrating and oxidative properties, which are associated with their antimicrobial effect.
Martina Balazinski   +3 more
doaj   +1 more source

Hausdorff ultrafilters [PDF]

open access: yesProceedings of the American Mathematical Society, 2006
We give the name Hausdorff to those ultrafilters that provide ultrapowers whose natural topology ( S S -topology) is Hausdorff, e.g. selective ultrafilters are Hausdorff. Here we give necessary and sufficient conditions for product ultrafilters to be Hausdorff.
DI NASSO, MAURO, FORTI, MARCO
openaire   +3 more sources

Seaweed and Dendritic Growth in Unsaturated Fatty Acid Monolayers

open access: yesMembranes, 2022
The lateral movement in lipid membranes depends on their diffusion constant within the membrane. However, when the flux of the subphase is high, the convective flow beneath the membrane also influences lipid movement.
Florian Gellert   +3 more
doaj   +1 more source

Continuous images of Cantor's ternary set

open access: yes, 2013
The Hausdorff-Alexandroff Theorem states that any compact metric space is the continuous image of Cantor's ternary set $C$. It is well known that there are compact Hausdorff spaces of cardinality equal to that of $C$ that are not continuous images of ...
Dreher, Fabian, Samuel, Tony
core   +1 more source

Characterization of the Mycoremediation of n-Alkanes and Branched-Chain Alkanes by Filamentous Fungi from Oil-Polluted Soil Samples in Kazakhstan

open access: yesMicroorganisms, 2023
For decades, researchers have focused on containing terrestrial oil pollution. The heterogeneity of soils, with immense microbial diversity, inspires them to transform pollutants and find cost-effective bioremediation methods.
Mariam Gaid   +6 more
doaj   +1 more source

Hausdorff and packing dimension of fibers and graphs of prevalent continuous maps [PDF]

open access: yes, 2015
The notions of shyness and prevalence generalize the property of being zero and full Haar measure to arbitrary (not necessarily locally compact) Polish groups.
Balka, Richárd   +2 more
core   +2 more sources

On The Hidden Structure of Odd Numbers and Its Consequences for the Riemann Hypothesis

open access: yesJambura Journal of Mathematics
The Riemann hypothesis remains unconfirmed or invalidated to this day, although local verifications on the calculation of its zeros have never found it faulty.
Junior Mukomene
doaj   +1 more source

Turn Around Freezing: Community-Living Turning Behavior in People with Parkinson’s Disease

open access: yesFrontiers in Neurology, 2018
Difficulty in turning while walking is common among patients with Parkinson’s disease (PD). This difficulty often leads to significant disability, falls, and loss of function; moreover, turning is a common trigger for freezing of gait (FoG).
Martina Mancini   +5 more
doaj   +1 more source

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