Search Results - "Bella, Angelo"
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On some questions on selectively highly divergent spaces
Published in Applied general topology (02-04-2024)“…A topological space X is selectively highly divergent (SHD) if for every sequence of non-empty open sets { Un : n ∈ ω } of X, we can find xn ∈ Un such that the…”
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Few remarks on maximal pseudocompactness
Published in Applied general topology (01-01-2018)“…A pseudocompact space is maximal pseudocompact if every strictly finer topology is no longer pseudocompact. The main result here is a counterexample which…”
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Antimicrobial peptide capsids of de novo design
Published in Nature communications (22-12-2017)“…The spread of bacterial resistance to antibiotics poses the need for antimicrobial discovery. With traditional search paradigms being exhausted, approaches…”
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CREIM: Coffee Ring Effect Imaging Model for Monitoring Protein Self-Assembly in Situ
Published in The journal of physical chemistry letters (05-10-2017)“…Protein self-assembly is fundamental to nanotechnology. Self-assembling structures are produced under static in vitro conditions typically forming over hours…”
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A disjointly tight irresolvable space
Published in Applied general topology (01-10-2020)“…In this short note we prove the existence (in ZFC) of a completely regular countable disjointly tight irresolvable space by showing that every sub-maximal…”
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A note on rank 2 diagonals
Published in Applied general topology (01-01-2020)“…We solve two questions regarding spaces with a (Gδ)-diagonal of rank 2. One is a question of Basile, Bella and Ridderbos about weakly Lindelöf spaces with a…”
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A non-discrete space X with Cp(X) Menger at infinity
Published in Applied general topology (01-04-2019)“…In a paper by Bella, Tokgös and Zdomskyy it is asked whether there exists a Tychonoff space X such that the remainder of Cp(X) in some compactification is…”
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Analysis of Elastic Nonlinearity Using Continuous Waves: Validation and Applications
Published in Applied sciences (01-12-2019)“…The nonlinear elastic response of consolidated granular or damaged materials is the result of the combination of nonlinear attenuation and velocity, coupled…”
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Compactifications of a Pixley–Roy hyperspace
Published in Topology and its applications (01-12-2015)“…For a Hausdorff space X, let PR(X) be the Pixley–Roy hyperspace of X. Dow and Moore [10, Proposition 2.13] noted that no compactification of PR(2ω) has…”
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When is a space Menger at infinity?
Published in Applied general topology (01-01-2015)“…We try to characterize those Tychonoff spaces X such that $\beta X\setminus X$ has the Menger property…”
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Sequential + separable vs sequentially separable and another variation on selective separability
Published in Open mathematics (Warsaw, Poland) (2013)Get full text
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A common extension of Lindelöf, H-closed and ccc
Published in Topology and its applications (01-12-2021)“…The inequality |X|≤2χ(X) has been proved to be true for Lindelöf spaces (Arhangel'skiĭ, 1969), H-closed spaces (Dow-Porter, 1982) and ccc spaces (Hajnal-Juhász…”
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Exploiting Slow Dynamics Effects for Damage Detection in Concrete
Published in Frontiers in built environment (02-06-2020)“…Nonlinear ultrasonic techniques have been developed over the last decades to detect the presence of damage in materials of interest in the field of civil…”
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Observations on some cardinality bounds
Published in Topology and its applications (01-09-2017)“…We try to find a common extension of two cardinal inequalities for Lindelöf spaces. Using an estimate of the number of Gδ points due to Balogh, we improve a…”
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On the cardinality of almost discretely Lindelöf spaces
Published in Monatshefte für Mathematik (01-06-2018)“…A space is said to be almost discretely Lindelöf if every discrete subset can be covered by a Lindelöf subspace. Juhász et al. (Weakly linearly Lindelöf…”
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Remarks on the finite derived set property
Published in Applied general topology (01-04-2005)“…The finite derived set property asserts that any infinite subset of a space has an infinite subset with only finitely many accumulation points. Among other…”
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Correction to: Upper bounds for the tightness of the Gδ-topology
Published in Monatshefte für Mathematik (09-03-2021)Get full text
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The diagonal of a first countable paratopological group, submetrizability, and related results
Published in Applied general topology (01-10-2007)“…We discuss some properties stronger than Gδ-diagonal. Among other things, we prove that any first countable paratopological group has a Gδ-diagonal of infinite…”
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Cardinal invariants of cellular-Lindelöf spaces
Published in Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A, Matemáticas (01-07-2019)“…A space X is said to be cellular-Lindelöf if for every cellular family U there is a Lindelöf subspace L of X which meets every element of U . Cellular-Lindelöf…”
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Cardinal inequalities involving the weak Rothberger and cellularity games
Published in Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A, Matemáticas (2025)“…We prove several results in the theory of topological cardinal invariants involving the game-theoretic versions of the weak Lindelöf degree and of cellularity…”
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