Results 11 to 20 of about 241,064 (135)
Die Geheimnisse hochdichter Materie
Physik in unserer Zeit, Volume 54, Issue 5, Page 238-245, September 2023., 2023 Neutronensterne gehören neben Schwarzen Löchern zu den extremsten Objekten des Universums. Wenn sie mit rund 20 % der Lichtgeschwindigkeit miteinander kollidieren, wird ein Teil ihrer Materie mit hoher Geschwindigkeit ausgestoßen. Dies und die Analyse von Gravitationswellen erlauben tiefe Einblicke in die Eigenschaften extrem dichter Materie in ihrem ...
Andreas Bauswein
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Was macht Mathematik effektiv?
Physik in unserer Zeit, Volume 54, Issue 4, Page 176-183, July 2023., 2023 „Ob ich die Mathematik auf ein Paar Dreckklumpen anwende, die wir Planeten nennen, oder auf rein arithmetische Probleme, es bleibt sich gleich, die letztern haben nur noch einen höhern Reiz für mich”, soll Gauß gesagt haben. Aus unserer Sicht ist es ein Geben und Nehmen auf gleicher Augenhöhe zwischen Mathematik und anderen Wissenschaften.
Andreas Loos +2 more
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Can a ground‐based vehicle hear the shape of a room?
Studies in Applied Mathematics, Volume 151, Issue 1, Page 352-368, July 2023., 2023 Abstract Assume that a ground‐based vehicle moves in a room with walls or other planar surfaces. Can the vehicle reconstruct the positions of the walls from the echoes of a single sound event? We assume that the vehicle carries some microphones and that a loudspeaker is either also mounted on the vehicle or placed at a fixed location in the room.
Mireille Boutin, Gregor Kemper
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Journal of Mathematics, Volume 2023, Issue 1, 2023., 2023 The engineering and construction sector is vital to a country’s economic growth, financial activities, and development. These sectors generate opportunities for the unemployed, unskilled, and skilled workforce. Recently, a lot of researchers worked on the Aczel–Alsina t‐norm (TN) and t‐conorm (TCN), which are generalizing many other t‐norms and ...
Khalida Jabeen +4 more
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Unique Common Fixed Points for Occasionally Weakly Biased Maps of Type A in b‐Metric‐Like Spaces
Journal of Function Spaces, Volume 2023, Issue 1, 2023., 2023 We start this work by demonstrating the existence of unique common fixed points for two pairs of occasionally weakly biased maps of type A in a b‐metric‐like space, and we end it by producing two illustrative examples in order to support and show that our results are meaningful.
Hakima Bouhadjera +5 more
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Kaleva‐Seikkala’s Type Fuzzy b‐Metric Spaces and Several Contraction Mappings
Journal of Function Spaces, Volume 2022, Issue 1, 2022., 2022 In this paper, we introduce the concept of Kaleva‐Seikkala’s type fuzzy b‐metric spaces as a generalization of the notion of b‐metric spaces and fuzzy metric spaces. In such spaces, we establish Banach type, Reich type, and Chatterjea type fixed‐point theorems, which improve the relevant results in fuzzy metric spaces. Two technical lemmas are employed
Shu-Fang Li +3 more
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A Defect Localization Approach Based on Improved Areal Coordinates and Machine Learning
Journal of Sensors, Volume 2022, Issue 1, 2022., 2022 The defects are usually generated during the structural materials subjected to external loads. Elucidating the position distribution of defects using acoustic emission (AE) technique provides the basis for investigating the failure mechanism and prevention of materials and estimating the location of the potentially dangerous sources.
Dandan Pang +4 more
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Ordered Uniform Convexity in Ordered Convex Metric Spaces with an Application to Fixed Point Theory
Journal of Function Spaces, Volume 2022, Issue 1, 2022., 2022 In this paper, we introduce the concept of ordered uniform convexity in ordered convex metric spaces and study some properties of order uniform convexity. Finally, as application, we connect our results with existence of fixed points for monotone non‐expansive mappings defined on these spaces.
Ismat Beg, Pasquale Vetro
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Maximal Soft Compact and Maximal Soft Connected Topologies
Applied Computational Intelligence and Soft Computing, Volume 2022, Issue 1, 2022., 2022 In various articles, it is said that the class of all soft topologies on a common universe forms a complete lattice, but in this paper, we prove that it is a complete lattice. Some soft topologies are maximal, and some are minimal with respect to specific soft topological properties. We study the properties of soft compact and soft connected topologies
Samer Al Ghour +2 more
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[Letter from Max Menger to Carl Menger]
, 1908 Place of sender: Vienna1 leafHandwritten letter（カール・メンガー文庫の手沢本および関連資料のデジタル化公開）は公益財団法人図書館振興財団の2024年度の助成を受けて実施しています。Location of original: Center for Historical Social Science Literature, Hitotsubashi University44-
Menger, Max, 1838-1911
core +4 more sources