Results 51 to 60 of about 12,889 (115)

Hall's marriage theorem

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 1, January 2026.
Abstract In 1935, Philip Hall published what is often referred to as ‘Hall's marriage theorem’ in a short paper (P. Hall, J. Lond. Math. Soc. (1) 10 (1935), no. 1, 26–30.) This paper has been very influential. I state the theorem and outline Hall's proof, together with some equivalent (or stronger) earlier results, and proceed to discuss some the many ...
Peter J. Cameron
wiley   +1 more source

Time‐resolved mapping of myocardial stiffness using 2D multifrequency spiral MR elastography with and without external vibration

open access: yesMagnetic Resonance in Medicine, Volume 94, Issue 6, Page 2421-2434, December 2025.
Abstract Purpose There is a clinical need for stiffness mapping of the heart; however, current cardiac magnetic resonance elastography (cMRE) has limited spatiotemporal resolution. Therefore, we developed 2D spiral multifrequency MRE of the human heart and conducted a study to analyze the consistency and reproducibility of motion‐encoding and stiffness
Matthias S. Anders   +14 more
wiley   +1 more source

On almost set-Menger spaces in bitopological context

open access: gold, 2022
Necati Can Açıkgöz   +1 more
openalex   +1 more source

The Collapse of Interwar Vienna: Oskar Morgenstern’s Community, 1925 - 1950 [PDF]

open access: yes
From the perspective of science, art and intellectual life in general, Interwar Vienna was one of the most vibrant communities in modern European history.
Robert Leonard
core  

The connections between the Austrian tradition and some of the recent developments relating to the economic analysis of institutions. [PDF]

open access: yes
This paper has two aims. First, it studies the way the Austrian theory of institutions evolved from the main works of Menger. Second, and most significantly, it tries to justify the idea that the economic analysis of institutions was inspired more or ...
Pierre Garrouste
core  

Lower oxygen saturation with higher rates of norepinephrine in bone fractures of polytrauma patients: a pilot study. [PDF]

open access: yesCrit Care, 2023
Koch L   +10 more
europepmc   +1 more source

Ahlfors-Regular Curves In Metric Spaces

open access: yes, 2006
We discuss 1-Ahlfors-regular connected sets in a general metric space and prove that such sets are `flat' on most scales and in most locations. Our result is quantitative, and when combined with work of I.
Schul, Raanan
core  

Generation of Connective Tissue-Free Microvascular Fragment Isolates from Subcutaneous Fat Tissue of Obese Mice. [PDF]

open access: yesTissue Eng Regen Med, 2023
Meßner FC   +5 more
europepmc   +1 more source

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