Results 31 to 40 of about 1,593 (46)

Isometries of Lipschitz‐free Banach spaces

open access: yesJournal of the London Mathematical Society, Volume 110, Issue 5, November 2024.
Abstract We describe surjective linear isometries and linear isometry groups of a large class of Lipschitz‐free spaces that includes, for example, Lipschitz‐free spaces over any graph. We define the notion of a Lipschitz‐free rigid metric space whose Lipschitz‐free space only admits surjective linear isometries coming from surjective dilations (i.e ...
Marek Cúth   +2 more
wiley   +1 more source

Achievement goal theory in STEM education: A systematic review

open access: yesJournal of Engineering Education, Volume 113, Issue 4, Page 986-1007, October 2024.
Abstract Background Achievement goal theory is a popular motivational theory within education and psychology, with several review papers summarizing the extensive work done in these fields. Although reviews exist in these specific fields, none exists within science, technology, engineering, and mathematics (STEM) education.
Alexander Vincent Struck Jannini   +2 more
wiley   +1 more source

Prawitz's completeness conjecture: A reassessment

open access: yesTheoria, Volume 90, Issue 5, Page 492-514, October 2024.
Abstract In 1973, Dag Prawitz conjectured that the calculus of intuitionistic logic is complete with respect to his notion of validity of arguments. On the background of the recent disproof of this conjecture by Piecha, de Campos Sanz and Schroeder‐Heister, we discuss possible strategies of saving Prawitz's intentions.
Peter Schroeder‐Heister
wiley   +1 more source

Directionally‐split volume‐of‐fluid technique for front propagation under curvature flow

open access: yesInternational Journal for Numerical Methods in Fluids, Volume 96, Issue 9, Page 1517-1554, September 2024.
A directionally‐split volume‐of‐fluid (VOF) technique is proposed to study the evolution of interfaces under self‐generated curvature‐dependent velocity. A topological volume conservation penalty is incorporated in the geometric VOF methodology by altering the advection equation using variational principles.
Ali Fakhreddine   +2 more
wiley   +1 more source

Valuative invariants for large classes of matroids

open access: yesJournal of the London Mathematical Society, Volume 110, Issue 3, September 2024.
Abstract We study an operation in matroid theory that allows one to transition a given matroid into another with more bases via relaxing a stressed subset. This framework provides a new combinatorial characterization of the class of (elementary) split matroids.
Luis Ferroni, Benjamin Schröter
wiley   +1 more source

The definable content of homological invariants I: Ext$\mathrm{Ext}$ and lim1$\mathrm{lim}^1$

open access: yesProceedings of the London Mathematical Society, Volume 129, Issue 3, September 2024.
Abstract This is the first installment in a series of papers illustrating how classical invariants of homological algebra and algebraic topology may be enriched with additional descriptive set theoretic information. To effect this enrichment, we show that many of these invariants may be naturally regarded as functors to the category, introduced herein,
Jeffrey Bergfalk   +2 more
wiley   +1 more source

Hindman's finite sums theorem and its application to topologizations of algebras

open access: yes, 2018
The first part of the paper is a brief overview of Hindman's finite sums theorem, its prehistory and a few of its further generalizations, and a modern technique used in proving these and similar results, which is based on idempotent ultrafilters in ...
Saveliev, Denis I.
core  

Data assimilation in operator algebras. [PDF]

open access: yesProc Natl Acad Sci U S A, 2023
Freeman D   +4 more
europepmc   +1 more source

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