Results 31 to 40 of about 1,378,245 (304)

A relaxed block splitting preconditioner for complex symmetric indefinite linear systems

open access: yesOpen Mathematics, 2018
In this paper, we propose a relaxed block splitting preconditioner for a class of complex symmetric indefinite linear systems to accelerate the convergence rate of the Krylov subspace iteration method and the relaxed preconditioner is much closer to the ...
Huang Yunying, Chen Guoliang
doaj   +1 more source

Sustaining interaction in a mathematical community of practice [PDF]

open access: yes, 2005
This paper focuses on an activity in which students explore sequences through a game, using ToonTalk programming and a web-based collaboration system. Our analytical framework combines theory of communities of practice with domain epistemology.
De Lacerda Matos, João Filipe   +3 more
core   +3 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

Lange on Mathematical Explanation, Grounding, and the Divergence Thesis

open access: yesCrítica
Mark Lange has defended the view that mathematical explanation and grounding explanation diverge. In this paper, I argue that at least one type of grounding relation is immune to his criticisms. After fixing a minimal separatist theory of ground, I show
Mohammad Maarefi
doaj   +1 more source

Problematising current forms of legitimised participation in the examination papers for Mathematical Literacy

open access: yesPythagoras, 2015
In this article we argue that in South Africa the current format of legitimised participation and practice in the examination papers for Mathematical Literacy restricts successful apprenticeship in the discipline of scientific mathematics and limits ...
Marc North, Iben M. Christiansen
doaj   +1 more source

Univalent Foundations as a Foundation for Mathematical Practice [PDF]

open access: yes, 2018
I prove that invoking the univalence axiom is equivalent to arguing 'without loss of generality' (WLOG) within Propositional Univalent Foundations (PropUF), the fragment of Univalent Foundations (UF) in which all homotopy types are mere propositions.
Crane, Harry
core   +1 more source

How to make Dupire's local volatility work with jumps [PDF]

open access: yes, 2013
There are several (mathematical) reasons why Dupire's formula fails in the non-diffusion setting. And yet, in practice, ad-hoc preconditioning of the option data works reasonably well. In this note we attempt to explain why.
Marc Yor   +5 more
core   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

Learning from Euler. From Mathematical Practice to Mathematical Explanation

open access: yesPhilosophia Scientiæ, 2012
In his "Découverte d'un nouveau principe de mécanique" (1750) Euler offered, for the first time, a proof of the so-called Euler's Theorem. In this paper I will focus on Euler's original proof and I will show how a look at Euler's practice as a ...
Daniele Molinini
doaj   +1 more source

Nietzsche’s Philosophy of Mathematics [PDF]

open access: yes, 1999
Nietzsche has a surprisingly significant and strikingly positive assessment of mathematics. I discuss Nietzsche's theory of the origin of mathematical practice in the division of the continuum of force, his theory of numbers, his conception of the finite
Steinhart, Eric
core  

Home - About - Disclaimer - Privacy