Results 161 to 170 of about 2,604,528 (199)

Teachers’ Gestures and How They Matter

open access: yesTopics in Cognitive Science, EarlyView.
Abstract How do teachers’ gestures influence students’ learning? This article reviews research investigating the role of gestures in communication, focusing on teachers’ communication with their students, primarily in mathematics and science instruction.
R. Breckinridge Church   +4 more
wiley   +1 more source

Transcendence of Hecke–Mahler series

open access: yesBulletin of the London Mathematical Society, EarlyView.
Abstract We prove transcendence of the Hecke–Mahler series ∑n=0∞f(⌊nθ+α⌋)β−n$\sum _{n=0}^\infty f(\lfloor n\theta +\alpha \rfloor) \beta ^{-n}$, where f(x)∈Z[x]$f(x) \in \mathbb {Z}[x]$ is a non‐constant polynomial, α$\alpha$ is a real number, θ$\theta$ is an irrational real number and β$\beta$ is an algebraic number such that |β|>1$|\beta |>1$.
Florian Luca   +2 more
wiley   +1 more source

The Hilton–Milnor theorem in higher topoi

open access: yesBulletin of the London Mathematical Society, EarlyView.
Abstract In this note, we show that the classical theorem of Hilton–Milnor on finite wedges of suspension spaces remains valid in an arbitrary ∞$\infty$‐topos. Our result relies on a version of James' splitting proved in [Devalapurkar and Haine, Doc. Math.
Samuel Lavenir
wiley   +1 more source

Emerging trends in soft set theory and related topics. [PDF]

open access: yesScientificWorldJournal, 2015
Feng F   +3 more
europepmc   +1 more source

Remarks on τ$\tau$‐tilted versions of the second Brauer–Thrall conjecture

open access: yesBulletin of the London Mathematical Society, EarlyView.
Abstract In this short note, we state a stable and a τ$\tau$‐reduced version of the second Brauer–Thrall conjecture. The former is a slight strengthening of a brick version of the second Brauer–Thrall conjecture raised by Mousavand and Schroll–Treffinger–Valdivieso.
Calvin Pfeifer
wiley   +1 more source

Quantum cluster algebras and quantum nilpotent algebras. [PDF]

open access: yesProc Natl Acad Sci U S A, 2014
Goodearl KR, Yakimov MT.
europepmc   +1 more source

Preservation for generation along the structure morphism of coherent algebras over a scheme

open access: yesBulletin of the London Mathematical Society, EarlyView.
Abstract This work demonstrates classical generation is preserved by the derived pushforward along the structure morphism of a noncommutative coherent algebra to its underlying scheme. Additionally, we establish that the Krull dimension of a variety over a field is a lower bound for the Rouquier dimension of the bounded derived category associated with
Anirban Bhaduri, Souvik Dey, Pat Lank
wiley   +1 more source

The birational geometry of GIT quotients

open access: yesBulletin of the London Mathematical Society, EarlyView.
Abstract Geometric invariant theory (GIT) produces quotients of algebraic varieties by reductive groups. If the variety is projective, this quotient depends on a choice of polarisation; by work of Dolgachev–Hu and Thaddeus, it is known that two quotients of the same variety using different polarisations are related by birational transformations.
Ruadhaí Dervan, Rémi Reboulet
wiley   +1 more source

Removing scalar curvature assumption for Ricci flow smoothing

open access: yesBulletin of the London Mathematical Society, EarlyView.
Abstract In recent work of Chan–Huang–Lee, it is shown that if a manifold enjoys uniform bounds on (a) the negative part of the scalar curvature, (b) the local entropy, and (c) volume ratios up to a fixed scale, then there exists a Ricci flow for some definite time with estimates on the solution assuming that the local curvature concentration is small ...
Adam Martens
wiley   +1 more source

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