Results 141 to 150 of about 81,140 (282)
Swiss Political Science Review, EarlyView.Abstract Although autocracies increasingly learn how to integrate digital technologies into their covert repression toolbox, it remains unclear under which conditions they succeed in doing so. While some technologically developed autocracies seldom use covert repression, other technologically underdeveloped autocracies apply significantly more covert ...
Ildar Daminov
wiley +1 more source
School Science and Mathematics, EarlyView.ABSTRACT This study investigates the impact of problem‐posing on the mathematical proficiency and engagement of 56 Developmental Mathematics (DM) students enrolled in a noncredit college mathematics course. Using a quasi‐experimental design, one of two existing classes was selected as the experimental group and received a 5‐week intervention focused on
John Sevier +2 more
wiley +1 more source
Some Properties and Examples of Triangular Pointed Hopf Algebras [PDF]
, 1999 Shlomo Gelaki
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Teachers’ Gestures and How They Matter
Topics in Cognitive Science, Volume 17, Issue 3, Page 545-568, July 2025.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
Corrections to "$L_2$ -characteristic classes of Maslov–Trofimov of hamiltonian systems on the Lie algebra of the upper triangular matrices" (Fund. Math. 156 (1998), 99–110) [PDF]
, 1999 Jerzy B. Nowak
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The birational geometry of GIT quotients
Bulletin of the London Mathematical Society, Volume 57, Issue 7, Page 1952-1967, July 2025.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
Bulletin of the London Mathematical Society, Volume 57, Issue 7, Page 1968-1989, July 2025.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
Coloured shuffle compatibility, Hadamard products, and ask zeta functions
Bulletin of the London Mathematical Society, Volume 57, Issue 7, Page 2132-2154, July 2025.Abstract We devise an explicit method for computing combinatorial formulae for Hadamard products of certain rational generating functions. The latter arise naturally when studying so‐called ask zeta functions of direct sums of modules of matrices or class‐ and orbit‐counting zeta functions of direct products of nilpotent groups.
Angela Carnevale +2 more
wiley +1 more source
Noncompact surfaces, triangulations and rigidity
Bulletin of the London Mathematical Society, Volume 57, Issue 7, Page 2097-2115, July 2025.Abstract Every noncompact surface is shown to have a (3,6)‐tight triangulation, and applications are given to the generic rigidity of countable bar‐joint frameworks in R3${\mathbb {R}}^3$. In particular, every noncompact surface has a (3,6)‐tight triangulation that is minimally 3‐rigid. A simplification of Richards' proof of Kerékjártó's classification
Stephen C. Power
wiley +1 more source
Functional identities on upper triangular matrix algebras [PDF]
, 2000 К. И. Бейдар +2 more
openalex +1 more source