Results 21 to 30 of about 37,802 (311)

Kinematic Differential Geometry of a Line Trajectory in Spatial Movement

Axioms, 2023
This paper investigates the kinematic differential geometry of a line trajectory in spatial movement. Specifically, we provide a theoretical expression of inflection line congruence, which is the spatial equivalent of the inflection circle of planar ...
Areej A. Almoneef, Rashad A. Abdel-Baky
doaj   +1 more source

Ethnomathematics: Utilization and Introduction of Geometry Buildings Using Janur (Coconut Leaf)

Journal of Medives: Journal of Mathematics Education IKIP Veteran Semarang, 2023
One area of mathematics that requires a good understanding and depiction of abstract concepts is geometry. Therefore it is necessary to apply realistic learning. One type of realistic learning is ethnomathematics.
Dwina Rahayu Saputri, Siti Salamah Br Ginting   +1 more
doaj   +1 more source

On the relation of congruence in finite geometries

MATHEMATICA SCANDINAVICA, 1957
Paul Kustaanheimo
openalex   +6 more sources

Visual Arts in U.S. Geometry Textbooks Aligned with the Common Core Standards

Annales de Didactique et de Sciences Cognitives, 2020
This study investigates visual arts references in five U.S. high school geometry textbooks aligned with the Common Core State Standards for Mathematics. In all of the textbooks, architecture is the most commonly used context. More than half of the visual
Gloriana González
doaj   +1 more source

Focusing of geodesic congruences in an accelerated expanding Universe [PDF]

, 2012
We study the accelerated expansion of the Universe through its consequences on a congruence of geodesics. We make use of the Raychaudhuri equation which describes the evolution of the expansion rate for a congruence of timelike or null geodesics.
, A. Abebe, A. de la Cruz-Dombriz, A. de la Cruz-Dombriz, B. Carter, F.D Albareti, G. Lemaître, G. Lemaître, G.F. Ellis, H.P. Robertson, J. Beltrán Jimenez, J. Cembranos, J. Cembranos, J. Cembranos, J. Cembranos, J. Cembranos, J. Ehlers, J.A. Cembranos, J.A.R Cembranos, L.P. Eisenhart, N. Dadhich, N. Dadhich, N. Jarosik ., R.M. Wald, S. Carloni, S. Nojiri, Supernova Cosmology Project collaboration, Supernova Search Team collaboration, Supernova Search Team collaboration, WMAP collaboration   +29 more
core   +3 more sources

Association between increased signal intensity at the proximal patellar tendon and patellofemoral geometry in community-based asymptomatic middle-aged adults: a cross-sectional study

BMC Musculoskeletal Disorders, 2020
Background Histological and epidemiological data suggest that increased signal intensity at the proximal patellar tendon on magnetic resonance imaging is a response to tendon loading.
Robert D. Little, Samuel E. Smith, Flavia M. Cicuttini, Stephanie K. Tanamas, Anita E. Wluka, Sultana Monira Hussain, Donna M. Urquhart, Graeme Jones, Yuanyuan Wang   +8 more
doaj   +1 more source

Geometric correlation of cultural landscape patterns and Prunus domestica L. species leaf [PDF]

Glasnik Šumarskog Fakulteta: Univerzitet u Beogradu, 2011
This paper provides the basics for more detailed research on the structures of bionic forms of different plant species and their application in the domain of landscape planning.
Jović Biljana, Tripković Miloš, Čučaković Aleksandar   +2 more
doaj   +1 more source

Breaking the Conformal Gauge by Fixing Time Protocols [PDF]

, 2014
We review the definition by Perlick of standard clocks in a Weyl geometry and show how a congruence of clocks can be used to fix the conformal gauge in the EPS framework.
Fatibene, Lorenzo, Garruto, Simon, Polistina, Maurizio   +2 more
core   +1 more source

Modular curves and the refined distance conjecture

Journal of High Energy Physics, 2021
We test the refined distance conjecture in the vector multiplet moduli space of 4D N $$ \mathcal{N} $$ = 2 compactifications of the type IIA string that admit a dual heterotic description.
Daniel Kläwer
doaj   +1 more source

Stringlike structures in Kerr-Schild geometry: N=2 string, twistors and Calabi-Yau twofold [PDF]

, 2013
Four-dimensional Kerr-Schild geometry contains two stringy structures. The first one is the closed string formed by the Kerr singular ring, and the second one is an open complex string with was obtained in the complex structure of the Kerr-Schild ...
Burinskii, Alexander
core   +1 more source