Ceva-triangular points of a triangle

2021 ◽  
Author(s):  
Norbert Hungerbühler ◽  
Gerhard Wanner
Keyword(s):  
Triangular Points

scholarly journals LOCATION AND STABILITY OF THE TRIANGULAR POINTS IN THE TRIAXIAL ELLIPTIC RESTRICTED THREE-BODY PROBLEM

2021 ◽  
Vol 57 (2) ◽  
pp. 311-319
Author(s):  
M. Radwan ◽  
Nihad S. Abd El Motelp
Keyword(s):  
Linear Stability ◽  
Periodic Orbits ◽  
Body Problem ◽  
Restricted Three Body Problem ◽  
Three Body Problem ◽  
Stability Regions ◽  
Triangular Points ◽  
Problem Frame ◽  
The Stability ◽  
Three Body

The main goal of the present paper is to evaluate the perturbed locations and investigate the linear stability of the triangular points. We studied the problem in the elliptic restricted three body problem frame of work. The problem is generalized in the sense that the two primaries are considered as triaxial bodies. It was found that the locations of these points are affected by the triaxiality coefficients of the primaries and the eccentricity of orbits. Also, the stability regions depend on the involved perturbations. We also studied the periodic orbits in the vicinity of the triangular points.

scholarly journals On the Nonlinear Stability of the Triangular Points in the Circular Spatial Restricted Three-body Problem

2020 ◽  
Vol 25 (2) ◽  
pp. 131-148
Author(s):  
Daniela Cárcamo-Díaz ◽  
Jesús F. Palacián ◽  
Claudio Vidal ◽  
Patricia Yanguas
Keyword(s):  
Nonlinear Stability ◽  
Body Problem ◽  
Restricted Three Body Problem ◽  
Three Body Problem ◽  
Triangular Points ◽  
Three Body

Lithic Technology at Linda's Point, Healy Lake, Alaska

ARCTIC ◽  
2016 ◽  
Vol 69 (1) ◽  
pp. 79 ◽  
Author(s):  
Angela M. Younie ◽  
Thomas E. Gillispie
Keyword(s):  
Time Range ◽  
Lake Area ◽  
Short Term ◽  
Triangular Points ◽  
Culture History ◽  
History Of ◽  
Bone Fragments ◽  
Terminal Pleistocene ◽  
Cultural Component ◽  
Tool Types

<p class="Pa5" style="text-align: justify; text-justify: inter-ideograph;"><span style="font-size: 10.0pt; color: #221e1f;">Interior Alaska’s Healy Lake archaeological locality contains a cultural sequence spanning 13 500 years, beginning with some of the oldest known human occupations in Alaska. From 2011 to 2014, we conducted archaeological excavations at the Linda’s Point site. Detailed recording has clearly separated the lowest cultural component at the site and begun to clarify the contentious culture history of the Healy Lake area. The lower component, associated with a thick paleosol, contains multiple hearths, debitage, and small triangular points similar to those seen at the Healy Lake Village site. The upper silt deposits contain a variety of lithic tool types within a dense scatter of debitage and bone fragments spanning a wide time range. Linda’s Point appears to have been used as a habitation site throughout its history, changing from recurring short-term occupations in the terminal Pleistocene to more intensive site habitation and greater reliance on local lithic resources during the Holocene.</span></p>

A Shell Heap Site on Griffin Island, Wellfleet, Massachusetts

1962 ◽  
Vol 28 (1) ◽  
pp. 96-100 ◽  
Author(s):  
Ross Moffett
Keyword(s):  
Final Stage ◽  
Late Woodland ◽  
Cape Cod ◽  
Middle Woodland ◽  
Triangular Points

AbstractA group of small middens has yielded cultural materials that are characteristic of Cape Cod. A Middle Woodland stage having grit-tempered, dentate- and rocker-stamped pottery, stemmed and side-notched points was followed by a Late Woodland 1 stage using course shell-tempered, straight-sided vessels, and large triangular points. A late Woodland 2, or final, stage had fine shell-tempered, globular pots, to some extent suggestive of late Windsor pottery of the coastal section west of Cape Cod.

Sign in / Sign up

Export Citation Format

Share Document