Results 11 to 20 of about 2,034,699 (144)
Morphological diversity of saber-tooth upper canines and its functional implications. [PDF]
Anat Rec (Hoboken)Abstract Elongated upper canine teeth, commonly known as saber‐teeth, have evolved three times within the sub‐order Feliformia. The species that wielded them flourished throughout the Cenozoic and have historically been separated into two morphological groups: the dirk‐tooths with longer, flatter canines, and the scimitar‐tooths with shorter, serrated ...
Shelbourne CD, Lautenschlager S.
europepmc +2 more sources
Super parallel immersions in Euclidean space
International Journal of Mathematics and Mathematical Sciences, 2002 Two submanifolds of Euclidean n-space En are called super parallel if the affine normal spaces are homothetic at the corresponding points. Characterizations are given for the action of conformal transformation on super parallel mates.
Tarek Fathy Mersal +1 more
doaj +1 more source
Spherically Symmetric, Self-Similar Spacetimes [PDF]
, 2001 Self-similar spacetimes are of importance to cosmology and to gravitational collapse problems. We show that self-similarity or the existence of a homothetic Killing vector field for spherically symmetric spacetimes implies the separability of the ...
A. Ori +7 more
core +2 more sources
Welfare and Output with Income Effects and Taste Shocks
, 2021 We provide a non-parametric characterization of how welfare responds to changes in budget and production possibility sets when preferences are non-homothetic or subject to shocks, in both partial and general equilibrium.
D. Baqaee, Ariel T. Burstein
semanticscholar +1 more source
N = 2 supersymmetric sigma-models and duality [PDF]
, 2010 For two families of four-dimensional off-shell N = 2 supersymmetric nonlinear sigma-models constructed originally in projective superspace, we develop their formulation in terms of N = 1 chiral superfields.
A Galperin +50 more
core +2 more sources
Advanced Information Systems, 2019 The subject matter of the paper is the problem of optimal packing of spheres of different dimension into a container of arbitrary geometric shape. The goal is to construct a mathematical model which associates different statements of the problem.
G. Yaskov, S. Shekhovtsov
semanticscholar +1 more source
Stability optimization for a simultaneously twisted and compressed rod
Multidiscipline Modeling in Materials and Structures, 2022 PurposeThe authors search the optimal distribution of bending flexure along the axis of the rod. For the solution of the actual problem, the stability equations take into account all possible convex, simply connected shapes of the cross-section.
V. Kobelev
semanticscholar +1 more source
ON D-HOMOTHETIC DEFORMATION OF TRANS-SASAKIAN STRUCTURE
, 2008 Abs t rac t . The object of the present paper is to study a transformation called Dhomothetic deformation of trans-Sasakian structure. Among others it is shown that in a trans-Sasakian manifold, the Ricci operator Q does not commute with the structure ...
A. Shaikh, K. Baishya, S. Eyasmin
semanticscholar +2 more sources
Per capita income and the extensive margin of bilateral trade [PDF]
, 2012 This paper quantitatively explores the role of the demand structure in explaining the relationship between an importer's per capita income and the extensive margin of bilateral trade.
Hepenstrick, Christian +1 more
core +2 more sources
Self-similar cosmologies in 5D: spatially flat anisotropic models
, 2008 In the context of theories of Kaluza-Klein type, with a large extra dimension, we study self-similar cosmological models in 5D that are homogeneous, anisotropic and spatially flat.
Horowitz G. T. +6 more
core +3 more sources