Results 11 to 20 of about 45 (45)

HEEGAARD FLOER HOMOLOGY AND RATIONAL CUSPIDAL CURVES

open access: yesForum of Mathematics, Sigma, 2014
We apply the methods of Heegaard Floer homology to identify topological properties of complex curves in $\mathbb{C}P^{2}$. As one application, we resolve an open conjecture that constrains the Alexander polynomial of the ...
MACIEJ BORODZIK, CHARLES LIVINGSTON
doaj   +1 more source

A Note on the Acceleration and Jerk in Motion Along a Space Curve

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2020
The resolution of the acceleration vector of a particle moving along a space curve is well known thanks to Siacci [1]. This resolution comprises two special oblique components which lie in the osculating plane of the curve.
Özen Kahraman Esen   +2 more
doaj   +1 more source

Curves in the Lorentz-Minkowski plane: elasticae, catenaries and grim-reapers

open access: yesOpen Mathematics, 2018
This article is motivated by a problem posed by David A. Singer in 1999 and by the classical Euler elastic curves. We study spacelike and timelike curves in the Lorentz-Minkowski plane 𝕃2 whose curvature is expressed in terms of the Lorentzian ...
Castro Ildefonso   +2 more
doaj   +1 more source

Characterization of Speherical Helices in Euclidean 3-Space

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2014
In this paper, we calculate Frenet frames of the tangent indicatrix (t), principal normal indicatrix (n) and binormal indicatrix (b) of the curve α in ℝ3 which are spherical curves.
Ekmekci Nejat   +2 more
doaj   +1 more source

A new frame for non-lightlike curves in Minkowski 3-space: hybrid frame

open access: yesDemonstratio Mathematica
In this study, we introduce a hybrid frame consisting of elliptic, hyperbolic, and parabolic vectors for the study of non-lightlike curves in Minkowski 3-space.
Öztürk İskender   +2 more
doaj   +1 more source

[Pollutions Environnementales et Santé sous les Tropiques]. [PDF]

open access: yesMed Trop Sante Int, 2021
Epelboin A   +4 more
europepmc   +1 more source

The effect of post-lunch napping on mood, reaction time, and antioxidant defense during repeated sprint exercice. [PDF]

open access: yesBiol Sport, 2021
Romdhani M   +9 more
europepmc   +1 more source

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