Results 21 to 30 of about 441 (50)
Projective Cross-Ratio on Hypercomplex Numbers
, 2012 The paper presents a new cross-ratio of hypercomplex numbers based on projective geometry. We discuss the essential properties of the projective cross-ratio, notably its invariance under Mobius transformations.
Brewer, Sky
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Timelike Bertrand Curves in Semi-Euclidean Space [PDF]
, 2010 In this paper, it is proved that, no special timelike Frenet curve is a Bertrand curve in $\mathbb{E}_2^4$ and also, in $\mathbb{E}_\nu^{n+1}$ $ ({n \ge 3})$, such that the notion of Bertrand curve is definite only in $\mathbb{E}_1^2$ and $\mathbb{E}_1^3$
Ersoy, Soley, Tosun, Murat
core
Mannheim curves with modified orthogonal frame in Euclidean 3-space
, 2018 In this paper, we investigate Mannheim pairs, Frenet-Mannheim curves and Weakened Mannheim curves with respect to the modified orthogonal frame in Euclidean 3-space(E 3 ).
Bukcu, Bahaddin +3 more
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The Rosenthal-Szasz inequality for normed planes
, 2018 We aim to study the classical Rosenthal-Szasz inequality for a plane whose geometry is given by a norm. This inequality states that the bodies of constant width have the largest perimeter among all planar convex bodies of given diameter.
Balestro, Vitor, Martini, Horst
core
On the existence of isoperimetric regions in manifolds with nonnegative Ricci curvature and Euclidean volume growth. [PDF]
Calc Var Partial Differ Equ, 2022 Antonelli G +3 more
europepmc +1 more source
Discrete cyclic systems and circle congruences. [PDF]
Ann Mat Pura Appl, 2022 Hertrich-Jeromin U, Szewieczek G.
europepmc +1 more source
Information geometry for phylogenetic trees. [PDF]
J Math Biol, 2021 Garba MK, Nye TMW, Lueg J, Huckemann SF.
europepmc +1 more source
Strengthened Moser’s conjecture, geometry of Grunsky coefficients and Fredholm eigenvalues
Open Mathematics, 2007 Krushkal Samuel
doaj +1 more source
Helicoidal surfaces in Minkowski space with constant mean curvature and constant Gauss curvature
Open Mathematics, 2014 López Rafael, Demir Esma
doaj +1 more source
Quasi-minimal rotational surfaces in pseudo-Euclidean four-dimensional space
Open Mathematics, 2014 Ganchev Georgi, Milousheva Velichka
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