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A hypersurface is said to be totally biharmonic if all its geodesics are biharmonic curves in the ambient space. We prove that a totally biharmonic hypersurface into a space form is an isoparametric biharmonic hypersurface, which allows us…

Differential Geometry · Mathematics 2019-12-24 Stefano Montaldo , Alvaro Pampano

We give a global description of envelopes of geodesic tangents of regular curves in (not necessarily convex) Riemannian surfaces. We prove that such an envelope is the union of the curve itself, its inflectional geodesics and its tangential…

Differential Geometry · Mathematics 2007-05-23 Gianmarco Capitanio

We study biharmonic maps between conformally compact manifolds, a large class of complete manifolds with bounded geometry, asymptotically negative curvature, and smooth compactification. These metrics provide a far-reaching generalization…

Differential Geometry · Mathematics 2026-01-14 Marco Usula

$f$-Biharmonic maps are generalizations of harmonic maps and biharmonic maps. In this paper, we obtain some descriptions of $f$-biharmonic curves in a space form. We also obtain a complete classification of proper $f$-biharmonic isometric…

Differential Geometry · Mathematics 2024-02-13 Ze-Ping Wang , Li-Hua Qin

We consider the biharmonicity condition for maps between Riemannian manifolds (see [BK]), and study the non-geodesic biharmonic curves in the Heisenberg group H_3. First we prove that all of them are helices, and then we obtain explicitly…

Differential Geometry · Mathematics 2007-05-23 R. Caddeo , C. Oniciuc , P. Piu

Measuring the similarity of curves is a fundamental problem arising in many application fields. There has been considerable interest in several such measures, both in Euclidean space and in more general setting such as curves on Riemannian…

Computational Geometry · Computer Science 2013-04-01 Erin Wolf Chambers , Yusu Wang

We prove a general comparison result for homotopic finite $p$-energy $C^{1}$ $p$-harmonic maps $u,v:M\to N$ between Riemannian manifolds, assuming that $M$ is $p$-parabolic and $N$ is complete and non-positively curved. In particular, we…

Differential Geometry · Mathematics 2010-11-17 Giona Veronelli

First, we classify proper biharmonic Hopf real hypersurfaces in $\mathbb{C}P^2$. Next, we classify proper biharmonic real hypersurfaces with two distinct principal curvatures in $\mathbb{C}P^n$, where $n\geq 2$. Finally, we prove that…

Differential Geometry · Mathematics 2019-04-15 Toru Sasahara

Similarly to the Bers simultaneous uniformization, the product of the $p$-Weil-Petersson Teichm\"uller spaces for $p \geq 1$ provides the coordinates for the space of $p$-Weil-Petersson embeddings $\gamma$ of the real line $\mathbb R$ into…

Complex Variables · Mathematics 2022-11-29 Huaying Wei , Katsuhiko Matsuzaki

We characterize the biharmonic curves in the special linear group $SL(2,R)$. In particular, we show that all proper biharmonic curves in $SL(2,R)$are helices and we give their explicit parametrizations as curves in the pseudo-Euclidean…

Differential Geometry · Mathematics 2014-04-01 I. I. Onnis , A. Passos Passamani

We explore the geometric properties of biharmonic curves in warped product manifolds of the form $I\times _{f}M^{n}(c)$, where $I$ is an open interval and $M^{n}(c)$ is a space of constant curvature. By establishing a main theorem, we…

Differential Geometry · Mathematics 2025-05-06 Şaban Güvenç , Cihan Özgür

Biharmonic maps between surfaces are studied in this paper. We compute the bitension field of a map between surfaces with conformal metrics in complex coordinates. As applications, we show that a linear map from Euclidean plane into…

Differential Geometry · Mathematics 2010-08-05 Ye-Lin Ou , Sheng Lu

In this paper, we study biharmonic hypersurfaces in a product of an Einstein space and a real line. We prove that a biharmonic hypersurface with constant mean curvature in such a product is either minimal or a vertical cylinder generalizing…

Differential Geometry · Mathematics 2019-06-06 Yu Fu , Shun Maeta , Ye-Lin Ou

This paper deals with connections on $p$-adic analytic curves, in the sense of Berkovich. The curves must be compact but the connections are allowed to have a finite number of meromorphic singularities on them. For any choice of a…

Algebraic Geometry · Mathematics 2010-03-30 Francesco Baldassarri

We define winding numbers of regular closed curves on surfaces with a nice euclidean or hyperbolic geometry. We prove that two regular closed curves are regularly homotopic if and only if they are freely homotopic and have the same winding…

Geometric Topology · Mathematics 2017-08-10 Masayuki Yamasaki

We study area- and length-preserving curvature flows for embedded closed curves on pinched Hadamard surfaces. In the variable-curvature setting, the evolution equations contain additional lower-order terms, so the PDE analysis requires…

Differential Geometry · Mathematics 2026-04-16 Sara Albert-Niclòs , Esther Cabezas-Rivas

We consider two types of $p$-centro affine flows on smooth, centrally symmetric, closed convex planar curves, $p$-contracting, respectively, $p$-expanding. Here $p$ is an arbitrary real number greater than 1. We show that, under any…

Differential Geometry · Mathematics 2012-09-19 Mohammad N. Ivaki

J. Eells and L. Lemaire introduced k-harmonic maps, and Wang Shaobo showed the first variational formula. When, k=2, it is called biharmonic maps (2-harmonic maps). There have been extensive studies in the area. In this paper, we consider…

Differential Geometry · Mathematics 2010-10-06 Shun Maeta

We compute a Simons' type formula for the stress-energy tensor of biharmonic maps from surfaces. Specializing to Riemannian immersions, we prove several rigidity results for biharmonic CMC surfaces, putting in evidence the influence of the…

Differential Geometry · Mathematics 2016-01-20 E. Loubeau , C. Oniciuc

We investigate the logarithmic and power-type convexity of the length of the level curves for $a$-harmonic functions on smooth surfaces and related isoperimetric inequalities. In particular, our analysis covers the $p$-harmonic and the…

Analysis of PDEs · Mathematics 2023-03-29 Tomasz Adamowicz , Giona Veronelli