Results 11 to 20 of about 158,996 (288)
Non-convexity of extremal length [PDF]
arXiv, 2023 With respect to every Riemannian metric, the Teichm\"uller metric, and the Thurston metric on Teichm\"uller space, we show that there exist measured foliations on surfaces whose extremal length functions are not convex. The construction uses harmonic maps to $\mathbb{R}$-trees and minimal surfaces in $\mathbb{R}^n.$
arxiv +4 more sources
Extremal length and duality [PDF]
arXivClassical extremal length (or conformal modulus) is a conformal invariant involving families of paths on the Riemann sphere. In ``Extremal length and functional completion'', Fuglede initiated an abstract theory of extremal length which has since been widely applied.
arxiv +4 more sources
Variation of extremal length functions on Teichmuller space [PDF]
International Mathematics Research Notices, 2012 Extremal length is an important conformal invariant on Riemann surface. It is closely related to the geometry of Teichmuller metric on Teichmuller space. By identifying extremal length functions with energy of harmonic maps from Riemann surfaces to $\mathbb{R}$-trees, we study the second variation of extremal length functions along Weil-Petersson ...
Lixin Liu, Weixu Su
arxiv +6 more sources
On the ACC for lengths of extremal rays [PDF]
Tohoku Mathematical Journal, 2013 We discuss the ascending chain condition for lengths of extremal rays. We prove that the lengths of extremal rays of $n$-dimensional $\mathbb Q$-factorial toric Fano varieties with Picard number one satisfy the ascending chain condition.
Fujino, Osamu, Ishitsuka, Yasuhiro
openaire +4 more sources
Flexural Behavior of Bidirectionally Graded Lattice
Advanced Engineering Materials, EarlyView., 2023 An experimental study of the bending behavior of bidirectional body‐centered cubic lattice beams is conducted in comparison to uniform and unidirectional counterparts of electron beam melted SS 316 L. Experimental results are used to develop and validate a finite element model which is subsequently used to conduct parametric studies to assess the ...
Chamini Rodrigo +4 more
wiley +1 more source
On generalized Berwald manifolds: extremal compatible linear connections, special metrics and low dimensional spaces [PDF]
AUT Journal of Mathematics and Computing, 2021 The notion of generalized Berwald manifolds goes back to V. Wagner [60]. They are Finsler manifolds admitting linear connections on the base manifold such that the parallel transports preserve the Finslerian length of tangent vectors (compatibility ...
Csaba Vincze
doaj +1 more source
Benzenoid isomers with greatest and smallest Kekulé structure counts [PDF]
Journal of the Serbian Chemical Society, 2006 In families of benzenoid isomers, the species with the greatest and smallest value of the Kekulé structure count (K) possess, respectively, the greatest and smallest thermodynamic stability and, respectively, the smallest and greates reactivity.
Gutman Ivan +3 more
doaj +3 more sources
Climate Extremes and the Length of Gestation
Environmental Health Perspectives, 2011 Although future climate is predicted to have more extreme heat conditions, the available evidence on the impact of these conditions on pregnancy length is very scarce and inconclusive.We investigated the impact of maternal short-term exposure to extreme ambient heat on the length of pregnancy.This study was based on a cohort of births that occurred in ...
Dadvand, Payam +7 more
openaire +7 more sources
Single particle operators and their correlators in free N $$ \mathcal{N} $$ = 4 SYM
Journal of High Energy Physics, 2020 We consider a set of half-BPS operators in N $$ \mathcal{N} $$ = 4 super Yang-Mills theory which are appropriate for describing single-particle states of superstring theory on AdS5 × S 5.
F. Aprile +6 more
doaj +1 more source
Permutations with short monotone subsequences [PDF]
Discrete Mathematics & Theoretical Computer Science, 2005 We consider permutations of $1,2,...,n^2$ whose longest monotone subsequence is of length $n$ and are therefore extremal for the Erdős-Szekeres Theorem. Such permutations correspond via the Robinson-Schensted correspondence to pairs of square $n \times n$
Dan Romik
doaj +1 more source