Using a unique data set with 168 ski resorts located in France, this paper investigates the relationship between lift ticket prices and supply-related characteristics of ski resorts. A nonparametric analysis combined with a principal component analysis is used to identify the set of efficient ski resorts, defined as those where the lift ticket price is the cheapest for a given level of quality....

The main aim of this article is to study the horizontal lifts projectable linear connection in semi-tangent bundle tM. properties complete and for tM are also investigated. Finally, we examine infinitesimal transformation with respect lift a connection.

We study lift metrics and connections on the tangent bundle $TM$ of a Riemannian manifold $(M,g)$. also investigate statistical Codazzi couples their consequences geometry $M$. Finally, we prove result $1$-Stein Osserman structures $TM$, whenever is equipped with complete connection.

CONTEXT Several studies showed, from the clinical point of view, the advantages of the various techniques and surgical approaches to obtain facial rejuvenation. A few studies have highlighted the satisfaction or not of patients who underwent a traditional facelift; however, a long-term follow-up study measuring patient satisfaction with midface-lift surgery has not been published yet. AIMS Th...

We introduce and study a new containment relation in graphs – lift contractions. H is a lift contraction of G if H can be obtained from G by a sequence of edge lifts and edge contractions. We show that a graph contains every n-vertex graph as a lift contraction, if (1) its treewidth is large enough, or (2) its pathwidth is large enough and it is 2-connected, or (3) its order is large enough and...

The higher pollutant level in non premixed combustion and safety issues pertaining to can be counteracted by partially-premixed mode of combustion. partially flames (PPF) exhibit the benefits both flames. PPF enhances complete leading reduced soot formation hence lower emission. However, equivalence ratio plays an important role stability such This paper reports experimental investigation on fl...

Natural analogs of Lie brackets on affine bundles are studied. In particular, a close relation to Lie algebroids and a duality with certain affine analog of Poisson structure is established as well as affine versions of the complete lift and the Cartan exterior calculus.