Results 51 to 60 of about 3,792,347 (201)
On hyperbolic fixed points in ultrametric dynamics
, 2010 Let K be a complete ultrametric field. We give lower and upper bounds for the size of linearization discs for power series over K near hyperbolic fixed points.
Lindahl, Karl-Olof, +3 more
core +1 more source
Multi-scale clustering by building a robust and self correcting ultrametric topology on data points. [PDF]
PLoS ONE, 2013 The advent of high-throughput technologies and the concurrent advances in information sciences have led to an explosion in size and complexity of the data sets collected in biological sciences.
Hsieh Fushing +4 more
doaj +1 more source
Percolation in an ultrametric space
Electronic Journal of Probability, 2013 Estudiamos la percolación en la red jerárquica de orden $N$ donde la probabilidad de conexión entre dos puntos separados por la distancia $k$ es de la forma $c_{k}/N^{k(1+\delta}, \delta \gr -1 $. Dado que la distancia es ultramétrica, existen diferencias significativas con la percolación en la red euclidiana. Consideramos tres regímenes: $\delta \lt 1
Donald A. Dawson, Luis G. Gorostiza
openaire +4 more sources
PLANTS, PEOPLE, PLANET, Volume 8, Issue 6, Page 2061-2079, November 2026.Medicinal plants used in ethnobotanical traditions to treat or prevent diseases have gained renewed interest for their largely untapped potential in drug discovery. In this study, we developed and tested novel methods to prioritise plant species based on their unexplored medicinal potential. By enabling researchers to target the most promising species,
Giovanni Zecca +3 more
wiley +1 more source
Topological Properties of International Commodity Market: How Uncertainty Affects the Linkages?
Agribusiness, Volume 42, Issue 4, Page 2057-2073, Autumn 2026.ABSTRACT The study aims to explore the network topology of the international commodity market by examining the interconnections among 21 commodity futures across various categories, including energy, precious and industrial metals, and agriculture. We analyze the market structure of these commodity futures under both low and high uncertainty conditions
Ibrahim Yagli, Bayram Deviren
wiley +1 more source
UNIQUE FIXED POINT THEOREMS FOR CONTRACTIVE MAPS TYPE IN T 0 -QUASI-METRIC SPACES [PDF]
, 2014 In [2], Agyingi proved that every generalized contractive mapping defined in a q-spherically complete T 0 -ultra-quasi-metric space has a unique fixed point.
Yae ́ Ulrich Gaba
core +1 more source
Results on the Existence and Convergence of Best Proximity Points
Fixed Point Theory and Applications, 2010 We first consider a cyclic φ-contraction map on a reflexive Banach space X and provide a positive answer to a question raised by Al-Thagafi and Shahzad on the existence of best proximity points for cyclic φ-contraction maps in reflexive ...
Ali Abkar, Moosa Gabeleh
doaj +2 more sources
Hyperbolic Metric Spaces and Stochastic Embeddings
Forum of Mathematics, SigmaStochastic embeddings of finite metric spaces into graph-theoretic trees have proven to be a vital tool for constructing approximation algorithms in theoretical computer science.
Chris Gartland
doaj +1 more source
Indivisible ultrametric spaces
Topology and its Applications, 2008 A metric space is indivisible if for any partition of it into finitely many pieces one piece contains an isometric copy of the whole space. Continuing our investigation of indivisible metric spaces, we show that a countable ultrametric space embeds isometrically into an indivisible ultrametric metric space if and only if it does not contain a strictly ...
Delhommé, Christian +3 more
openaire +4 more sources