Results 71 to 80 of about 339 (176)
Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 6, June 2026.ABSTRACT The family Narcinidae has a cosmopolitan distribution; however, its systematic composition and phylogenetic position within Torpediniformes remain poorly understood. This study evaluates the evolutionary and biogeographic history of the family Narcinidae and investigates its distribution patterns using molecular systematics.
Luis Fernando da Silva Rodrigues‐Filho +7 more
wiley +1 more source
TAXON, Volume 75, Issue 3, June 2026.Abstract Nicotiana sect. Suaveolentes is a group that has undergone recent and rapid radiation, a clade that originated ca. six million years ago and has since rapidly speciated throughout Australia, with a few taxa on Pacific Islands and one in Namibia (Africa). Post‐tetraploidisation, species in N. sect.
Charlotte Phillips +7 more
wiley +1 more source
C0-semigroups of linear operators on some ultrametric Banach spaces
International Journal of Mathematics and Mathematical Sciences, 2006 C0-semigroups of linear operators play a crucial role in the solvability of evolution equations in the classical context. This paper is concerned with a brief conceptualization of C0-semigroups on (ultrametric) free Banach spaces E.
Toka Diagana
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Notes on exchange interactions in holographic p-adic CFT
Physics Letters B, 2017 There is a renewed interest in conformal field theories (CFT) on ultrametric spaces (p-adic field and its algebraic extensions) in view of their natural adaptability to the holographic setting.
Parikshit Dutta +2 more
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Climatic Niche Modelling Reveals Limited Phylogenetic Niche Conservatism in New World Crocodylians
Journal of Biogeography, Volume 53, Issue 6, June 2026.ABSTRACT Aim Phylogenetic niche conservatism, the tendency of closely related species to retain ancestral ecological traits, has gained considerable interest, yet the lack of integration across independent evaluation methods has hindered our understanding of whether niches are conserved or dynamic.
Andrés L. Rodriguez‐Cordero +9 more
wiley +1 more source
Diffusion on locally compact ultrametric spaces
Expositiones Mathematicae, 2004 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
DEL MUTO M, FIGA' TALAMANCA, Alessandro
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Constructions of Urysohn Universal Ultrametric Spaces
p-Adic Numbers, Ultrametric Analysis and Applications, 2023 In this paper, we give new constructions of Urysohn universal ultrametric spaces. We first characterize a Urysohn universal ultrametric subspace of the space of all continuous functions whose images contain the zero, from a zero-dimensional compact Hausdorff space without isolated points into the space of non-negative real numbers equipped with the ...
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Max–min measures on ultrametric spaces
Topology and its Applications, 2013 The ultrametrization of the set of all probability measures of compact support on the ultrametric spaces was first defined by Hartog and de Vink. In this paper we consider a similar construction for the so called max-min measures on the ultrametric spaces. In particular, we prove that the functors max-min measures and idempotent measures are isomorphic.
Cencelj, Matija +2 more
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Karpatsʹkì Matematičnì Publìkacìï, 2018 The idempotent mathematics is a part of mathematics in which arithmetic operations in the reals are replaced by idempotent operations. In the idempotent mathematics, the notion of idempotent measure (Maslov measure) is a counterpart of the notion of ...
N. Mazurenko, M. Zarichnyi
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Journal of MathematicsThis study explores fixed points and common fixed points for self-mappings on ultrametric spaces, regardless of the assumption of spherical completeness.
N. Uthirasamy +4 more
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