Results 91 to 100 of about 38,590 (214)
The Lefschetz-Hopf theorem and axioms for the Lefschetz number
Fixed Point Theory and Applications, 2004 The reduced Lefschetz number, that is, where denotes the Lefschetz number, is proved to be the unique integer-valued function on self-maps of compact polyhedra which is constant on homotopy classes such that (1) for and ; (2) if is a map of a ...
Brown Robert F, Arkowitz Martin
doaj
Lectotypifications and taxonomic changes in the holoparasitic Orobanchaceae
Nordic Journal of Botany, Volume 2026, Issue 8, August 2026.Based on further extensive studies of specimens in various herbaria, lectotypes are designated for many taxa of holoparasitic Orobanchaceae. In particular, 47 names in the genera Boschniakia (incl. Xylanche), Cistanche, Orobanche, Phelipanche and Phelypaea are lectotypified.
Holger Uhlich +5 more
wiley +1 more source
Some Krasnonsel'skiĭ-Mann Algorithms and the Multiple-Set Split Feasibility Problem
Fixed Point Theory and Applications, 2010 Some variable Krasnonsel'skiĭ-Mann iteration algorithms generate some sequences , , and , respectively, via the formula , , , where and the mod function takes values in , , , and are sequences in and are sequences of nonexpansive ...
Noor MuhammadAslam +2 more
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Nordic Journal of Botany, Volume 2026, Issue 8, August 2026.Names in the genus Pinguicula established for taxa from the Baltic and Nordic countries, including their oversea territories and Iceland, were analyzed to provide nomenclatural and taxonomic clarity. Of the 33 names retrieved from the literature and online databases, one is illegitimate, two are invalid and 16 were found to require typification.
Yoannis Domínguez
wiley +1 more source
Viscosity approximation fixed points for nonexpansive and
Fixed Point Theory and Applications, 2006 Let be a real reflexive Banach space, let be a closed convex subset of , and let be an -accretive operator with a zero. Consider the iterative method that generates the sequence by the algorithm where and are two sequences satisfying certain ...
Chen Rudong, Zhu Zhichuan
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TAXON, Volume 75, Issue 4, August 2026.Abstract The name Carludovica microcephala, basionym of the type species of Dicranopygium (Cyclanthaceae), has long been attributed to J.D. Hooker (1892), based on plants cultivated at the Royal Botanic Gardens, Kew. A reassessment of nineteenth‐century horticultural literature shows that the name had already been validly published 35 years earlier, in
Eduardo S. Leal +3 more
wiley +1 more source
An Iteration Method for Nonexpansive Mappings in Hilbert Spaces
Fixed Point Theory and Applications, 2007 In real Hilbert space , from an arbitrary initial point , an explicit iteration scheme is defined as follows: , where , is a nonexpansive mapping such that is nonempty, is a -strongly monotone and -Lipschitzian mapping, , and .
Wang Lin
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Contact Dermatitis, Volume 95, Issue 2, Page 125-147, August 2026.ABSTRACT Formaldehyde and its releasers are common preservatives and potent sensitizers. This meta‐analysis aimed to estimate the prevalence of formaldehyde contact allergy and allergy to its five most common releasers among dermatitis patients. Two authors independently searched PubMed, Embase, and Web of Science from inception to 30th September 2025.
Kian Karimian +5 more
wiley +1 more source
Fixed point theorems in
Fixed Point Theory and Applications, 2004 We show that if is a bounded open set in a complete space , and if is nonexpansive, then always has a fixed point if there exists such that for all . It is also shown that if is a geodesically bounded closed convex subset of a complete -tree with
Kirk WA
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Diabetes, Obesity and Metabolism, Volume 28, Issue 8, Page 7218-7226, August 2026.ABSTRACT Aims To identify frailty subtypes among African American adults with and without diabetes. Methods This analysis included data from 3979 African American men and women who enrolled in the Jackson Heart Study at baseline (Exam1: 2000–2004). To identify frailty subtypes, we selected 25 age‐related deficits in health and functional outcomes as ...
Felicia R. Simpson +5 more
wiley +1 more source