Results 21 to 30 of about 30,772 (141)
Pathogens, 2021 The relationship between housekeeping and pathogenicity-related genes and virulence or avirulence towards the primary Malus resistance genes (R) has not been previously studied for Venturia inaequalis fungus, the causal agent of apple scab. In this study,
Monika Michalecka, Joanna Puławska
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GROUPS ACTING ON TREES WITH PRESCRIBED LOCAL ACTION
Journal of the Australian Mathematical Society, 2022 AbstractWe extend the Burger–Mozes theory of closed, nondiscrete, locally quasiprimitive automorphism groups of locally finite, connected graphs to the semiprimitive case, and develop a generalization of Burger–Mozes universal groups acting on the regular tree $T_{d}$ of degree $d\in \mathbb {N}_{\ge 3}$ . Three applications are given.
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On the Positive Theory of Groups Acting on Trees [PDF]
International Mathematics Research Notices, 2020 Abstract In this paper, we study the positive theory of groups acting on trees and show that under the presence of weak small cancellation elements, the positive theory of the group is trivial, that is, coincides with the positive theory of a non-abelian free group.
Casals-Ruiz, Montserrat +2 more
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Scientia Agricola, 2010 Ecological theories of facilitation and nucleation are proposed as a basis for environmental restoration in tropical ecosystems. The main goal of this paper is to present restoration techniques based on the concept of nucleation, in which small nuclei of
Ademir Reis +2 more
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Zeta Functions of Discrete Groups Acting on Trees
Journal of Algebra, 2001 This paper generalizes Bass' work on zeta functions for uniform tree lattices. Using the theory of von Neumann algebras, machinery is developed to define the zeta function of a discrete group of automorphisms of a bounded degree tree. The main theorems relate the zeta function to determinants of operators defined on edges or vertices of the tree.
Clair, Bryan, Mokhtari-Sharghi, Shahriar
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Highly transitive actions of groups acting on trees [PDF]
Proceedings of the American Mathematical Society, 2015 We show that a group acting on a non-trivial tree with finite edge stabilizers and icc vertex stabilizers admits a faithful and highly transitive action on an infinite countable set. This result is actually true for infinite vertex stabilizers and some more general, finite of infinite, edge stabilizers that we call highly core-free. We study the notion
Fima, Pierre +2 more
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Group C*-Algebras of Locally Compact Groups Acting on Trees
International Mathematics Research Notices, 2023 Abstract It was proved by Samei and Wiersma that for every non-compact, closed subgroup $G$ of the automorphism group $\textrm {Aut}(T)$ of a (semi-)homogeneous tree $T$ acting transitively on the boundary $\partial T$ and every $2 \leq q < p \leq \infty $, the quotient map $C^{\ast }_{L^{p+}}(G) \twoheadrightarrow C^{\ast }_{L^{q+
Heinig, Dennis +2 more
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Identifying Significant Features in Cancer Methylation Data Using Gene Pathway Segmentation
Cancer Informatics, 2016 In order to provide the most effective therapy for cancer, it is important to be able to diagnose whether a patient's cancer will respond to a proposed treatment.
Zena M. Hira, Duncan F. Gillies
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CHABAUTY LIMITS OF SIMPLE GROUPS ACTING ON TREES [PDF]
Journal of the Institute of Mathematics of Jussieu, 2018 Let$T$be a locally finite tree without vertices of degree $1$. We show that among the closed subgroups of$\text{Aut}(T)$acting with a bounded number of orbits, the Chabauty-closure of the set of topologically simple groups is the set of groups without proper open subgroup of finite index.
Caprace, Pierre-Emmanuel, Radu, Nicolas
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Climate Change and the PSO-HNS
Philippine Journal of Otolaryngology Head and Neck Surgery, 2008 Times have changed and seasons have changed. I remember with nostalgia the cool December mornings of my childhood, the predictable rains, the smell of clean air in open city spaces, and the sight of stars in the evening sky.
Anne Marie V. Espiritu
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