Results 21 to 30 of about 365 (176)
ta ON ARTINIAN T0- ALEXANDROFF SPACES
, 2005 ta ON ARTINIAN T0- ALEXANDROFF ...
Mahdi, Hisham B., El-atrash, Mohammed S.
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Growth portfolios buffer climate‐linked environmental change in marine systems
Ecology, Volume 104, Issue 3, March 2023., 2023 Abstract Large‐scale, climate‐induced synchrony in the productivity of fish populations is becoming more pronounced in the world's oceans. As synchrony increases, a population's “portfolio” of responses can be diminished, in turn reducing its resilience to strong perturbation.
Steven E. Campana +19 more
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New Types of Alexandroff Lattice Spaces [PDF]
, 2017 In this paper, we introduce and investigate new types of Alexandroff spaces using well known types of posets; under the conditions that the corresponding poset is complete lattice, distributive lattice and Boolean Algebra. We present some results about these types.
Mahdi, Hisham B., Othman, Heba A.
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Primal Topologies on Finite‐Dimensional Vector Spaces Induced by Matrices
International Journal of Mathematics and Mathematical Sciences, Volume 2023, Issue 1, 2023., 2023 Given an matrix A, considered as a linear map A : ℝn⟶ℝn, then A induces a topological space structure on ℝn which differs quite a lot from the usual one (induced by the Euclidean metric). This new topological structure on ℝn has very interesting properties with a nice special geometric flavor, and it is a particular case of the so called “primal space,”
Luis Mejías +4 more
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On the cohomology of arrangements of subtori
Journal of the London Mathematical Society, Volume 106, Issue 3, Page 1999-2029, October 2022., 2022 Abstract Given an arrangement of subtori of arbitrary codimension in a complex torus, we compute the cohomology groups of the complement. Then, by using the Leray spectral sequence, we describe the multiplicative structure on the associated graded cohomology. We also provide a differential model for the cohomology ring, by considering a toric wonderful
Luca Moci, Roberto Pagaria
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When is a monotone function cyclically monotone?
Theoretical Economics, Volume 16, Issue 3, Page 853-879, July 2021., 2021 We provide sufficient conditions for a monotone function with a finite set of outcomes to be cyclically monotone. Using these conditions, we show that any monotone function defined on the domain of gross substitutes is cyclically monotone. The result also extends to the domain of generalized gross substitutes and complements.
Alexey I. Kushnir, Lev V. Lokutsievskiy
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Error estimation for second‐order partial differential equations in nonvariational form
Numerical Methods for Partial Differential Equations, Volume 37, Issue 3, Page 2190-2221, May 2021., 2021 Abstract Second‐order partial differential equations (PDEs) in nondivergence form are considered. Equations of this kind typically arise as subproblems for the solution of Hamilton–Jacobi–Bellman equations in the context of stochastic optimal control, or as the linearization of fully nonlinear second‐order PDEs. The nondivergence form in these problems
Jan Blechschmidt +2 more
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Quasihomeomorphisms and Some Topological Properties
Mathematics, 2023 In this paper, we study the properties of topological spaces preserved by quasihomeomorphisms. Particularly, we show that quasihomeomorphisms preserve Whyburn, weakly Whyburn, submaximal and door properties.
Khedidja Dourari +4 more
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Minimal Structure and Related Alexandroff Spaces [PDF]
, 2014 Alexandroff topological space is a kind of topology which satisfies a stronger condition. Namely, arbitrary intersections of open sets is open. The main aim of this thesis is to study the concepts of an Alexandroff topological spaces which related to a family of subsets of a nonempty set called minimal structure. We study some families of a new type of
Asad, Asmaa Asad
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A New Approach to Concavity Fuzzification
Journal of Mathematics, Volume 2021, Issue 1, 2021., 2021 In this paper, we introduce a more general approach to the fuzzification of fuzzy concavity. More specifically, the degree of (L, M)‐fuzzy concavity is introduced and characterized as a generalization of L‐concave structure and (L, M)‐fuzzy concave structure.
Ibtesam Alshammari +3 more
wiley +1 more source