Results 41 to 50 of about 6,492,121 (341)
Topological Transversality Principles and General Coincidence Theory
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2017 This paper presents general topological coincidence principles for multivalued maps defined on subsets of completely regular topological spaces.
O’Regan Donal
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Electronic Journal of Qualitative Theory of Differential Equations, 2023 This paper deals with fundamental properties of Poincaré half-maps defined on a straight line for planar linear systems. Concretely, we focus on the analyticity of the Poincaré half-maps, their series expansions (Taylor and Newton–Puiseux) at the ...
Victoriano Carmona +3 more
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On the spectral mapping theorem for essential spectra
Publicacions Matemàtiques, 1985 B. Gramsch and D. Lay have studied spectral mapping theorems for the essential spectra of an operator acting in a complex Banach space. Firstly they consider operators belonging to the Banach algebra of all bounded linear operators on the space, and later they derive the theorems for unbounded closed linear operators with non-empty resolvent from the ...
González, M. +1 more
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On Polynomials Counting Essentially Irreducible Maps
The Electronic Journal of Combinatorics, 2022 We consider maps on genus-$g$ surfaces with $n$ (labeled) faces of prescribed even degrees. It is known since work of Norbury that, if one disallows vertices of degree one, the enumeration of such maps is related to the counting of lattice point in the moduli space of genus-$g$ curves with $n$ labeled points and is given by a symmetric polynomial $N_{g,
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Optimal maps in essentially non-branching spaces [PDF]
Communications in Contemporary Mathematics, 2017 In this paper we prove that in a metric measure space [Formula: see text] verifying the measure contraction property with parameters [Formula: see text] and [Formula: see text], any optimal transference plan between two marginal measures is induced by an optimal map, provided the first marginal is absolutely continuous with respect to [Formula: see ...
Fabio Cavalletti +2 more
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Abstract Leray–Schauder Type Alternatives and Extensions
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2019 We present a Leray–Schauder type alternative for a general class of maps. This enables us to obtain some Birkhoff–Kellogg type results and a Furi–Pera result.
O’Regan Donal
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Landsat-based remapping of the south-western Kalahari
Koedoe: African Protected Area Conservation and Science, 1990 Landsat-4 remote sensing is used to construct distortion-free maps of the almost trackless southern Kalahari Desert. These maps show the geography of natural pans, riverbeds and artificial water holes, and are improved versions of previous maps. The maps
J. du P. Bothma, D.R. Swart
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Journal of Lipid Research, 2020 A comprehensive and standardized system to report lipid structures analyzed by MS is essential for the communication and storage of lipidomics data. Herein, an update on both the LIPID MAPS classification system and shorthand notation of lipid structures
G. Liebisch +16 more
semanticscholar +1 more source
Leray–Schauder Alternatives for Maps Satisfying Countable Compactness Conditions
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2019 In this paper we present Leray–Schauder alternatives for a general class of Mönch type maps.
O’Regan Donal
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Coincidence classes in nonorientable manifolds
Fixed Point Theory and Applications, 2006 We study Nielsen coincidence theory for maps between manifolds of same dimension regardless of orientation. We use the definition of semi-index of a class, review the definition of defective classes, and study the occurrence of defective root classes. We
Daniel Vendrúscolo
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