Essential mappings and transfinite dimension [PDF]
Fundamenta Mathematicae, 1985 If \(\alpha\) is a countable ordinal, \(J^{\alpha}\) is \textit{D. W. Henderson}'s \(\alpha\)-dimensional absolute retract [ibid. 63, 167-173 (1968; Zbl 0167.513)] and Ind \(X\geq \alpha\), is there an essential \(f: X\to J^{\alpha}?\) The authors answer this question in the affirmative if \(\alpha =\omega\) and X is normal and in the negative if ...
Borst, P., Dijkstra, J. J.
openaire +2 more sources
How 2.5D Maps Design Improve the Wayfinding Performance and Spatial Ability of Map Users
Informatics, 2021 Useful information can be provided by 2.5D maps that can take advantage of the additional dimension. However, aside from stereoscopic landmarks, optimal methods for presenting other essential information is unclear.
Meng-Cong Zheng, Yi-Wen Hsu
doaj +1 more source
Getting to the point? Rethinking arrows on maps [PDF]
, 2023 Maps help to form public opinion and build public morale. When the war is over, they will contribute to shaping the thought and action of those responsible for the reconstruction of a shattered world.
Kent, A., Cheshire, J.
core +1 more source
On the Importance of Countergradients for the Development of Retinotopy: Insights from a Generalised Gierer Model [PDF]
, 2013 During the development of the topographic map from vertebrate retina to superior colliculus (SC), EphA receptors are expressed in a gradient along the nasotemporal retinal axis. Their ligands, ephrin-As, are expressed in a gradient along the rostrocaudal
David C Sterratt +3 more
core +1 more source
Some General Theorems for Compact Acyclic Multifunctions
Mathematics, 2019 We present general Leray-Schauder type theorems for compact acyclic Multifunctions, using the topological transversality theorem by the author.
Donal O’Regan
doaj +1 more source
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
doaj +1 more source
High-Precision Depth Map Estimation from Missing Viewpoints for 360-Degree Digital Holography
Applied Sciences, 2022 In this paper, we propose a novel model to extract highly precise depth maps from missing viewpoints, especially for generating holographic 3D content. These depth maps are essential elements for phase extraction, which is required for the synthesis of ...
Hakdong Kim +5 more
doaj +1 more source
Unsupervised clustering using diffusion maps for local shape modelling [PDF]
, 2009 Understanding the biological variability of anatomical objects, is essential for statistical shape analysis and to distinguish between healthy and pathological structures.
Bhalerao, Abhir +3 more
core +1 more source
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
doaj +1 more source
IMPLEMENTING NATURAL RESOURCES CADASTRAL PLAN IN PASARGADAE DISTRICT OF IRAN BY USING QUICK BIRD IMAGES [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015 Natural Resources are essential for security and sustainable development of each country. Therefore, in order to reach sustainable development, conservation as well as optimum utilization of natural resources, executing of natural resources cadastral ...
G. H. Azhdari, K. Deilami, E. Firooznia
doaj +1 more source