An Example of a Simply Connected Surface Bounding a Region which is not Simply Connected

1924/01/01 by James Alexander · 4 citations
Environmental Science · Mathematics · #Ecology and Vegetation Dynamics Studies #Microbial Community Ecology and Physiology #Morphological variations and asymmetry #Bounding overwatch #Biosphere #Ecology #Glacier #Microbial population biology #Phylogenetic tree #Community structure #Community #Biology #Geography #Computer science #Ecosystem #Artificial intelligence #Paleontology #Bacteria #Gene

paper · doi:10.1073/pnas.10.1.8

openalex publication_date 1924/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans the biological, physical, and social sciences.

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