Results 81 to 90 of about 1,025,793 (179)

Discrete Yamabe Problem for Polyhedral Surfaces. [PDF]

open access: yesDiscrete Comput Geom, 2023
Dal Poz Kouřimská H.
europepmc   +1 more source

Lobachevsky’s geometry [PDF]

open access: yesBulletin of the American Mathematical Society, 1900
openaire   +3 more sources

Regular octagons in Poincare model of Lobachevsky geometry

open access: yes
To investigate the topological structure of Morse flows on the 2-disk we use the planar graphs as destinguished graph of the flow. We assume, that the flow is transversal to the boundary of the 2-disk. We give a list of all planar graph with at least 3 edges and describe all planar graphs with 4 edges.
openaire   +2 more sources

Hình học lobachevsky và ứng dụng

open access: yes
Khóa luận Tốt nghiêp - Khoa Toán học - Lớp: 20ST2Bước đầu làm quen với nghiên cứu khoa học, trình bày hệ tiên đề về hình học Lobachevsky và đưa ra được một số ứng dụng của nó.1 Kiến thức cơ sở. 2 Hình học Lobachevsky. 3 Ứng dụng của Hình học Lobachevsky.
Phan, Thị Ngân
core  

Sources of hyperbolic geometry

open access: yes, 1996
This book presents, for the first time in English, the papers of Beltrami, Klein, and Poincaré that brought hyperbolic geometry into the mainstream of mathematics.
John Stillwell, Stillwell, John
core   +1 more source

Amide-Containing Bottlebrushes via Continuous-Flow Photoiniferter Reversible Addition-Fragmentation Chain Transfer Polymerization: Micellization Behavior. [PDF]

open access: yesPolymers (Basel), 2023
Sivokhin A   +10 more
europepmc   +1 more source

Editorial: Toward and beyond human-level AI, volume II. [PDF]

open access: yesFront Neurorobot, 2022
Dunin-Barkowski W, Gorban A.
europepmc   +1 more source

Hyperbolic geometry in the work of Johann Heinrich Lambert

open access: yes, 2014
International audienceThe memoir Theorie der Parallellinien (1766) by Johann Heinrich Lambert is one of the founding texts of hyperbolic geometry, even though its author's aim was, like many of his predecessors', to prove that such a geometry does not ...
Papadopoulos, Athanase   +1 more
core   +2 more sources

Cusp Density and Commensurability of Non-arithmetic Hyperbolic Coxeter Orbifolds. [PDF]

open access: yesDiscrete Comput Geom, 2023
Dotti E, Drewitz ST, Kellerhals R.
europepmc   +1 more source

Exploring Ethnomathematics: Understanding Lobachevsky Geometry through Traditional Fishing Tools of the Bengkulu People

open access: yesASM Science Journal
This research bridges a gap in ethnomathematics by exploring non -Euclidean geometry through local culture. We demonstrate that the abstract concepts of Lobachevsky geometry can be intuitively understood using bubu, a traditional Bengkulu fishing trap.
Bambang Eko Susilo   +3 more
openaire   +1 more source

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