Hyperbolic geometry (English Wikipedia)

Eves, Howard (2012), Foundations and Fundamental Concepts of Mathematics, Courier Dover Publications, p. 59, ISBN 9780486132204, We also owe to Lambert the first systematic development of the theory of hyperbolic functions and, indeed, our present notation for these functions.
Ratcliffe, John (2006), Foundations of Hyperbolic Manifolds, Graduate Texts in Mathematics, vol. 149, Springer, p. 99, ISBN 9780387331973, That the area of a hyperbolic triangle is proportional to its angle defect first appeared in Lambert's monograph Theorie der Parallellinien, which was published posthumously in 1786.

bridgesmathart.org

archive.bridgesmathart.org

Fong, C. (2016). The Conformal Hyperbolic Square and Its Ilk (PDF). Bridges Finland Conference Proceedings.

columbia.edu

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"Non-Euclidean Geometry Seminar". Math.columbia.edu. Retrieved 21 January 2018.

doi.org

Hyde, S.T.; Ramsden, S. (2003). "Some novel three-dimensional Euclidean crystalline networks derived from two-dimensional hyperbolic tilings". The European Physical Journal B. 31 (2): 273–284. Bibcode:2003EPJB...31..273H. CiteSeerX 10.1.1.720.5527. doi:10.1140/epjb/e2003-00032-8. S2CID 41146796.
Wood, Donald (April 1959). "Some Greek stereotypes of other peoples". Race. 1 (2): 65–71. doi:10.1177/030639685900100207.
Gans David (March 1966). "A New Model of the Hyperbolic Plane". American Mathematical Monthly. 73 (3): 291–295. doi:10.2307/2315350. JSTOR 2315350.

geometrygames.org

"How to sew a Hyperbolic Blanket". Geometrygames.org. Retrieved 21 January 2018.

harvard.edu

ui.adsabs.harvard.edu

Hyde, S.T.; Ramsden, S. (2003). "Some novel three-dimensional Euclidean crystalline networks derived from two-dimensional hyperbolic tilings". The European Physical Journal B. 31 (2): 273–284. Bibcode:2003EPJB...31..273H. CiteSeerX 10.1.1.720.5527. doi:10.1140/epjb/e2003-00032-8. S2CID 41146796.

helasculpt.com

"Helaman Ferguson, Hyperbolic Quilt". Archived from the original on 2011-07-11.

jstor.org

Gans David (March 1966). "A New Model of the Hyperbolic Plane". American Mathematical Monthly. 73 (3): 291–295. doi:10.2307/2315350. JSTOR 2315350.

kb.se

urn.kb.se

Thorgeirsson, Sverrir (2014). Hyperbolic geometry: history, models, and axioms.

learner.org

"Mathematics Illuminated - Unit 8 - 8.8 Geometrization Conjecture". Learner.org. Retrieved 21 January 2018.

matrixeditions.com

"2" (PDF). Teichmüller theory and applications to geometry, topology, and dynamics. Hubbard, John Hamal. Ithaca, NY: Matrix Editions. 2006–2016. p. 25. ISBN 9780971576629. OCLC 57965863.{{cite book}}: CS1 maint: others (link)

psu.edu

citeseerx.ist.psu.edu

Hyde, S.T.; Ramsden, S. (2003). "Some novel three-dimensional Euclidean crystalline networks derived from two-dimensional hyperbolic tilings". The European Physical Journal B. 31 (2): 273–284. Bibcode:2003EPJB...31..273H. CiteSeerX 10.1.1.720.5527. doi:10.1140/epjb/e2003-00032-8. S2CID 41146796.

resonancepub.com

See for instance, "Omar Khayyam 1048–1131". Archived from the original on 2007-09-28. Retrieved 2008-01-05.

semanticscholar.org

api.semanticscholar.org

Hyde, S.T.; Ramsden, S. (2003). "Some novel three-dimensional Euclidean crystalline networks derived from two-dimensional hyperbolic tilings". The European Physical Journal B. 31 (2): 273–284. Bibcode:2003EPJB...31..273H. CiteSeerX 10.1.1.720.5527. doi:10.1140/epjb/e2003-00032-8. S2CID 41146796.

stackexchange.com

math.stackexchange.com

"Curvature of curves on the hyperbolic plane". math stackexchange. Retrieved 24 September 2017.

tamu.edu

math.tamu.edu

"Hyperbolic Football". Math.tamu.edu. Retrieved 21 January 2018.

telegraph.co.uk

Bloxham, Andy (March 26, 2010). "Crocheting Adventures with Hyperbolic Planes wins oddest book title award". The Telegraph.

theiff.org

"Hyperbolic Space". The Institute for Figuring. December 21, 2006. Retrieved January 15, 2007.
"How to Build your own Hyperbolic Soccer Ball" (PDF). Theiff.org. Retrieved 21 January 2018.

umn.edu

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vcoit (8 May 2015). "Computer Science Department" (PDF).

web.archive.org

See for instance, "Omar Khayyam 1048–1131". Archived from the original on 2007-09-28. Retrieved 2008-01-05.
"Helaman Ferguson, Hyperbolic Quilt". Archived from the original on 2011-07-11.

worldcat.org

search.worldcat.org

"2" (PDF). Teichmüller theory and applications to geometry, topology, and dynamics. Hubbard, John Hamal. Ithaca, NY: Matrix Editions. 2006–2016. p. 25. ISBN 9780971576629. OCLC 57965863.{{cite book}}: CS1 maint: others (link)