User:Jacobolus/Double

Resources about the "double numbers", a.k.a. "hyperbolic numbers", "split-complex numbers", "perplex numbers", ...

Reany, Patrick. "Complex clifford algebra and Nth-order linear differential equations." Advances in Applied Clifford Algebras 3 (1993): 121-127.

real tessarines:

Cockle, James (1849) On a New Imaginary in Algebra 34:37–47, London-Edinburgh-Dublin Philosophical Magazine (3) 33:435–9

pseudo-complex numbers:

Schäfer, M., Hess, P. O., & Greiner, W. (2014). Geometry of pseudo-complex General Relativity. Astronomische Nachrichten, 335(6-7), 751–756. doi:10.1002/asna.201412104
Hess, Peter O., Leila Maghlaoui, and Walter Greiner. "The Robertson–Walker metric in a pseudo-complex general relativity." International Journal of Modern Physics E 19, no. 07 (2010): 1315-1339. doi:10.1142/S021830131001576X

semi-complex numbers:

Antonuccio, Francesco (1993). "Semi-Complex Analysis & Mathematical Physics" arXiv:gr-qc/9311032

hypercomplex numbers:

Azri, Hemza, and A. Bounames. "Geometrical origin of the cosmological constant." General Relativity and Gravitation 44 (2012): 2547-2561. 10.1007/s10714-012-1413-9

bireal numbers:

Bencivenga, Uldrico (1946) "Sulla rappresentazione geometrica delle algebre doppie dotate di modulo", Atti della Reale Accademia delle Scienze e Belle-Lettere di Napoli, Ser (3) v.2 No7.

anormal-complex numbers:

W. Benz (1973). Vorlesungen über Geometrie der Algebren, Springer, Berlin.

spacetime numbers:

N. Borota, E. Flores and T. J. Osler (2000). Spacetime numbers the easy way, Mathematics and Computer Education, Vol. 34, No. 2, pp. 159-168.

duplex numbers:

Kocik, Jerzy (1999). "Duplex numbers, diffusion systems, and generalized quantum mechanics." International Journal of Theoretical Physics 38, no. 8: 2221-2230. doi:10.1023/A:1026678408244 (arXiv version has: Although the text is not altered, the author now prefers term “hyperbolic numbers” over the original ”duplex numbers”)
Kocik, Jerzy (2013). "A porism concerning cyclic quadrilaterals." Geometry 2013. doi:10.1155/2013/483727

paracomplex numbers:

Cruceanu, Vasile, Pedro Fortuny, and Pedro M. Gadea. "A survey on paracomplex geometry." The Rocky Mountain Journal of Mathematics 26, no. 1 (1996): 83-115. https://core.ac.uk/download/pdf/36026973.pdf
Cartas-Fuentevilla, R., and O. Meza-Aldama (2016). "Spontaneous symmetry breaking, and strings defects in hypercomplex gauge field theories." The European Physical Journal C 76: 1-22. doi:10.1140/epjc/s10052-016-3944-9
Médevielle, M., T. Mohaupt, and G. Pope (2022). "Type-II Calabi-Yau compactifications, T-duality and special geometry in general spacetime signature." Journal of High Energy Physics 2022, no. 2: 1-42. doi:10.1007/JHEP02(2022)048

countercomplex numbers:

Musès, C. (1977). Applied hypernumbers: computational concepts. Applied Mathematics and Computation, 3(3), 211–226. doi:10.1016/0096-3003(77)90002-9
Musès, C. (1980). Hypernumbers and quantum field theory with a summary of physically applicable hypernumber arithmetics and their geometries. Applied Mathematics and Computation, 6(1), 63–94. doi:10.1016/0096-3003(80)90016-8
Carmody, K. (1988). Circular and hyperbolic quaternions, octonions, and sedenions. Applied Mathematics and Computation, 28(1), 47-72.
Carmody, K. (1997). Circular and hyperbolic quaternions, octonions, and sedenions—Further results. Applied Mathematics and Computation, 84(1), 27–47. doi:10.1016/s0096-3003(96)00051-3

perplex numbers:

P. Fjelstad, Extending special relativity via the perplex numbers, Am. J. Phys. 54 (1986), pp. 416–422. doi:10.1119/1.14605
Band, William (1988). "Comments on ‘‘Extending relativity via the perplex numbers’’[Am. J. Phys. 5 4, 416 (1986)]." American Journal of Physics 56, no. 5: 469-469. doi:10.1119/1.15582
Assis, A. K. T. (1991). "Perplex numbers and quaternions." International Journal of Mathematical Education in Science and Technology 22, no. 4: 555-562. doi:10.1080/0020739910220406
Poodiack, Robert D., and Kevin J. LeClair (2009). "Fundamental theorems of algebra for the perplexes." The College Mathematics Journal 40, no. 5: 322-336. doi:10.4169/074683409X475643
Sporn, Howard (2017). "Pythagorean triples, complex numbers, and perplex numbers." The College Mathematics Journal 48, no. 2: 115-122.
Amorim, Ronni Geraldo Gomes de, Wytler Cordeiro dos Santos, Lindomar Bonfim Carvalho, and Ian Rodrigues Massa (2018). "A physical approach of perplex numbers." Revista Brasileira de Ensino de Física 40. doi:10.1590/1806-9126-RBEF-2017-0356
Ponomarenko, Vadim (2022). "Factorization of Perplex Integers." The American Mathematical Monthly 129, no. 6: 576-581. doi:10.1080/00029890.2022.2051406

Lorentz numbers:

Harvey, F. Reese (1990). Spinors and calibrations. Vol. 8. Elsevier.
Catoni, F. (1994). Riemann flat spaces, hypercomplex numbers and general relativity. No. ENEA-RT-ERG-94-05. P00024673. https://cds.cern.ch/record/266546/files/P00024673.pdf
Kimura, Makoto (2003). "Space of geodesics in hyperbolic spaces and Lorentz numbers." Mem. Fac. Sci. Eng. Shimane Univ. Ser. B Math. Sci 36: 61-67. http://www.math.shimane-u.ac.jp/memoir/36/bull1.pdf
Terlizzi, Luigia Di, Jerzy Julian Konderak, and Ignazio Lacirasella (2014). "On differentable functions over Lorentz numbers and their geometric applications." Differential Geometry--Dynamical Systems 16. http://www.mathem.pub.ro/dgds/v16/D16-di-890.pdf
Bayard, Pierre, and Victor Patty (2015). "Spinor representation of Lorentzian surfaces in R2, 2." Journal of Geometry and Physics 95: 74-95. doi:10.1016/j.geomphys.2015.05.002
Salvai, Marcos (2015). "Generalized geometric structures on complex and symplectic manifolds." Annali di Matematica Pura ed Applicata 194, no. 5: 1505-1525.
Da Silva, Luiz CB (2017). "Rotation minimizing frames and spherical curves in simply isotropic and pseudo-isotropic 3-spaces." arXiv preprint arXiv:1707.06321
Kassabov, Ognian, and Velichka Milousheva (2020). "Weierstrass Representations of Lorentzian Minimal Surfaces in R 2 4." Mediterranean Journal of Mathematics 17, no. 6: 199. doi:10.1007/s00009-020-01636-x
da Silva, Luiz CB (2021). "Surfaces of revolution with prescribed mean and skew curvatures in Lorentz-Minkowski space". Tohoku Math. J. 73 (2021) 317-319; doi:10.2748/tmj.20190729 arXiv:1804.00259

split-complex numbers

Inoguchi, Jun-ichi, and Magdalena Toda (2004). "Timelike minimal surfaces via loop groups." Acta Applicandae Mathematicae 83: 313-355. doi:10.1023/B:ACAP.0000039015.45368.f6 arxiv:0409073
Mondoc, Daniel (2007). "Compact exceptional simple Kantor triple systems defined on tensor products of composition algebras." Communications in Algebra 35, no. 11: 3699-3712. doi:10.1080/00927870701404739
Kunegis, Jérôme, Gerd Gröner, and Thomas Gottron (2012). "Online dating recommender systems: The split-complex number approach." In Proceedings of the 4th ACM RecSys workshop on Recommender systems and the social web, pp. 37-44. doi:10.1145/2365934.2365942
Petoukhov, S. V. (2012). "Symmetries of the genetic code, hypercomplex numbers and genetic matrices with internal complementarities." Symmetry: Culture and Science 23, no. 3-4: 275-301.
Gao, Changjun, Xuelei Chen, and You-Gen Shen (2016). "Quintessence and phantom emerging from the split-complex field and the split-quaternion field." General Relativity and Gravitation 48: 1-23.

split complex numbers

Rosenfeld, B. A. (1988). "Groups of Transformations." A History of Non-Euclidean Geometry: Evolution of the Concept of a Geometric Space: 327-381. doi:10.1007/978-1-4419-8680-1_9
Yokota, Ichiro. "Realizations of Involutive Automorphisms σ and Gσ of Exceptional Linear Lie Groups G, PART I, G= G₂. F₄ AND E₆." Tsukuba journal of mathematics 14, no. 1 (1990): 185-223.
Shaw, Ronald (1990). "Ternary composition algebras II. Automorphism groups and subgroups." Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences 431, no. 1881: 21-36. doi:10.1098/rspa.1990.0116
Rosenfeld, Boris A. (1993). "Spaces with exceptional fundamental groups." Publications de l’Institut Mathématique, nouvelle série 54, no. 68: 97-119. http://elib.mi.sanu.ac.rs/files/journals/publ/74/n068p097.pdf
Rosenfeld, B. A. (1998). "Geometry of planes over nonassociative algebras." Acta Applicandae Mathematica 50: 103-110. doi:10.1023/A:1005871202247
Fischbacher, Thomas, Hermann Nicolai, and Henning Samtleben (2004). "Non-semisimple and complex gaugings of N= 16 supergravity." Communications in mathematical physics 249, no. 3: 475-496. doi:10.1007/s00220-004-1081-z
Matvei Libine (2007). Hyperbolic Cauchy Integral Formula for the Split Complex Numbers. arXiv:0712.0375.
Günaydin, Murat, and Oleksandr Pavlyk (2009). "Quasiconformal realizations of E6 (6), E7 (7), E8 (8) and SO (n+ 3, m+ 3), N≥ 4 supergravity and spherical vectors." Advances in Theoretical and Mathematical Physics 13, no. 6: 1895. arxiv:0904.0784
Boi, L. (2009). "Clifford geometric algebras, spin manifolds, and group actions in mathematics and physics". Advances in applied Clifford algebras, 19, pp. 611-656. doi:10.1007/s00006-009-0199-7
Sahay, Anurag, and Amitabh Virmani (2013). "Subtracted geometry from Harrison transformations: II." Journal of High Energy Physics 2013, no. 7: 1-16. doi:10.1007/JHEP07(2013)089
Emanuello, J. A., & Nolder, C. A. (2014). Projective Compactification of $\mathbb {R} ^{1,1}$ and Its Möbius Geometry. Complex Analysis and Operator Theory, 9(2), 329–354. doi:10.1007/s11785-014-0363-5
Dray, Tevian, John Huerta, and Joshua Kincaid (2014). "The magic square of Lie groups: The 2×2 case." Letters in Mathematical Physics 104: 1445-1468. doi:10.1007/s11005-014-0720-3
Estévez, Pilar G., Francisco Jose Herranz, Javier de Lucas, and Cristina Sardón (2016). "Lie symmetries for Lie systems: applications to systems of ODEs and PDEs." Applied Mathematics and Computation 273: 435-452. doi:10.1016/j.amc.2015.09.078 arxiv:1404.2740
Wickstead, A. W. (2017). "Two dimensional unital Riesz algebras, their representations and norms." Positivity 21, no. 2: 787-801.
Gogioso, Stefano (2017). "Fantastic quantum theories and where to find them." arxiv:1703.10576
Fioresi, Rita, Emanuele Latini, and Alessio Marrani (2017). "Klein and conformal superspaces, split algebras and spinor orbits." Reviews in Mathematical Physics 29, no. 04: 1750011. doi:10.1142/S0129055X17500118
Ghiloni, Riccardo, Alessandro Perotti, and Caterina Stoppato (2017). "The algebra of slice functions." Transactions of the American Mathematical Society 369, no. 7: 4725-4762. doi:10.1090/tran/6816
Elliott, Jesse (2018). "Integer-valued polynomials on commutative rings and modules." Communications in Algebra 46, no. 3: 1121-1137. doi:10.1080/00927872.2017.1388811 arxiv:1608.00171
Couto, Ivo Terek, and Alexandre Lymberopoulos (2021). Introduction to Lorentz geometry: curves and surfaces. CRC Press.
Krasnov, Kirill (2022). "Spin (11, 3), particles, and octonions." Journal of Mathematical Physics 63, no. 3: 031701. doi:10.1063/5.0070058

complex hyperbolic numbers:

Akar, Mutlu, Salim Yüce, and S. Sahin (2018). "On the dual hyperbolic numbers and the complex hyperbolic numbers." Journal of Computer Science & Computational Mathematics 8, no. 1: 1-6. https://www.jcscm.net/fp/126.pdf

hyperbolic complex numbers:

Durañona Vedia A. and J. C. Vignaux (1935), “Theory of functions of a hyperbolic complex variable”, Publ, de Facultad Ciencias Fisiciomatematicas Contrib. (Universidad Nacional de La Plata - Argentina) 104: 139–183.
Vignaux, J.(1935) "Sobre el numero complejo hiperbolico y su relacion con la geometria de Borel", Contribucion al Estudio de las Ciencias Fisicas y Matematicas, Universidad Nacional de la Plata, Republica Argentina
Cree, George C. (1949). The Number Theory of a System of Hyperbolic Complex Numbers (MA thesis). McGill University.
Kunstatter, G., Moffat, J. W., & Malzan, J. (1983). Geometrical interpretation of a generalized theory of gravitation. Journal of Mathematical Physics, 24(4), 886–889. doi:10.1063/1.525777
Zhong, Z. (1985). Generation of new solutions of the stationary axisymmetric Einstein equations by a double complex function method. Journal of Mathematical Physics, 26(10), 2589–2595. doi:10.1063/1.526972
Lambert, D., & Tombal, P. (1987). Hyperbolic complex numbers and nonlinear sigma models. International Journal of Theoretical Physics, 26(10), 943–950. doi:10.1007/bf00670818
Piette, Bernard, and Wojciech J. Zakrzewski (1990). "Finite energy solutons for (1+ 1)‐dimensional σ models." Journal of Mathematical Physics 31, no. 4: 916-923. doi:10.1063/1.528772
Hucks, Joseph (1993). "Hyperbolic complex structures in physics." Journal of mathematical physics 34, no. 12: 5986-6008. doi:10.1063/1.530244
Gal, S. G. (1997). "Approximation and interpolation of functions of hyperbolic complex variable." Rev. Un. Mat. Argentina 40, no. 3-4: 25-35. https://www.inmabb.criba.edu.ar/revuma/pdf/v40n3y4/v40n3y4a03.pdf
Fjelstad, Paul, and Sorin G. Gal (2001). "Two-dimensional geometries, topologies, trigonometries and physics generated by complex-type numbers." Advances in Applied Clifford Algebras 11: 81-107. doi:10.1007/BF03042040
Apostolova, L. N., Krastev, K. I., Kiradjiev, B., Venkov, G., Kovacheva, R., & Pasheva, V. (2009). Hyperbolic double-complex numbers. AIP Conference Proceedings 1184, 193. doi:10.1063/1.3271614
Jakubska-Busse, Anna, M. W. Janowicz, Luiza Ochnio, and J. M. A. Ashbourn (2018). "Pickover biomorphs and non-standard complex numbers." Chaos, Solitons & Fractals 113: 46-52. doi:10.1016/j.chaos.2018.05.001
Veldsman, Stefan (2019). "Generalized complex numbers over near-fields." Quaestiones Mathematicae 42, no. 2: 181-200. doi:10.2989/16073606.2018.1442884

real hyperbolic numbers:

Smith, Norman E. (1949). Introduction to Hyperbolic Number Theory (MA thesis). McGill University.

hyperbolic numbers:

Miller, William, and Rochelle Boehning (1968). "Gaussian, parabolic, and hyperbolic numbers." The Mathematics Teacher 61, no. 4: 377-382. doi:10.5951/MT.61.4.0377
Lavrentiev, Mikhail, and Boris Chabat (1980). Effets hydrodynamiques et modèles mathématiques. Mir.
G. Sobczyk (1995). The hyperbolic number plane. The College Math. J., 26:268–280.
Smith, Tim (1996). "The Hyperbolic Number Plane and its Application to Lorentzian Geometry." https://inspire.redlands.edu/work/ns/e4eff62a-470b-4428-aca0-45338a0ea7b9
Motter, A. E., & Rosa, M. A. F. (1998). Hyperbolic Calculus. Advances in Applied Clifford Algebras, 8(1), 109–128. doi:10.1007/bf03041929
Antonuccio, Francesco (1998). "Hyperbolic numbers and the Dirac spinor." arXiv:hep-th/9812036
Buchholz, S., & Sommer, G. (2000). A hyperbolic multilayer perceptron. Proceedings of the IEEE-INNS-ENNS International Joint Conference on Neural Networks. IJCNN 2000. Neural Computing: New Challenges and Perspectives for the New Millennium. doi:10.1109/ijcnn.2000.857886
Gogberashvili, Merab (2002). "Observable algebra." arXiv:hep-th/0212251
Rochon, Dominic, and Michael Shapiro (2004). "On algebraic properties of bicomplex and hyperbolic numbers." Anal. Univ. Oradea, fasc. math 11, no. 71: 110. http://3dfractals.com/docs/Article01_bicomplex.pdf
Catoni, Francesco, Roberto Cannata, Vincenzo Catoni, and Paolo Zampetti. "Two-dimensional hypercomplex numbers and related trigonometries and geometries." Advances in Applied Clifford Algebras 14, no. 1 (2004): 47-68.
Rochon, Dominic, and Sebastien Tremblay (2005). "Bicomplex quantum mechanics: II. The Hilbert space." arxiv:quant-ph/0510203
Khrennikov, Andrei, and Gavriel Segre (2005). "An introduction to hyperbolic analysis." arxiv:math-ph/0507053
Catoni, Francesco, Roberto Cannata, Vincenzo Catoni, and Paolo Zampetti (2005). "Hyperbolic trigonometry in two-dimensional space-time geometry." arXiv:math-ph/0508011
Catoni, Francesco, Roberto Cannata, Vincenzo Catoni, and Paolo Zampetti (2005). "Lorentz surfaces with constant curvature and their physical interpretation." arXiv:math-ph/0508012
Yamaleev, Robert M. (2005). "Complex algebras on n-order polynomials and generalizations of trigonometry, oscillator model and Hamilton dynamics." Advances in Applied Clifford Algebras 15: 123-150. doi:10.1007/s00006-016-0680-z
Ulrych, S. (2005). Relativistic quantum physics with hyperbolic numbers. Physics Letters B, 625(3-4), 313–323. doi:10.1016/j.physletb.2005.08.072
Ulrych, S. (2006). "Gravitoelectromagnetism in a complex Clifford algebra." Physics Letters B 633, no. 4-5: 631-635. doi:10.1016/j.physletb.2005.12.050
da Rocha, Roldao, and Jayme Vaz Jr (2006). "Extended Grassmann and Clifford algebras." arxiv:math-ph/0603050
Boccaletti, Dino, Francesco Catoni, and Vincenzo Catoni (2007). "Space-time trigonometry and formalization of the “Twin Paradox” for uniform and accelerated motions." Advances in applied Clifford algebras 17: 1-22.
Ulrych, S. (2008). "Representations of Clifford algebras with hyperbolic numbers." Advances in Applied Clifford Algebras 18, no. 1: 93-114. arxiv:0707.3981 doi:10.1007/s00006-007-0057-4
Yüce, S., & Kuruoğlu, N. (2008). One-Parameter Plane Hyperbolic Motions. Advances in Applied Clifford Algebras, 18(2), 279–285. doi:10.1007/s00006-008-0065-z
Pogorui, A. A., Rodríguez-Dagnino, R. M., & Rodríguez-Said, R. D. (2008). On the set of zeros of bihyperbolic polynomials. Complex Variables and Elliptic Equations, 53(7), 685–690. doi:10.1080/17476930801973014
Demir, Süleyman, Murat Tanışlı, and Nuray Candemir (2010). "Hyperbolic quaternion formulation of electromagnetism." Advances in Applied Clifford Algebras 20: 547-563. doi:10.1007/s00006-010-0209-9
Ersoy, Soley, and Mahmut Akyigit (2011). "One-parameter homothetic motion in the hyperbolic plane and Euler-Savary formula." Advances in Applied Clifford Algebras 21, no. 2: 297-313. doi:10.1007/s00006-010-0255-3
Hitzer, Eckhard (2013). "Non-constant bounded holomorphic functions of hyperbolic numbers-Candidates for hyperbolic activation functions." arxiv:1306.1653.
Sobczyk, Garret (2013). "Complex and hyperbolic numbers." New Foundations in Mathematics: The Geometric Concept of Number: 23-42.
Fernández-Guasti, Manuel, and Felipe Zaldívar (2013). "A hyperbolic non distributive algebra in 1+ 2 dimensions." Advances in Applied Clifford Algebras 23, no. 3: 639-656. doi:10.1007/s00006-013-0386-4
Trzaska, Zdzisław (2014). "Dynamical processes in sequential-bipolar pulse sources supplying nonlinear loads." Przegląd Elektrotechniczny 90, no. 3: 147-152. http://pe.org.pl/articles/2014/3/32.pdf
Trzaska, Z. (2014). "Nonsmooth analysis of the pulse pressured infusion fluid flow." Nonlinear Dynamics 78, no. 1: 525-540. doi:10.1007/s11071-014-1458-2
Balci, Yakup, Tulay Erisir, and Mehmet Ali Gungor (2015). "Hyperbolic spinor Darboux equations of spacelike curves in Minkowski 3-space." Journal of the Chungcheong Mathematical Society 28, no. 4: 525-535. https://koreascience.kr/article/JAKO201510659890753.pdf
Halldorsson, Hoeskuldur P. "Self-similar solutions to the mean curvature flow in the Minkowski plane ℝ1, 1." Journal für die reine und angewandte Mathematik (Crelles Journal) 2015, no. 704 (2015): 209-243. doi:10.1515/crelle-2013-0054
Gargoubi, H., & Kossentini, S. (2016). f-Algebra Structure on Hyperbolic Numbers. Advances in Applied Clifford Algebras, 26(4), 1211–1233. doi:10.1007/s00006-016-0644-3
Erdoğdu, Melek, and Mustafa Özdemir (2016). "Matrices over hyperbolic split quaternions." Filomat 30, no. 4: 913-920. jstor:24898658
Kumar, Romesh, and Kailash Sharma (2017). "Hyperbolic valued measures and Fundamental law of probability." Global Journal of Pure and Applied Mathematics 13, no. 10: 7163-7177. http://www.ripublication.com/gjpam17/gjpamv13n10_15.pdf
Hitzer, Eckhard, and Stephen J. Sangwine (2019). "Construction of Multivector Inverse for Clifford Algebras Over 2 m+ 1 2 m+ 1-Dimensional Vector Spaces from Multivector Inverse for Clifford Algebras Over 2 m-Dimensional Vector Spaces." Advances in Applied Clifford Algebras 29: 1-22. doi:10.1007/s00006-019-0942-7
Blankers, Vance, Tristan Rendfrey, Aaron Shukert, and Patrick D. Shipman (2019). "Julia and Mandelbrot sets for dynamics over the hyperbolic numbers." Fractal and fractional 3, no. 1: 6. https://www.mdpi.com/415016
Alagöz, Yasemin, and Gözde Özyurt. "Real and hyperbolic matrices of split semi quaternions." Advances in Applied Clifford Algebras 29 (2019): 1-20. doi:10.1007/s00006-019-0973-0
Kulyabov, D. S., A. V. Korolkova, and M. N. Gevorkyan (2020). "Hyperbolic numbers as Einstein numbers." In Journal of Physics: Conference Series, vol. 1557, no. 1, p. 012027. IOP Publishing
Saini, Heera, Aditi Sharma, and Romesh Kumar (2020). "Some fundamental theorems of functional analysis with bicomplex and hyperbolic scalars." Advances in Applied Clifford Algebras 30: 1-23.
Vieira, Guilherme, and Marcos Eduardo Valle (2020). "Extreme Learning Machines on Cayley-Dickson Algebra Applied for Color Image Auto-Encoding." In 2020 International Joint Conference on Neural Networks (IJCNN), pp. 1-8. IEEE. https://ieeexplore.ieee.org/abstract/document/9207495/
Soykan, Yuksel, and Melih Göcen (2020). "Properties of hyperbolic generalized Pell numbers." Notes on Number Theory and Discrete Mathematics 26, no. 4: 136-153. https://www.nntdm.net/papers/nntdm-26/NNTDM-26-4-136-153.pdf
Golberg, A., and M. E. Luna‐Elizarrarás (2020). "Hyperbolic conformality in multidimensional hyperbolic spaces." Mathematical Methods in the Applied Sciences. doi:10.1002/mma.7109
Luna–Elizarrarás, Maria Elena, Marco Panza, Michael Shapiro, and Daniele Carlo Struppa (2020). "Geometry and identity theorems for bicomplex functions and functions of a hyperbolic variable." Milan Journal of Mathematics 88, no. 1: 247-261.
Petoukhov, Sergey V. (2020). "Hyperbolic Numbers, Genetics and Musicology." In Advances in Artificial Systems for Medicine and Education III, pp. 195-207. Springer International Publishing. doi:10.1007/978-3-030-39162-1_18
Devald, Davor, and Željka Milin Šipuš (2021). "Weierstrass representation for lightlike surfaces in Lorentz-Minkowski 3-space." Journal of Geometry and Physics 166: 104252. doi:10.1016/j.geomphys.2021.104252
Soykan, Yüksel (2021). "On hyperbolic numbers with generalized Fibonacci numbers components." Communications in Mathematics and Applications 12, no. 4: 987.
Dehdashti, Shahram, Alireza Shahsafi, Bin Zheng, Lian Shen, Zuojia Wang, Rongrong Zhu, Huanyang Chen, and Hongsheng Chen (2021). "Conformal hyperbolic optics." Physical Review Research 3, no. 3: 033281. doi:10.1103/PhysRevResearch.3.033281
Petoukhov, Sergey V. (2021). "Modeling inherited physiological structures based on hyperbolic numbers." BioSystems 199: 104285. doi:10.1016/j.biosystems.2020.104285
Tellez-Sanchez, G. Y., and Juan Bory-Reyes (2021). "Extensions of the shannon entropy and the chaos game algorithm to hyperbolic numbers plane." Fractals 29, no. 01: 2150013. doi:10.1142/S0218348X21500134
Kleine, Vitor G., Ardeshir Hanifi, and Dan S. Henningson (2022). "Stability of two-dimensional potential flows using bicomplex numbers." Proceedings of the Royal Society A 478, no. 2262: 20220165.
Korolkova, Anna V., Migran N. Gevorkyan, and Dmitry S. Kulyabov (2023). "Implementation of hyperbolic complex numbers in Julia language." arXiv:2301.01707

double complex numbers:

Gürses, Nurten, Mücahit Akbiyik, and Salim Yüce (2016). "One-Parameter Homothetic Motions and Euler-Savary Formula in Generalized Complex Number Plane CJ." Advances in Applied Clifford Algebras 26: 115-136. doi:10.1007/s00006-015-0598-x

double numbers:

I. M. Yaglom (1968), Complex numbers in geometry, Academic Press
Rooney, Joe (1978). "On the three types of complex number and planar transformations." Environment and Planning B: Planning and Design 5, no. 1: 89-99. https://journals.sagepub.com/doi/pdf/10.1068/b050089
Fernández Sanjuan, M. A. (1984). "Group contraction and the nine Cayley-Klein geometries." International journal of theoretical physics 23: 1-14. https://link.springer.com/article/10.1007/BF02080668
McCarthy, J. M. (1986). "The generalization of line trajectories in spatial kinematics to trajectories of great circles on a hypersphere". J. Mech., Trans., and Automation. Mar 1986, 108(1): 60-64. doi:10.1115/1.3260785
Hazewinkle, M. (1994) "Double and dual numbers", Encyclopaedia of Mathematics, Soviet/AMS/Kluwer, Dordrect.
Felsberg, Michael, Thomas Bülow, and Gerald Sommer (2001). "Commutative hypercomplex Fourier transforms of multidimensional signals." Geometric computing with Clifford algebras: theoretical foundations and applications in computer vision and robotics: 209-229. 10.1007/978-3-662-04621-0_9
Gadea, P. M., Grifone, J., & Muňoz Masqué, J. (2003). "Manifolds Modelled Over Free Modules Over the Double Numbers". Acta Mathematica Hungarica, 100(3), 187–203. doi:10.1023/a:1025037325005
Harkin, A. A., & Harkin, J. B. (2004). Geometry of Generalized Complex Numbers. Mathematics Magazine, 77(2), 118–129. doi:10.1080/0025570x.2004.11953236 http://www.courses.physics.helsinki.fi/fys/tilaII/files/Generalized_Complex_Numbers.pdf
Alfsmann, Daniel (2006). "On families of 2 N-dimensional hypercomplex algebras suitable for digital signal processing." In 2006 14th European Signal Processing Conference, pp. 1-4. IEEE.
Silagadze, Z. K. (2007). "Relativity without tears." arXiv:0708.0929
Kisil, Vladimir V. (2012). "Erlangen program at large: an overview." Advances in applied analysis: 1-94. https://www.emis.de/journals/SIGMA/2010/076/
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