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Romakina Lyudmila Nikolaevna

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   2024
1. L. N. Romakina, I. V. Ushakov, “Generalized Chaos game in an extended hyperbolic plane”, Theoret. and Math. Phys., 220:2 (2024), 1361–1384  mathnet  crossref  crossref  mathscinet  adsnasa  scopus

   2023
2. L. N. Romakina, I. V. Ushakov, “Chaos game in an extended hyperbolic plane”, Theoret. and Math. Phys., 215:3 (2023), 793–804  mathnet  crossref  crossref  mathscinet  zmath  adsnasa  scopus
3. Lyudmila. N. Romakina, “Coordinates of the midpoint of a segment in an extended hyperbolic space”, International Electronic Journal of Geometry, 16:1 (2023), 272–282  crossref  mathscinet
4. L. N. Romakina, I. V. Ushakov,, “The Chaos game on polygons in a hyperbolic plane of positive curvature”, Informatsionnye tekhnologii v obrazovanii i nauke (ITON-2023): materialy IX Mezhdunarodnoi nauchno-prakticheskoi konferentsii v ramkakh IV Mezhdunarodnogo foruma po matematicheskomu obrazovaniyu (27 marta – 1 aprelya 2023 g., Kazan), eds. A.A. Agafonov, Izd-vo Akademii nauk RT, Kazan, 2023, 156–159 https://kpfu.ru/portal/docs/F_970833811/ITON_2023.pdf
5. L. N. Romakina, I. V. Ushakov,, “The Chaos game with arbitrary jump in an extended hyperbolic plane”, INTEGRABLE SYSTEMS & NONLINEAR DYNAMICS (ISND–2023) 4th International Conference on INTEGRABLE SYSTEMS & NONLINEAR DYNAMICS (Yaroslavl, September 25−29, 2023), Yaroslavl: YarSU, 2023, 123–124 https://lomonosov-msu.ru/file/event/8178/eid8178_attach_aa69e05e67bb6b924ef4401e9cd307ecf88b5997.pdf
6. L. N. Romakina, “Constant rations for inflection points of a cubic curve with a node or an acnode”, Chebyshevskii Sb., 24:3 (2023), 122–138  mathnet  crossref
7. Romakina, L. N., “Podery oritsiklov na rasshirennoi giperbolicheskoi ploskosti”, Algebra, teoriya chisel, diskretnaya geometriya i mnogomasshtabnoe modelirovanie: Sovremennye problemy, prilozheniya i problemy istorii: Materialy XXII Mezhdunarodnoi konferentsii, posvyaschennoi 120-letiyu so dnya rozhdeniya akademika A. N. Kolmogorova i 60-letiyu so dnya otkrytiya shkoly-internata # 18 pri Moskovskom universitete. — Tula: Tul. gos. ped. un-t im. L. N. Tolstogo, https://www.elibrary.ru/download/elibrary_55080603_37282845.pdf (Tula, 26–29 sentyabrya 2023 goda), Tul. gos. ped. un-t im. L. N. Tolstogo, Tula, 2023, 340–342 http://poivs.tsput.ru/conf/international/XXII/files/Conference2023S.pdf?v=3  elib

   2022
8. L. N. Romakina, I. V. Ushakov,, “The Chaos game in the hyperbolic plane of positive curvature”, NONLINEAR DYNAMICS & INTEGRABILITY (NDI-2022) : Abstracts. (Satellite International Conference on NONLINEAR DYNAMICS & INTEGRABILITY and Scientific School “Nonlinear days” (NDI–2022) (Yaroslavl, June 27 — July 1, 2022), Yaroslavl: YarSU, 2022, 86–88 https://lomonosov-msu.ru/file/event/6251/eid6251_attach_6196e3b7acf3be664a5374d942dbfff78b412c06.pdf
9. Romakina, L. N., “O parabolicheskikh R-orbitakh vtorogo poryadka na rasshirennoi giperbolicheskoi ploskosti”, Matematika. Mekhanika, 24, eds. Khromova G. V., Blinkov Yu. A., Prokhorov D. V., Khromov A. P., Korobchenko E. V., Izd-vo Saratovskogo universiteta, Saratov, 2022, 48–53

   2021
10. Romakina, Lyudmila, “Isoptic Curves of Cycles on a Hyperbolic Plane of Positive Curvature”, ICGG 2020 - Proceedings of the 19th International Conference on Geometry and Graphics, eds. Cheng, Liang-Yee, Springer Nature, 2021, 943–946 https://www.springer.com/gp/book/9783030634025#  crossref  elib  scopus
11. Lyudmila Romakina, “Isoptic Curves of Cycles on a Hyperbolic Plane of Positive Curvature”, International Conference on Geometry and Graphics (19th : 2021 : São Paulo) ICGG 2020 book of abstracts: livro digital, ISBN 978-65-89190-00-4, eds. Liang-Yee Cheng, Rubens Augusto Amaro Junior, Epusp, São Paulo, 2021, 193  elib
12. Lyudmila N. Romakina, “Hyperbolic Raisa Orbits of the Second Order in an Extended Hyperbolic Plane”, International Electronic Journal of Geometry, 14:1 (2021), 194–206  crossref  zmath  isi  elib  scopus
13. Romakina, L. N., “O klassifikatsii trekhvershinnikov rasshirennoi giperbolicheskoi ploskosti po tipu polyarnoi osi”, Algebra, teoriya chisel, diskretnaya geometriya i mnogomasshtabnoe modelirovanie: sovremennye problemy, prilozheniya i problemy istorii : Materialy XIX Mezhdunarodnoi konferentsii, posvyaschennoi 200-letiyu so dnya rozhdeniya akademika P.L. Chebysheva, Tula, 18–22 maya 2021 goda. – Tula: Tulskii gosudarstvennyi pedagogicheskii universitet im. L.N. Tolstogo, 2021., ISBN 978-5-6045159-8-3 (Tula, 18–22 maya 2021 g.), Tulskii gos. ped. un-t im. L.N. Tolstogo, 2021, 232–233  elib
14. Romakina, L. N., “Polyariki rasshirennoi giperbolicheskoi ploskosti”, Materialy IV Mezhdunarodnoi nauchnoi konferentsii «Osennie matematicheskie chteniya v Adygee», ISBN 978-5-85108-381-5, izd-vo AGU, Maikop, 2021, 44–46  elib
15. Romakina, L. N., “Sootnosheniya v trekhrebernike tipa eee(I) rasshirennoi giperbolicheskoi ploskosti, obuslovlennye tipom ego polyarnoi osi”, Matematika. Mekhanika, 23, Izd–vo Saratovskogo un–ta, 2021, 52–55 https://elibrary.ru/download/elibrary_48539110_81939523.pdf  elib

   2020
16. Romakina, L. N., “Biparabolicheskie parallelogrammy giperbolicheskoi ploskosti polozhitelnoi krivizny”, Matematika. Mekhanika, 21, Izd–vo Saratovskogo un–ta, 2020, 44–46  elib
17. Romakina, L. N., “Otnosheniya dlya tochek peregiba kubicheskoi krivoi s uzlovoi ili izolirovannoi tochkoi”, Materialy XVII Mezhdunar. konf., posv. stoletiyu so dnya rozhdeniya professorov B.M.Bredikhina, V.I.Nechaeva i S.B.Stechkina: Algebra, teoriya chisel i diskretnaya geometriya: sovremennye problemy, prilozheniya i problemy istorii, Tulskii gos. ped. un-t im. L.N. Tolstogo, 2020, 2020, 427–429  crossref  elib

   2019
18. Lyudmila N. Romakina, “Construction of cubic curves with a node”, Beitr Algebra Geom, 60:4 (2019), 761–781 https://rdcu.be/buOiI  crossref  mathscinet  zmath  isi  elib  scopus
19. L. N. Romakina, “Inversiya otnositelno ellipticheskogo tsikla giperbolicheskoi ploskosti polozhitelnoi krivizny”, Trudy Instituta matematiki. NAN Belarusi, 27:1-2 (2019), 60–78  mathnet  elib
20. L. N. Romakina, “Svetovye petli na sferakh v rasshirennom giperbolicheskom prostranstve”, Dinamika. 2019. Yaroslavl : tezisy dokladov konferentsii. (Yaroslavl, 10–12 oktyabrya 2019 g.), Yaroslavl : YarGU, 2019, 88–91 https://lomonosov-msu.ru/file/event/5741/eid5741_attach_34bca7d13ad90787fd2cde9c393c8b8788cb41c3.pdf  elib

   2018
21. Lyudmila N. Romakina, “Helixes on Clifford Surfaces in a Hyperbolic Space of Positive Curvature”, 6TH INTERNATIONAL EURASIAN CONFERENCE ON MATHEMATICAL SCIENCES AND APPLICATIONS (IECMSA-2017) (Budapest, 15–18 August 2017), AIP Conference Proceedings, 1926, 020037, eds. Murat Tosun, Soley Ersoy and Kazim Ilarslan, American Institute of Physics, USA, 2018, 020037-1–020037-7 aip.scitation.org/doi/10.1063/1.5020486  crossref  mathscinet  isi  elib  scopus
22. L. N. Romakina, “The inverse Gudermannian in the hyperbolic geometry”, Integral Transforms and Special Functions, 29:5 (2018), 384–401 www.tandfonline.com/toc/gitr20/29/5?nav=tocList  crossref  mathscinet  zmath  isi  elib  scopus
23. L. N. Romakina, “To the volumes theory of a hyperbolic space of positive curvature”, Journal for Geometry and Graphics, 22:1 (2018), 067–086 www.heldermann.de/JGG/JGG22/JGG221/jgg22008.htm  mathscinet  elib  scopus
24. L. N. Romakina, “Svoistvo ortoskhemy rasshirennogo giperbolicheskogo prostranstva”, Algebra, teoriya chisel i diskretnaya geometriya: sovremennye problemy i prilozheniya: Materialy XV Mezhdunar. konf., posvyaschennoi stoletiyu so dnya rozhdeniya professora Nikolaya Mikhailovicha Korobova, TGPU im. L. N. Tolstogo, Tula, 2018, 287–289 www.mathnet.ru/ConfLogos/1304/Conference2018_1.pdf  elib
25. Lyudmila Romakina, Leonid Bessonov, and Angelina Chernyshkova, “Modeling of curls of Agnesi in non-Euclidean planes”, AIP Conference Proceedings. American Institute of Physics, 2037 (2018), 020022-1–020022-6 http://aip.scitation.org/toc/apc/2037/1, https://doi.org/10.1063/1.5078477  crossref  isi  elib  scopus
26. L. Romakina, “To a question on the existence of regular mosaics on a hyperbolic plane of positive curvature”, Miskolc Mathematical Notes, 19:2 (2018), 1117–1132 http://mat76.mat.uni-miskolc.hu/mnotes/article/2104  crossref  mathscinet  zmath  adsnasa  isi  elib  scopus
27. L. N. Romakina, “Koordinaty seredin neparabolicheskikh otrezkov giperbolicheskoi ploskosti polozhitelnoi krivizny v kanonicheskom repere pervogo tipa”, Matematika. Mekhanika, 20, 2018, 70–72  elib
28. Lyudmila N. Romakina, Construction of Cubic Curves with a Node (preprint), Preprint opublikovannoi stati, polnaya versiya kotoroi dostupna dlya prosmotra po ssylke https://rdcu.be/buOiI, 2018 , 21 pp. https://www.researchgate.net/publication/325987248_Construction_of_Cubic_Curves_with_a_Node
29. L. N. Romakina, “Ellipticheskie R-orbity vtorogo poryadka na rasshirennoi giperbolicheskoi ploskosti”, Evraziiskoe nauchnoe ob'edinenie, 1:10(44) (2018), 32–34 https://esa-conference.ru/wp-content/uploads/files/pdf/Romakina-Lyudmila-Nikolaevna3.pdf  elib

   2017
30. Lyudmila N. Romakina, “Inequalities of trihedrals on a hyperbolic plane of positive curvature”, Beitr Algebra Geom, 58:4 (2017), 723–734 link.springer.com/article/10.1007/s13366-017-0339-5  crossref  mathscinet  zmath  isi  elib  scopus
31. L. N. Romakina, I. V. Fedorov, Math. Ed., 2017, no. 1(81), 40–47  mathnet  elib
32. L. N. Romakina, “Ob'em monopolyarnogo tetraedra v giperbolicheskom prostranstve polozhitelnoi krivizny”, EVRAZIISKOE NAUChNOE OB'EDINENIE, 1:5(27) (2017), 27–30 esa-conference.ru/wp-content/uploads/2017/06/esa-may-2017-part1.pdf  elib
33. L. N. Romakina, “Poverkhnosti Klifforda v giperbolicheskom prostranstve polozhitelnoi krivizny”, EVRAZIISKOE NAUChNOE OB'EDINENIE, 1:5(27) (2017), 30–33 esa-conference.ru/wp-content/uploads/2017/06/esa-may-2017-part1.pdf  elib
34. Lyudmila N. Romakina, “Regular and Equiangular Polygons of a Hyperbolic Plane of Positive Curvature”, This paper is devoted to the 225-th anniversary of the birth of Nikolai Ivanovich Lobachevsky, International Electronic Journal of Geometry, 10:2 (2017), 20–31 https://dergipark.org.tr/en/download/article-file/680417  crossref  mathscinet  zmath  elib
35. L. N. Romakina, “Ob'em konechnogo ortogonalnogo h-konusa v giperbolicheskom prostranstve polozhitelnoi krivizny”, Proceedings of the International Geometry Center, 10:2 (2017), 56–71  crossref  mathscinet  zmath  elib
36. L. N. Romakina, “Elementy ob'ema v giperbolicheskom prostranstve polozhitelnoi krivizny”, International scientific conference «Algebraic and geometric methods of analysis». Odessa. Book of abstracts (Odessa, 31 May – 5 June, 2017), Odesskaya Natsionalnaya Akademiya pischevykh tekhnologii, Odessa, 2017, 135–136 imath.kiev.ua/~topology/conf/agma2017/  elib
37. Lyudmila Romakina, “Helixes on Clifford Surfaces in a Hyperbolic Space of Positive Curvature”, 6th International Eurasian Conference on Mathematical Sciences and Applications (IECMSA-2017). Book of Abstructs (see Poster www.researchgate.net/publication/318700534_Helixes_on_Clifford_Surfaces_in_a_Hyperbolic_Space_of_Positive_Curvature) (Budapest, 15–18 August), 2017, 335 www.iecmsa.org/upload/dosya/IECMSA2017AbstractProceedingsBook.pdf  crossref  elib
38. L. N. Romakina, “Inversiya otnositelno oritsikla giperbolicheskoi ploskosti polozhitelnoi krivizny”, Trudy Instituta matematiki.NAN Belarusi, 25:2 (2017), 82–92  mathnet  mathscinet  zmath  elib
39. Lyudmila N. Romakina, Review of the book Il’in, V.A.; Poznyak, È. G. Analytic geometry. Textbook for universities. 8th edition., 2017 (Published online) zbmath.org/?q=an:06763203  zmath
40. L. N. Romakina, “Ploschad ellipticheskogo sektora oritsikla giperbolicheskoi ploskosti polozhitelnoi krivizny”, Pevznerovskie chteniya, 1 (2017), 60–65 elibrary.ru/item.asp?id=30708358  elib
41. L. N. Romakina, “Metod vizualizatsii figur “vblizi beskonechnosti””, Matem. metody i informatsionnye tekhnologii upravleniya v nauke, obrazovanii i pravookhranitelnoi sfere: sb. mater. Vseros. nauchno-tekhn. konf. (Moskva – Ryazan, 27–28 aprelya 2017 g.), Akademiya prava i upravleniya Federalnoi sluzhby ispolneniya nakazanii, Ryazan, 2017, 321–323 elibrary.ru/item.asp?id=29728241  elib
42. Lyudmila Romakina, “Loxodromic spirals on elliptic Clifford surfaces in a hyperbolic space of positive curvature”, Abstracts of the VI Congress of the Turkic World Mathematical Society (Astana, 2–5 October), L.N. Gumilyov Eurasian National University, Astana, 2017, 274 www.twms-astana-2017.kz/site_media/media/uploads/site-1/download/Abstracts_TWMS-2017.pdf  elib
43. L. N. Romakina, “Loksodromy na poverkhnostyakh Klifforda v giperbolicheskom prostranstve polozhitelnoi krivizny”, Novye tendentsii v nelineinoi dinamike: tezisy dokladov konferentsii (Yaroslavl, 5–7 oktyabrya 2017 g.), Yaroslavl: YarGU, 2017, 71–72 agora.guru.ru/display.php?conf=NTND-2017&page=thesises&PHPSESSID=8burtclsk5a58i8kquakgafcj7  elib
44. L. N. Romakina, “Inversiya otnositelno absolyuta rasshirennoi giperbolicheskoi ploskosti”, N.I. Lobachevskii i matematicheskoe obrazovanie v Rossii, Materialy Mezhdunarodnogo foruma po matematicheskomu obrazovaniyu, posvyaschennogo 225-letiyu N.I. Lobachevskogo (Kazan, 18–22 oktyabrya 2017 g.), 1, Izd-vo Kazanskogo un-ta, Kazan, 2017, 111–114  elib
45. Romakina L. N., Kharchenko A. A., Kharchenko N. A., “Geometricheskie postroeniya na idealnoi oblasti ploskosti Lobachevskogo”, Materialy Mezhdunarodnogo foruma po matematicheskomu obrazovaniyu, posvyaschennogo 225-letiyu N.I. Lobachevskogo (Kazan, 18–22 oktyabrya 2017 g.), Izd-vo Kazanskogo un-ta, Kazan, 2017, 114–118  elib

   2016
46. Lyudmila Romakina, “Svetlana Ribbons with Intersecting Axes in a Hyperbolic Plane of Positive Curvature”, Journal for Geometry and Graphics, 20:2 (2016), 209–224 www.heldermann.de/JGG/JGG20/JGG202/jgg20016.htm  mathscinet  zmath  elib
47. Lyudmila N. Romakina, “Inversion with respect to a hypercycle of a hyperbolic plane of positive curvature”, Journal of Geometry, 107:1 (2016), 137–149  crossref  mathscinet  zmath  isi  elib  scopus
48. L.N. Romakina, “K teorii ploschadei giperbolicheskoi ploskosti polozhitelnoi krivizny”, PUBLICATIONS DE L'INSTITUT MATHEMATIQUE Nouvelle serie, 99:113 (2016), 139–154 elib.mi.sanu.ac.rs/files/journals/publ/119/publn119p139-154.pdf  crossref  mathscinet  zmath  elib  scopus
49. Lyudmila N. Romakina, “Dihedrons of a Hyperbolic Three-Space of Positive Curvature”, International Electronic Journal of Geometry, 9:2 (2016), 50–58  crossref  mathscinet  zmath  elib
50. Lyudmila Romakina, “The Area of a Generalized Polygon without Parabolic Edges of a Hyperbolic Plane of Positive Curvature”, Asian Journal of Mathematics and Computer Research, 10:4 (2016), 293–310 www.ikpress.org/abstract/5199  elib
51. L.N. Romakina, “Ellipticheskie ortrisy rasshirennoi giperbolicheskoi ploskosti”, Matematika: Fundamentalnye i prikladnye issledovaniya i voprosy obrazovaniya, materialy mezhdunarodnoi nauchno-prakticheskoi konferentsii (Ryazan, 26-28 aprelya 2016 g.), Ryazanskii gosudarstvennyi universitet imeni S.A. Esenina, Ryazan, 2016, 27–31  elib
52. L. N. Romakina, “Diskussiya o giperbolicheskoi geometrii. Otvet professoru V.V. Mironovu”, EVRAZIISKOE NAUChNOE OB'EDINENIE, 2016, no. 2(14), 7–10  mathscinet  elib
53. L. N. Romakina, “Ploschadi vpisannykh v gipertsikl pravilnykh mnogougolnikov giperbolicheskoi ploskosti polozhitelnoi krivizny”, Innovatsionnaya nauka, 2016, no. 6(3), 20–23  elib
54. L. N. Romakina, “Izmerenie dvugrannykh uglov giperbolicheskogo prostranstva polozhitelnoi krivizny”, INNOVATsIONNYE TEKhNOLOGII NAUChNOGO RAZVITIYa, sbornik statei Mezhdunarodnoi nauchno-prakticheskoi konferentsii. 2016 (Tyumen, 15 iyunya 2016 g.), Obschestvo s ogranichennoi otvetstvennostyu “Aeterna”, Ufa, 2016, 28–30  elib
55. L. N. Romakina, “O vybore evklidovoi modeli dlya opisaniya geometrii okruzhayuschego prostranstva”, Materialy mezhdunarodnoi konferentsii po algebre, analizu i geometrii, posvyaschennoi yubileyam vydayuschikhsya professorov Kazanskogo universiteta, matematikov Petra Alekseevicha (1895-1944) i Aleksandra Petrovicha (1926-1998) Shirokovykh (Kazan, 26 iyunya – 2 iyulya 2016 g.), Kazanskii universitet; izd-vo Akademii nauk RT, Kazan, 2016, 86 kpfu.ru/main_page?p_sub=58462&p_member=25528&p_conf_lang=
56. L. N. Romakina, “O ploschadi ellipticheskogo oritsiklicheskogo n-rebernika giperbolicheskoi ploskosti polozhitelnoi krivizny”, Matematika. Mekhanika, 2016, no. 18, 43–45  elib
57. L. N. Romakina, “Zamechanie ob odnom mnozhestve tochek ploskosti Lobachevskogo”, Innovatsionnaya nauka, 6–3 (2016), 23–25 https://www.elibrary.ru/item.asp?id=26241132  elib

   2015
58. L. N. Romakina, “Partitions of a hyperbolic plane of positive curvature by correct horocyclic $n$-trapezes”, Chebyshevskii Sb., 16:3 (2015), 376–416  mathnet  elib
59. L. N. Romakina, “Classification of tetrahedrons with not hyperbolic sides in a hyperbolic space of positive curvature”, Chebyshevskii Sb., 16:2 (2015), 208–221  mathnet  elib
60. L.N. Romakina, “Analogi formuly Gerona dlya trekhrebernikov tipov eee(I), eee(III) giperbolicheskoi ploskosti polozhitelnoi krivizny”, Matematika. Mekhanika, 2015, no. 17, 52–55  crossref  elib
61. L.N. Romakina, V.O. Churilova, “Ellipticheskie oritsiklicheskie $n$-reberniki ploskosti $\widehat{H}$”, Matematika. Mekhanika, 2015, no. 17, 56–59  crossref  elib
62. Lyudmila Romakina, “About a Trapeze of the Type Hee(I) on a Hyperbolic Plane of Positive Curvature”, Asian Journal of Mathematics and Computer Research, 2:4 (2015), 1–11 www.ikpress.org/abstract/3683
63. Lyudmila Romakina, “An Eye as the Tool of a Choice of the Euclidean Metric for the Description of Real Physical Space”, Journal of Basic and Applied Research International, 9:3 (2015), 147–154 www.ikpress.org/abstract/4148  elib
64. L. N. Romakina, “Razvitie predstavlenii o geometrii okruzhayuschego prostranstva”, EVRAZIISKOE NAUChNOE OB'EDINENIE, 1:10(10), Effektivnye issledovaniya sovremennosti (2015), 18–21  elib
65. L. N. Romakina, “Trapetsii kopsevdoevklidovoi ploskosti”, Vspominaya uchitelya, sbornik nauchnykh trudov, posvyaschënnyi 85-letiyu Galiny Vasilevny Kiotinoi, eds. L. N. Romakina, Izdatelstvo Saratovskogo universiteta, 2015, 79–84  elib
66. L. N. Romakina, “Klassifikatsiya tetraedrov trekhmernogo giperbolicheskogo prostranstva polozhitelnoi krivizny”, ALGEBRA, TEORIYa ChISEL I DISKRETNAYa GEOMETRIYa: SOVREMENNYE PROBLEMY I PRILOZhENIYa, Materialy XIII Mezhdunarodnoi konferentsii, posvyaschennoi vosmidesyatipyatiletiyu so dnya rozhdeniya professora Sergeya Sergeevicha Ryshkova (Tula, 25–30 maya 2015 g.), Tulskii gosudarstvennyi pedagogichekii universitet im. L.N. Tolstogo, Tula, 2015, 319–322  elib

   2014
67. L. N. Romakina, “Carpets on simple $4$-contours on the hyperbolic plane of positive curvature”, Discrete Math. Appl., 24:2 (2014), 109–121  mathnet  crossref  crossref  mathscinet  zmath  zmath  elib  scopus
68. L. N. Romakina, “Parabolic parallelograms of the plane $\widehat H$”, Izv. Saratov Univ. (N.S.), Ser. Math. Mech. Inform., 14:1 (2014), 20–28  mathnet  crossref  zmath  elib

   2015
69. L. N. Romakina, “On the area of a trihedral on a hyperbolic plane of positive curvature”, Siberian Adv. Math., 25:2 (2015), 138–153  mathnet  crossref  mathscinet  zmath  elib  elib  scopus

   2014
70. L.N. Romakina, “Dlina dugi oritsikla giperbolicheskoi ploskosti polozhitelnoi krivizny”, Matematika. Mekhanika, 2014, 58–61  elib

   2013
71. L. N. Romakina, “The theorem of the area of a rectangular trihedral of the hyperbolic plane of positive curvature”, Dal'nevost. Mat. Zh., 13:1 (2013), 127–147  mathnet  mathscinet  zmath  elib
72. L. N. Romakina, “Hyperbolic parallelograms of the plane $\widehat H$”, Izv. Saratov Univ. (N.S.), Ser. Math. Mech. Inform., 13:3 (2013), 43–52  mathnet  crossref  zmath  elib

   2014
73. L. N. Romakina, “Fan triangulations of a hyperbolic plane of positive curvature”, Siberian Adv. Math., 24:3 (2014), 204–221  mathnet  crossref  mathscinet  zmath  elib  elib  scopus

   2013
74. L. N. Romakina, “Analogs of a formula of Lobachevsky for angle of parallelism on the hyperbolic plane of positive curvature”, Sib. Èlektron. Mat. Izv., 10 (2013), 393–407  mathnet  zmath  elib
75. L. N. Romakina, “The chord length of a hypercycle in a hyperbolic plane of positive curvature”, Siberian Math. J., 54:5 (2013), 894–904  mathnet  crossref  mathscinet  zmath  isi  elib  elib  scopus

   2016
76. L. N. Romakina, “Cycles of the hyperbolic plane of positive curvature”, J. Math. Sci. (N. Y.), 212:5 (2016), 605–621  mathnet  mathnet  crossref  mathscinet  zmath  elib  elib  scopus

   2013
77. Romakina L.N., Geometriya giperbolicheskoi ploskosti polozhitelnoi krivizny : v 4-kh ch. Ch. 1: Trigonometriya, eds. Buchko I.Yu., Izdatelstvo Saratovskogo universiteta, Saratov, 2013 , 244 pp.  elib
78. Romakina L.N., Geometriya giperbolicheskoi ploskosti polozhitelnoi krivizny : v 4-kh ch. Ch. 2: Preobrazovaniya i prostye razbieniya, eds. V avtorskoi redaktsii, Izdatelstvo Saratovskogo universiteta, Saratov, 2013  elib
79. L. N. Romakina, “O ploschadi ellipticheskogo chetyrekhugolnika Sakkeri na giperbolicheskoi ploskosti polozhitelnoi krivizny”, Matematika. Mekhanika, 2013, no. 15, 66–69  elib
80. L. N. Romakina, M. A. Bondareva, “Ob odnom metricheskom svoistve ovalnykh linii giperbolicheskikh ploskostei”, Matematika. Mekhanika, 15, Izd-vo Sarat. un-ta, Saratov, 2013, 70–73 https://www.elibrary.ru/item.asp?id=23617358  elib

   2012
81. L. N. Romakina, “Oval lines of the hyperbolic plane of positive curvature”, Izv. Saratov Univ. (N.S.), Ser. Math. Mech. Inform., 12:3 (2012), 37–44  mathnet  crossref  zmath  elib
82. L. N. Romakina, “Simple partitions of a hyperbolic plane of positive curvature”, Sb. Math., 203:9 (2012), 1310–1341  mathnet  crossref  crossref  mathscinet  zmath  isi  elib  elib  scopus
83. L.N. Romakina, “Giperbolicheskie ortrisy giperbolicheskoi ploskosti polozhitelnoi krivizny”, Matematika. Mekhanika, 2012, 62–66  elib

   2011
84. L. N. Romakina, “Finite closed 5-loops of extended hyperbolic plane”, Izv. Saratov Univ. (N.S.), Ser. Math. Mech. Inform., 11:1 (2011), 38–49  mathnet  crossref  elib

   2010
85. L. N. Romakina, “Finite closed 3(4)-loops of extended hyperbolic plane”, Izv. Saratov Univ. (N.S.), Ser. Math. Mech. Inform., 10:3 (2010), 14–26  mathnet  crossref  elib
86. L.N. Romakina, “Razbieniya giperbolicheskoi ploskosti polozhitelnoi krivizny, porozhdennye pravilnym n-konturom”, TEORIYa OTNOSITELNOSTI, GRAVITATsIYa I GEOMETRIYa, Trudy mezhdunarodnoi konferentsii “Petrov 2010 anniversary symposium on general relativity and gravitation”. (Kazan, 1–6 noyabrya 2010 g.), eds. Sostaviteli: A. V. Aminova, S. V. Sushkov., Kazanskii (Privolzhskii) federalnyi universitet, Kazan, 2010, 227–232  elib
87. L. N. Romakina, “Analog mozaiki na giperbolicheskoi ploskosti polozhitelnoi krivizny”, Matematika. Mekhanika, 2010, no. 12, 69–72  elib

   2008
88. Romakina L.N., Geometrii koevklidovoi i kopsevdoevklidovoi ploskostei, OOO Izd-vo “Nauchnaya kniga”, Saratov, 2008 , 279 pp.  elib
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