- Approximate Gauss-Newton methods for the nonlinear least squares problemVaarmann, OtuThe Third World Congress of Nonlinear Analysts : July 19-26, 2000, Catania, Italy2000 / [1] p
- Convergence in corporate statutory tax rates in the Asian and Pacific economiesChen, Yang; Cuestas, Juan Carlos; Regis, Paulo JoseInternational journal of finance & economics2016 / p. 266-278 : ill http://dx.doi.org/10.1002/ijfe.1546
- Effects of long-range forces in nonlinear dynamics of crystals : creation of defects and self-localized vibrationsHaas, Mati; Hižnjakov, Vladimir; Klopov, Mihhail; Shelkan, A.IOP conference series : materials science and engineering2010 / 1, p. 01245 : ill https://iopscience.iop.org/article/10.1088/1757-899X/15/1/012045
- Extended observer form : simple existence conditionsKaparin, Vadim; Kotta, Ülle; Mullari, TanelInternational journal of control2013 / p. 794-803 : ill https://doi.org/10.1080/00207179.2012.760048 https://www.scopus.com/sourceid/12342 https://www.scopus.com/record/display.uri?eid=2-s2.0-84877943197&origin=resultslist&sort=plf-f&src=s&sot=b&sdt=b&s=DOI%2810.1080%2F00207179.2012.760048%29&sessionSearchId=a6a9a3b6ef7339347899f2ad4e915514&relpos=0 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=INT%20J%20CONTROL&year=2013 https://www.webofscience.com/wos/woscc/full-record/WOS:000318765600004
- Nonlinear effects at the initial stage of tsunami-wave developmentPelinovsky, Efim; Rodin, ArtemIzvestiya, atmospheric and oceanic physics2013 / p. 548-553 : ill https://doi.org/10.1134/S0001433813050083 https://www.scopus.com/sourceid/14083 https://www.scopus.com/record/display.uri?eid=2-s2.0-84885678857&origin=resultslist&sort=plf-f&src=s&sot=b&sdt=b&s=DOI%2810.1134%2FS0001433813050083%29&sessionSearchId=08e7c58f88aea92900d731f06ee215ed https://jcr.clarivate.com/jcr-jp/journal-profile?journal=IZV%20ATMOS%20OCEAN%20PHY%2B&year=2013 https://www.webofscience.com/wos/woscc/full-record/WOS:000325707800009
- Nonlinear equations with operators satisfying. Generalized Lipschitz conditions in scalesJanno, JaanZeitschrift für Analysis und ihre Anwendungen = Journal for analysis and its applications1999 / 2, p. 287-295
- Numerical analysis of nonlinear wave propagation = Mittelineaarse lainelevi numbriline analüüsRatas, Mart2020 https://www.ester.ee/record=b5391019*est https://digikogu.taltech.ee/et/Item/96b84b2f-8dc3-4c25-8c58-a5dde59d14ea
- On convergence of some iterative methods for nonlinear equationsVaarmann, OtuMatemaatika teoreetilisi ja rakenduslikke küsimusi : teesid, 13.-14. oktoober 1995 = Problems of pure and applied mathematics : abstracts1995 / [1] lk
- On mathematical complexity of SriyantraPustõnski, Vladislav-VenjaminIndian journal of history of science2014 / p. 268-277 : ill
- On solutions of a Boussinesq-type equation with displacement-dependent nonlinearities : the case of biomembranesEngelbrecht, Jüri; Tamm, Kert; Peets, TanelPhilosophical magazine2017 / p. 967-987 : ill https://doi.org/10.1080/14786435.2017.1283070 https://www.scopus.com/sourceid/15300154849 https://www.scopus.com/record/display.uri?eid=2-s2.0-85011317572&origin=inward&txGid=f3725cd0ff22e7d70573aed4583cc856 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=PHILOS%20MAG&year=2017 https://www.webofscience.com/wos/woscc/full-record/WOS:000396794400005
- On solving ill-conditioned systems of nonlinear equationsVaarmann, OtuEesti Teaduste Akadeemia Toimetised. Füüsika. Matemaatika1994 / 2, lk. 49-63
- On the application of the discrete spectral analysis of solution types of nonlinear evolution equationsSalupere, AndrusAbstracts of Finno-Ugric Days of Mechanics with Heller Symposium, Rackeve/Budapest, Hungary, 19981998 / p. 2
- The principle of majorant and a generalized Aitken's method IKoppel, Heino1996 https://www.ester.ee/record=b1070447*est
- The principle of majorant and a generalized Aitken's method IIKoppel, Heino1997 https://www.ester.ee/record=b1059881*est
- Rapidly convergent methods for nonlinear Fredholm integral equationsKaldo, Indrek; Vaarmann, OtuMMA 2004 : 9th International Conference "Mathematical Modelling and Analysis" : abstracts2004 / p. 30
- Realisation of linear time-varying systemsKotta, Ülle; Tõnso, MarisInternational journal of control2017 / p. 1951-1956 https://doi.org/10.1080/00207179.2016.1230891 https://www.scopus.com/sourceid/12342 https://www.scopus.com/record/display.uri?eid=2-s2.0-84988411854&origin=inward&txGid=51507be6a15b4d2e56246a009769204a https://jcr.clarivate.com/jcr-jp/journal-profile?journal=INT%20J%20CONTROL&year=2023 https://www.webofscience.com/wos/woscc/full-record/WOS:000404245200013
- Realization of nonlinear input-output equations using polynomial approach : preliminary ideasKotta, Ülle; Tõnso, MarisInfo- ja kommunikatsioonitehnoloogia doktorikooli IKTDK kolmanda aastakonverentsi artiklite kogumik : 25.-26. aprill 2008, Voore külalistemaja2008 / p. 21-24
- Realization of nonlinear time-delay input–output equationsKaldmäe, Arvo; Kotta, Ülle; Tõnso, MarisIEEE Control Systems Letters2018 / p. 369-374 https://doi.org/10.1109/LCSYS.2018.2838456 https://www.scopus.com/sourceid/21100885366 https://www.scopus.com/record/display.uri?eid=2-s2.0-85057643619&origin=inward&txGid=291d07de794a79cd26ff1eacc38f3845
- Relations between modules associated to input-output nonlinear equations with delays and their realizationsBartosiewicz, Zbigniew; Kaldmäe, Arvo; Kotta, Ülle; Wyrwas, Malgorzata62nd IEEE Conference on Decision and Control, CDC 2023, Singapore, 13-15 December 20232023 / p. 644-650 https://doi.org/10.1109/CDC49753.2023.10383927 https://www.scopus.com/sourceid/87424 https://www.scopus.com/record/display.uri?eid=2-s2.0-85184815084&origin=inward&txGid=68d7ed7e0ac6bdf6eed3a053f9dad9f7 https://www.webofscience.com/wos/woscc/full-record/WOS:001166433800086
- Some approximate Gauss–Newton-type methods for nonlinear ill-posed problemsKangro, Inga; Kangro, Raul; Vaarmann, OtuProceedings of the Estonian Academy of Sciences2013 / p. 227-237 https://artiklid.elnet.ee/record=b2651797*est
- Some methods for nonlinear ill-posed equationsVaarmann, OtuThe Fourth International Congress on Industrial and Applied Mathematics : Edinburgh (Scotland), 5-9 July, 1999 : book of abstracts1999 / p. 321
- Some rapidly convergent methods for nonlinear Fredholm integral equationKaldo, Indrek; Vaarmann, OtuMathematical modelling and analysis : the Baltic journal on mathematical applications, numerical analysis and differential equations2005 / 1, p. 63-72
- The strong Popov form of nonlinear input–output equationsBartosiewicz, Zbigniew; Pawluszewicz, Ewa; Wyrwas, Małgorzata; Kotta, Ülle; Tõnso, MarisProceedings of the Estonian Academy of Sciences2018 / p. 193–206 https://doi.org/10.3176/proc.2018.3.01 https://www.scopus.com/sourceid/11500153303 https://www.scopus.com/record/display.uri?eid=2-s2.0-85052690894&origin=inward&txGid=d88c4ecefcc3cd05ce583eb9b8cd5c04 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=P%20EST%20ACAD%20SCI&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000443380000001
- Transformation of nonlinear MIMO discrete-time systems into the extended observer formKaparin, Vadim; Kotta, ÜlleAsian journal of control2019 / p. 2208–2217 : ill https://doi.org/10.1002/asjc.1824 https://www.scopus.com/sourceid/12221 https://www.scopus.com/record/display.uri?eid=2-s2.0-85060859959&origin=inward&txGid=9eabd2a8165d8d95665e1dd9229249ad https://jcr.clarivate.com/jcr-jp/journal-profile?journal=ASIAN%20J%20CONTROL&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000489135400003
- Wave dynamics in the channels of variable cross-sectionPelinovsky, Efim; Didenkulova, Irina; Shurgalina, EkaterinaPhysical oceanography2017 / p. 19-27 : ill http://dx.doi.org/10.22449/1573-160X-2017-3-19-27
- Динамика волн в каналах переменного сеченияPelinovsky, Efim; Didenkulova, Irina; Shurgalina, EkaterinaМорcкой гидрофизический журнал2017 / с. 22-31
- Изучение экстремальных заплесков волн на берег в рамках нелинейных уравнений теории мелкой водыSenitšev, D.; Didenkulova, IrinaXXII Международная научно-техническая конференция "Информационные системы и технологии" ИСТ-2016 : посвященная 80-летию РТФ-ФРК-ФИСТ-ИРИТ2016 / с. 437
- Класс итерационных методов для нормально разрешеимых задачSarv, LaurIII симпозиум "Методы решения нелинейных уравнений и задач оптимизации", [31 января - 3 февраля 1984 года] : доклады и сообщения1984 / с. 92-93 https://www.ester.ee/record=b1300129*est
- Метод решения систем нелинейных уравненийViiroja, AndresПроцессы и аппараты химической технологии. 11987 / с. 12-17
- Об оценке погрешности метода сеток при решении нелинейных эллиптических дифференциальных уравненийJürgenson, Rein, inform.Eesti NSV Teaduste Akadeemia toimetised. Füüsika. Matemaatika = Известия Академии наук Эстонской ССР. Физика. Математика = Proceedings of Academy of Sciences of the Estonian SSR. Physics. Mathematics1970 / lk. 492-495 https://www.ester.ee/record=b1264310*est
- Обобщение некоторых методов А. Островского для решения нелинейных операторных уравненийKoppel, HeinoEesti NSV Teaduste Akadeemia toimetised. Füüsika. Matemaatika = Известия Академии наук Эстонской ССР. Физика. Математика = Proceedings of Academy of Sciences of the Estonian SSR. Physics. Mathematics1970 / lk. 496-499 https://www.ester.ee/record=b1264310*est
- Приложение матричного варианта метода последовательных приближений к решению линейных и нелинейных дифференциальных уравнений и их системTšudinova, ŽannaТруды по строительной механике : сборник статей. 31970 / с. 47-56 : илл https://www.ester.ee/record=b2189980*est https://digikogu.taltech.ee/et/Item/cb50984d-414d-4d6b-bd3f-9e9456870054
- Применение многометодного подхода для решения нелинейных систем уравненийKask, K.; Vaarmann, Otu; Tammeraid, IvarXXXII студенческая научно-техническая конференция вузов Прибалтийских республик, Белорусской ССР и Молдавской ССР, 19-21 апреля 1988 г. : тезисы докладов : [в 3-х частях], ч. 11988 / с. 42 https://www.ester.ee/record=b1571601*est
- Принцип мажорант для одного обобщения метода ЭйткенаKoppel, HeinoМатериалы конференции "Методы алгебры и функционального анализа при исследовании семейств операторов" : 24-26 ноября 19781987 / с. 81-83 https://www.ester.ee/record=b1272270*est
- Результаты исследования сходимости разностных методов для нелинейных дифференциальных уравнений второго порядка на неравномерной сеткеJokk, HeikiEesti NSV Teaduste Akadeemia toimetised. Füüsika. Matemaatika = Известия Академии наук Эстонской ССР. Физика. Математика = Proceedings of Academy of Sciences of the Estonian SSR. Physics. Mathematics1974 / с. 86-88 https://www.ester.ee/record=b1264310*est https://www.etera.ee/zoom/19260/view?page=1&p=separate&tool=info
- Численный эксперимент для нелинейного уравнения при кратных решенияхOverst, A.; Sarv, LaurXXXII студенческая научно-техническая конференция вузов Прибалтийских республик, Белорусской ССР и Молдавской ССР, 19-21 апреля 1988 г. : тезисы докладов : [в 3-х частях], ч. 11988 / с. 46 https://www.ester.ee/record=b1571601*est