Laboratory "Algebra and Topology"
Research domains
- Algebra (theory of radicals, structural problems in algebraic systems near to rings, modules and algebras);
- Quasigroups and combinatorial analysis (general theory of quasigroups and algebraic operations, combinatorial problems in quasigroups and applications in coding theory and cryptology);
- Mathematical logic (algorithmic problems of functional expressibility as well as its generalizations in non-classical logics);
- Topological algebra;
- Geometry of discrete groups.
References
Monographs and books
- M. Raţiu, Algebre iterative lanţiale de funcţii pseudo-booleene trivalente, Iaşi: Editura Alexandru Myller, 2010, 276 p.
- В. Арнаутов, Н. Малютина, Общая топология. Textbooks and Monographs, Moldova State University, Center for Education and Research in Mathematics and Computer Science (CERIM-1006.06, MRDA/CRDF) Ch.: CEP USM, 2010, 108 p.
- В. Арнаутов, Г. Ермакова, Кардинальные и трансфинитные числа. Серия учебники и монографии, Том 9, Universitatea de Stat din Moldova Centrul de educaţie şi Cercetare în Matematică şi Informatică al USM (CECMI USM) - Ch.: CEP USM, 2010, 76p.
- A. Caşu, I. Goian, P. Sârbu, Sisteme numerice, Centrul Editorial al USM, Chişinău, 2008.
- M. Raţă, Inexistenţa algoritmilor de recunoaştere a expresibilităţii sintactice în calcule logice, Piteşti, România, The Flower power. 2004.
- В. Андрунакиевич, Ю. Рябухин. Радикалы алгебр и структурная теория, Москва, Наука, 1973.
- V. Arnautov, S. Glavatky, A. Mikhalev, Introduction to the theory of topological rings and modules, Marcel Dekker, Inc., New York - Basel - Hong Kong, 1996.
- V. Arnautov, The theory of radicals of topological rings, Mathematica Japonica, 1998, Vol. 47, No.3, p. 439 – 544.
- В. Белоусов, Основы теории квазигрупп и луп, Москва, Наука, 1967.
- В. Белоусов, Алгебраические сети и квазигруппы, Кишинёв, Штиинца, 1971.
- В. Белоусов, Конфигурации в алгебраических сетях, Кишинёв, Штиинца, 1979.
- G.B. Belyavskaya, r-Orthogonal latin squares. Chapter 6 in the collection “Latin squares: New Developments in the Theory and Applications”. Annals of Discrete Mathematics, V.46, 1991, North-Holland-Amsterdam-New-York –Oxford-Tokyo, p.169-202.
- A. Caşu, Introducere în teoria modulelor, Centrul Editorial al USM, Chişinău, 2003.
- A. Кашу, Радикалы и кручения в модулях, Кишинёв, Штиинца, 1983.
- A. Кашу, Функторы и кручения в категориях модулей, Кишинёв, Академия Наук РМ, Институт математики, 1997.
- M. Раца, Итеративные цепные классы псевдобулевых функций, Кишинёв, Штиинца, 1990.
- M. Раца, Выразимость в вычислениях высказываний, Кишинёв, Штиинца, 1991.
- М. Урсул, Компактные кольца и их обобщения, Кишинёв, Штиинца, 1991.
Articles
- V. Arnautov, Estimation of the number of one-point expansion of a topology is given on a finite set. Buletinul A.Ş.R.M. Matematica, 2011, nr. 2(66), p. 17-22, ISSN 1024-7696.
- A. Kashu, On some operations in the lattice of submodules determined by preradicals. Buletinul A.Ş.R.M. Matematica, 2011, nr. 2 (64), p. 5–16.
- G. B. Belyavskaya, V. I. Izbash, A. Moldovyan, V. A. Shcherbacov, Digital signature and secret-sharing schemes. Conf. "Cercetarea şi inovarea оn parteneriat cu mediul de afaceri", Chişinău, XI, 2011.
- G. B. Belyavskaya, T. Popovich, Тотально парастрофно ортогональные квазигруппы и полные графы. Фундаментальная и прикладная математика, Москва, 2010.
- O. Izbaş, O serie infinită de clase modelar pre-complete în logica demonstraţional intuiţionistă. In: The 34th Annual Congress, American Ramanian Academy of Arts and Sciences (ARA), May 18th-23rd, Bucharest, Ramania, 2010, Proceedings. Sci. Ed.: Frunzeti T., Hanganu M. – Presses Internationales Polytechnique, Montréal, Québec, 2010, p. 571-574.
- A. Kashu, Preradicals and characteristic submodules: connections and operations. Algebra and discrete mathematics, 2010, vol. 9, nr. 2, p. 59-75.
- V. A. Shcherbacov, D. I. Pushkashu, On the structure of finite paramedial quasigroups. Comment. Math. Univ. Carolin, 2010, 51(2), p. 357-370.
- V. Shcherbacov, On the structure of left and right F-, SM-, and E-quasigroups. În: Journal of Generalized Lie Theory and Applications, 2009, vol. 3, No. 3, p. 197--259.
- Ю. М. Рябухин, Структурная теория и теория радикалов – фундаментальные исследования. В книге : „ Academicianul Vladimir Andrunachievici”, AŞM, IMI, Chişinău, 2009, p. 149 – 177.
- M. Raţă, Algebre iterative lanţiale de funcţii pseudo-booleene 3-valente. In: Proceedings of the 33rd Annual Congress of the American Romanian Academy of Arts and Sciences (ARA), 2009, Vol. 2, Polytechnic International Press, Montreal, Quebec, p. 321-323
- V. Shcherbacov, On the structure of left and right F-, SM-, and E-quasigroups. În: Journal of Generalized Lie Theory and Applications, 2009, Vol. 3, No. 3, p. 197--259.
- V. I. Arnautov, About group topologies of the primary Abelian groups of finite period, which coincide on a subgroup and on a factor group. In: Buletinul A.Ş.M., Matematica, 2009, No.2 (60), p.12-28.
- A.I., Kashu, On preradicals associated to principal functors of module categories , I . In: Buletinul A.Ş.M., Matematica, 2009, № 2 ( 60 ), p. 62 – 72 .
- G.B. Belyavskaya, Ассоцианты и коммутант квазигруппы. Фундаментальная. и прикладная математика, Москва, 1997, т.3, вып.3, с. 715-737.
- G.B. Belyavskaya, Associators, commutators and linearity of a quasigroup. Discrete mathematics and Applications, 1996, v.5, №6, p.577-586.
- G.B. Belyavskaya, V.I. Izbash, G.L. Mullen , Check character systems using quasigroups:I. Designs, Codes and Cryptography, 37, 2005, pp. 215-227.
- G.B. Belyavskaya, Gary L. Mullen, Strongly orthogonal and uniformly orthogonal many-placed operations. Algebra and Discrete , Mathematics , Ukraine, N1, 2006, p. 1-17.
- Izbash V., Syrbu P. On recursively differentiable binary quasigroups. Proceedings of 11-th Conf. on Applied and Industrial Mathematics. Romania, Oradea, CAIM 2003, v. 1, pp. 149-152.
- Baltag V., Izbaş V. Olimpiade matematice. Ministerul educaţiei Al Republicii Moldova, Consiliul olimpic de matematică, Institutul de matematică şi Informatică al AŞM, Chişinău 2003
- Izbash V., Syrbu P. Recursively differentiable quasigroups and complete recursive codes. Comment. Math. Univ. Carolinae 45, 2 (2004) 257-263.
- Izbash V. On automorphisms of the Cartesian square of a groupoid. Quasigroups and Related Systems 5(1998), 99-106.
- Izbash V., Labo N. Crossed-inverse-property groupoids, Buletinul ASM. Matematica. Number 2(54), 2007, Pages 101-106.
- E. Kuznetsov. A loop transversal in a sharply 2-transitive permutation loop. Bulletin of the Acad. of Sci. of Moldova, Mathematics, #3(49), 2005, p. 101-114.
- E. Kuznetsov. Gyrogroups and left gyrogroups as transversals of a special kind. Algebra and Discrete Math., #3, 2003, p. 54-81.
- E. Kuznetsov. Transversals in groups. 4. Derivation construction. Quasigroups and related systems, 9(2002), p. 67-84.
- E. Kuznetsov. Incidence systems over groups that can be supplemented up to projective planes. Quasigroups and related systems, 5(1998), p. 35-52.
- E. Kuznetsov. About some algebraic systems related with projective planes. Quasigroups and related systems, 2(1995), №1, p. 6-33.
- V. Shcherbacov, V. Izbash. On quasigroups with Moufang identity. Buletinul AS RM. Matematica. No 2, 1998, p. 109-116.
- G. L. Mullen, V.A. Shcherbacov, Properties of codes with one check symbol from a quasigroup point of view, Izvestiya AN RM. Matematica. No 3, 2002, p. 71-86.
- A.D. Keedwell, V.A. Shcherbacov, Construction and properties of (r,s,t)-inverse quasigroups. I, Discrete Math., V. 266, No. 1-3, 2003, p. 275-291.
- V. A. Shcherbacov, On simple n-ary medial quasigroups, Proceedings of Conference "Computational Commutative and Non-Commutative Algebraic Geometry", NATO Science Series: Computer and Systems Sciences, Edited by S. Cojocaru, G. Pfister and V. Ufnarovski, IOS Press, V. 196, 2005, p. 305--324.
- G.L. Mullen, V.A. Shcherbacov, On orthogonality of binary operations and squares, Buletinul AŞ RM. Matematica. No 2(48), 2005, p. 3-42.
- V. A. Shcherbacov, On Bruck-Belousov problem, Buletinul AŞ RM. Matematica. No 3(49), 2005, p. 123-140.
- V.A. Shcherbacov, On the structure of left and right F-, SM- and E-quasigroups, arXiv:0811.1725, 67 pages.
- V. Arnautov, K. Filippov, On disjoint sums in the lattice of linear topologies, Фундаментальная и Прикладная математика, т. 9, No 1, с. 3-18, Москва, 2003.
- V. Arnautov, On overnilpotent radicals of topological rings, Buletinul Academiei de Ştiinţei a Republicii Moldova, Matematica, v. 1(44), 2004, p. 3 -- 14.
- V. Arnautov, Properties of one-sided ideals of topological rings, Buletinul Academiei de Ştiinţe a Republicii Moldova, Matematica, 2006, v. 1(50), p.3-14.
- V. Arnautov, О накрытиях в решетке всех групповых топологий произвольной абелевой группе, Сиб. Мат. Журн., 2006, т.47, № 5, 961-973.
- V.Arnautov, Quotient rings of pseudonormed rings, Buletinul Academiei de Ştiinţe a Republicii Moldova, Matematica, 2006, v. 2(51), p.3-16.
- V. Arnautov, Properties of accessible subrings of topological rings when taking quotien rings, Buletinul Academiei de Ştiinţe a Republicii Moldova, Matematica, 2007, v. 2(54), p.4-18.
- A. Kashu, On equivalence of some subcategories of modules in Morita contexts. Algebra and Discrete Mathematics. N 3, 2003, p. 46 – 53.
- A. Kashu, On natural classes of R-modules, Buletinul Academiei de Ştiinţe a Republicii Moldova, Matematica, 2004, v. 2(45), p.95-101.
- A. Caşu, Natural classes and torsion free classes in categories of modules, Buletinul Academiei de Ştiinţe a Republicii Moldova, Matematica, 2006, v. 3(52), p.45-50.
- A. Caşu, On natural and conatural sets of left ideals of a ring, Buletinul Academiei de Ştiinţe a Republicii Moldova, Matematica, 2007, v. 2(54), p.25-32.
- V. Popa, On endomorphism rings without nonzero nilpotent elements. I, Buletinul Academiei de Ştiinţe a Republicii Moldova, Matematica, 1998, 3(28), 35-48.
- V. Popa, On endomorphism rings without nonzero nilpotent elements. II, Buletinul Academiei de Ştiinţe a Republicii Moldova, Matematica, 1999, 2(30), 91-104.
- V. Popa, On the connected component of a homomorphism group, Mathematica, Editions de l’Academie Roumaine, Cluj-Napoca, 1999, Tome 41(64), nr. 1, 69-83.
- V. Popa, On LCA groups with compact rings of continuous endomorphisms, Buletinul Academiei de Ştiinţe a Republicii Moldova, Matematica, 2000, 1(32), 17-32.
- V. Popa, On topological torsion LCA groups with commutative ring of continuous endomorphisms, Buletinul Academiei de Ştiinţe a Republicii Moldova, Matematica, 2006, v. 3(52), p.29-42.
- V. Popa, On LCA groups in which some closed subgroups have commutative rings of continuous endomorphisms, Buletinul Academiei de Ştiinţe a Republicii Moldova, Matematica, 2007, v. 1(53), p.83-94.
- V. Popa, On torsionfree LCA groups with commutative rings of continuous endomorphisms, Buletinul Academiei de Ştiinţe a Republicii Moldova, Matematica, 2007, v. 2(54), p.81-100.
- B.Afanasov, I.Gutul. Suprafeţe total geodezice cu simetrie bogată şi 3-varietăţi închise cu poliedru fundamental comun. Topology'90, Walter de Gruyter, Berlin-New York, 1991, p.37-53 (în limba engleză).
- O.Delgado, D.Huson, E.Zamorzaeva, Clasificarea descompunerilor 2-izoedrice ale planului. Geometriae Dedicata, vol.42, no.1, 1992, p.43-117 (in limba engleza).
- И. Гуцул, О некоторых четырехмерных гиперболических многообразиях, International Seminar on Discrete Geometry dedicated to the 75 birth day of professor A.M. Zamorzaev, Chişinău, 2002, p. 35-40.
- I. Guţul, Some hyperbolic manifolds, Buletinul de Ştiinţe a Republicii Moldova, Matematica, 2004, №3, p. 63-71.
- M. Ursul, Locally finite and locally projectively nilpotent ideals in topological rings, Matematiceskii Sbornik (N.S.) 125(167) (1984), p. 291-305
- M. Ursul, Compact nilrings, Matematiceskie Zametki, 36(6) (1984), p.839-845
- M. Ursul, On product of hereditarily lineary compact rings, Uspehi Matematiceskih Nauk, 36(3) (1980), p. 230-233
- M. Ursul, I. Florea, F-quasigroups with the property of invertibility (IPF-quasigroups), Voprosy Teorii Kvasigrupp i Lup. Kishinev. RIO AN MSSR, 1970, p. 145-146