2017 - present - Head of Department of Complex Analysis and Potential Theory, Institute of Mathematics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
2022 - 2024 - Research Fellow, Department of Mathematics "Tullio Levi-Civita", University of Padova,
Padova, Italy
2006 - 2017 - Leading Research Fellow , Institute of Mathematics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
2007 - 2012 - Professor of Department of Mathematical Analysis, Zhytomyr Ivan Franko State University, Zhytomyr, Ukraine
1999 - 2006 - Senior Research Fellow, Institute of Mathematics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
1992 - 1999 - Research Fellow, Institute of Mathematics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
1989 - 1992 - Junior Research Fellow, Institute of Mathematics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
1984 - 1989 - Postgraduate student, Institute of Mathematics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
2012 - The Attestation Board of Ministry of Education and Science
of Ukraine has given the title of Professor in Mathematical Analysis.
2006 - Doctor of Sciences (in Physics and Mathematics, Mathematical Analysis).
Dissertation Title: Monogenic functions in boundary problems for elliptic type equations with a degeneration on an axis
, Institute of Mathematics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
1989 - Ph.D. (in Physics and Mathematics, Mathematical Analysis).
Theses: Riemann boundary problem and singular integral equations, Institute of Mathematics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
1984 - 1989 - Post-graduate studies under the guidance of Professor P.M. Tamrazov,
Institute of Mathematics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
1979 - 1984 - Master of science, diploma with honors, Faculty of Physics and Mathematics,
Zhytomyr Ivan Franko State Pedagogical Institute, Zhytomyr, Ukraine
1. Problem posed by M.A. Lavrentiev: to develop methods for
investigation of spatial potential solenoid fields analogous to
analytic function methods in the complex plane for plane potential
fields. We constructed analytic functions of vector variable with values
in an infinite-dimensional commutative Banach algebra and proved
that components of these functions generate axial-symmetric
potential functions and Stokes flow functions. In such a way new
integral expressions for these functions were obtained and new
method for investigation of spatial axial-symmetric potential
solenoid fields was found. The suggested method is analogous to
analytic function method in the complex plane and is the solution
of the Lavrentiev problem for spatial axial-symmetric potential
fields. Using new integral expressions for axial-symmetric
potential functions and Stokes flow functions, we developed a
functional-analytic method for effective solving boundary problems
for axial-symmetric potential solenoid fields.
2. We developed an algebraic-analytic approach to classic
equations of mathematical physics. An idea of such an approach means a finding of commutative Banach algebras such that monogenic
functions defined on them form an algebra and have components
satisfying to beforehand given equations with partial derivatives.
We obtained constructive descriptions of monogenic functions
taking values in commutative algebras associated with the
two-dimensional biharmonic equation and the three-dimensional
Laplace equation by means of analytic functions of the complex
variable. For the mentioned monogenic functions we established
basic properties analogous to properties of analytic functions of
the complex variable: the Cauchy integral theorem and integral
formula, the Morera theorem, the uniqueness theorem, the Taylor
and Laurent expansions.
3. We developed a hypercomplex methods for
solving the principal biharmonic problem and boundary value
problems of the plane elasticity theory. We proved that the
mentioned problems are associated with Schwarz type boundary value
problems for monogenic functions in a two-dimensional biharmonic algebra. Using a hypercomplex analog of the Cauchy type integral in the
biharmonic algebra, we develop a scheme of its reduction to systems of integral
equations. We established sufficient conditions under which these
systems have the Fredholm property. It was made for the case where
the boundary of domain belongs to a class being wider than the
class of Lyapunov curves that was usually required in the plane
elasticity theory.
4. The classical theorems on stability of the Noetherian
properties of operators in complete spaces are well-known.
However, attempts to eliminate the requirement of completeness of
spaces from theorems on stability of the Noetherian property faced
essential difficulties of topological nature.
To overcome these difficulties
we developed algebraic methods for proving theorems on stability
of Noetherian and semi-Noetherian properties of operators in
incomplete vector spaces. These algebraic methods are indifferent
with respect to topological properties of the given spaces and
operators.
Noether operators in incomplete spaces appear in the theory
of singular integral equations on curves in the complex plane for
extended classes of equation coefficients and curves. We studied
the Noetherian property for singular integral Cauchy operators in
incomplete spaces of quickly oscillating functions on closed
Jordan regular rectifiable curves by the mentioned methods of
algebraic nature.
5. Solvability of boundary problems for analytic functions theory
in domains with boundary not being piece-wise smooth rectifiable
depends on combined properties both of the given functions and the
boundary. Difficulties increase if the index of a boundary problem
is infinite. To overcome these difficulties we developed methods
for constructing asymptotic expansions for the Cauchy-type
integrals on non-regular rectifiable curves (in particular, on
spiral-form curves). Using these asymptotic expansions, we have
solved explicitly some boundary problems for analytic functions
with infinite index in domains with both regular and non-regular
rectifiable boundary. We have also solved explicitly some Riemann
boundary problems with quickly oscillating coefficients on
Jordan rectifiable curves.
2008 - Mel'nichenko I.P. and Plaksa S.A.Commutative algebras and spatial potential fields.
Kyiv, Institute of Mathematics of the National Academy of Sciences of Ukraine (in Russian).
2023 - Plaksa S.A. and Shpakivskyi V.S.Monogenic functions in spaces with commutative multiplication and applications.
Frontiers in Mathematics, Birkhäuser Cham. DOI: 10.1007/978-3-031-32254-9
Edited volumes:
2010 - Zelinskii Yu.B., Limarchenko O.S., Plaksa S.A., Tamrazov P.M., Trokhimchuk Yu.Yu. (eds).Complex Analysis and Free Boundary Flows.
Transactions of the Institute of Mathematics of the National Academy of Sciences of Ukraine, 7, No. 2.
2012 - Zelinskii Yu.B., Gerasymenko V.I., Trokhimchuk Yu.Yu., Bakhtin O.K., Plaksa S.A. (eds).Analysis and Applications.
Transactions of the Institute of Mathematics of the National Academy of Sciences of Ukraine, 9, No. 2.
2013 - Zelinskii Yu.B., Plaksa S.A. (eds).Complex Analysis, Potential Theory and Applications.
Transactions of the Institute of Mathematics of the National Academy of Sciences of Ukraine, 10, No. 4-5.
2014 - Complex Analysis and Potential Theory, in memory of Promarz M. Tamrazov
(Editor: M. Lanza de Cristoforis, Associated editor: S. Plaksa).
Complex Variables and Elliptic Equations,59, No. 1. DOI: 10.1080/17476933.2013.859254
2022 - Plaksa S.A., Denega I.V. (eds).Complex Analysis and Applications.
Transactions of the Institute of Mathematics of the National Academy of Sciences of Ukraine, 19, No. 1.
Chapters in books or edited volumes:
2000 - Plaksa S.Boundary properties of axial-symmetrical potential and Stokes flow function.
In: Joji Kajiwara, Zong Li, Kwang Ho Shon (eds). Finite or Infinite Dimensional Complex Analysis.
Lecture Notes in Pure and Applied Mathematics. Marcel Dekker Inc., 214, 443-455.
2012 - Plaksa S.A.Commutative algebras associated with classic equations of mathematical physics.
In: Rogosin S., Koroleva A. (eds). Advances in Applied Analysis. Trends in Mathematics. Birkhäuser, Basel, 177-223. DOI: 10.1007/978-3-0348-0417-2_5
2014 - Plaksa S. A. and Pukhtaievych R. P. Monogenic functions in a three-dimensional harmonic comutative
algebras, In: T. Aliev, A. Golberg, and S. V. Rogosin (eds). Complex Analysis and Potential Theory with
Applications, Proceedings of the 9th ISAAC Congress, Krakow, Poland, 5-9 August, 2013,
Cambridge Scientific Publishers, Cottenham, UK, 148-155.
2019 - Gryshchuk S.V. and Plaksa S.A. Biharmonic monogenic functions and biharmonic boundary value problems,
In: Lindahl K., Lindström T., Rodino L., Toft J., Wahlberg P. (eds).
Analysis, Probability, Applications, and Computation. Trends in Mathematics. Birkhäuser, Cham, 153-160. DOI: 10.1007/978-3-030-04459-6_14
2019 - Gryshchuk S.V. and Plaksa S.A. Schwartz-type boundary value problems for monogenic functions in a biharmonic algebra,
In: Rogosin S., Çelebi A. (eds). Analysis as a Life. Trends in Mathematics. Birkhäuser, Cham, 193-211. DOI: 10.1007/978-3-030-02650-9_10
2019 - Plaksa S.A. Axial-symmetric potential flows,
In: Flaut C., Hošková-Mayerová Š., Flaut D. (eds). Models and Theories in Social Systems, Studies in Systems, Decision and Control,
179, Springer, Cham, 165-195. DOI: 10.1007/978-3-030-00084-4_9
2021 - Gryshchuk S.V. and Plaksa S.A. A hypercomplex method for solving boundary value problems for biharmonic functions,
In: Hošková-Mayerová Š., Flaut C., Maturo F. (eds). Algorithms as a Basis of Modern Applied Mathematics. Studies in Fuzziness and Soft Computing,
404, Springer, Cham, 231-255. DOI: 10.1007/978-3-030-61334-1_12
2023 - Tkachuk M.V. and Plaksa S.A. Menchov–Trokhimchuk theorem generalized for monogenic functions in a three-dimensional algebra,
In: Kähler, U., Reissig, M., Sabadini, I., Vin-das, J. (eds) Analysis, Applications, and Computations. ISAAC 2021.
Trends in Mathematics. Birkhäuser, Cham, 333-342. DOI: 10.1007/978-3-031-36375-7_25
2025 - Gryshchuk S. and Plaksa S. A piecewise continuous Schwarz-type boundary-value problem in an angle for monogenic functions in a commutative biharmonic algebra,
In: Ebert, M.R., Kähler, U., Sabadini, I., Toft, J. (eds) New Tools in Mathematical Analysis and Applications. ISAAC 2023.
Trends in Mathematics. Birkhäuser, Cham, 121-132. DOI: 10.1007/978-3-031-77050-0_11
Publications in scientific journals:
1989 - Plaksa S.A. Riemann boundary-value problem with an oscillating coefficient and singular integral equations on a rectifiable curve,
Ukr. Math. J., 41(1), 107-112. DOI: 10.1007/BF01060659
1990 - Plaksa S.A. Riemann boundary problem with index plus-infinity on a rectifiable curve,
Ukr. Math. J., 42(9), 1070-1077. DOI: 10.1007/BF01056599
1990 - Plaksa S.A. Riemann boundary-value problem with index minus infinity on a rectifiable curve,
Ukr. Math. J., 42(10), 1199-1204. DOI: 10.1007/BF01057389
1990 - Plaksa S.A. Riemann boundary problem with infinite index of logarithmic order on a spiral-form contour. I,
Ukr. Math. J., 42(11), 1351-1358. DOI: 10.1007/BF01066191
1990 - Plaksa S.A. Riemann boundary problem with infinite index of logarithmic order on a spiral-form contour. II,
Ukr. Math. J., 42(12), 1507-1515. DOI: 10.1007/BF01060822
1993 - Plaksa S.A. On perturbation of semi-Noether operators in incomplete spaces. I,
Ukr. Math. J., 45(2), 290-298. DOI: 10.1007/BF01060986
1993 - Plaksa S.A. On perturbation of semi-Noether operators in incomplete spaces. II,
Ukr. Math. J., 45(3), 424-429. DOI: 10.1007/BF01061015
1993 - Plaksa S.A. On the composition of operators in vector spaces and their Noether property,
Ukr. Math. J., 45(8), 1316-1320. DOI: 10.1007/BF01070982
1993 - Plaksa S.A. On the Noether property of singular integral equations with Cauchy kernels on a rectifiable curve,
Ukr. Math. J., 45(10), 1548-1559. DOI: 10.1007/BF01571089
1995 - Mel'nichenko I.P. and Plaksa S.A. Reduction of the principal biharmonic problem for a quadrant to nonsingular integral equations,
Ukr. Math. J., 47(6), 892–903. DOI: 10.1007/BF01058780
1996 - Mel'nichenko I.P. and Plaksa S.A. Potential fields with axial symmetry and algebras of monogenic functions of a vector variable. I,
Ukr. Math. J., 48(11), 1717-1730. DOI: 10.1007/BF02529493
1996 - Mel'nichenko I.P. and Plaksa S.A. Potential fields with axial symmetry and algebras of monogenic functions of a vector variable. II,
Ukr. Math. J., 48(12), 1916-1926. DOI: 10.1007/BF02375377
1997 - Mel'nichenko I.P. and Plaksa S.A. Potential fields with axial symmetry and algebras of monogenic functions of a vector variable. III,
Ukr. Math. J., 49(2), 253-268. DOI: 10.1007/BF02486440
2000 - Plaksa S.A. Dirichlet problem for axisymmetric potential fields in a disk of the meridian plane. I,
Ukr. Math. J., 52(4), 564–585. DOI: 10.1007/BF02515397
2000 - Plaksa S.A. Dirichlet problem for axisymmetric potential fields in a disk of the meridian plane. II,
Ukr. Math. J., 52(6), 856–867. DOI: 10.1007/BF02591780
2001 - Plaksa S.A. On integral representations of an axisymmetric potential and the Stokes flow function in domains of the meridian plane. I,
Ukr. Math. J., 53(5), 726-743. DOI: 10.1023/A:1012578200291
2001 - Plaksa S.A. On integral representations of an axisymmetric potential and the Stokes flow function in domains of the meridian plane. II,
Ukr. Math. J., 53(6), 938-950. DOI: 10.1023/A:1013351918523
2001 - Plaksa S.A. Dirichlet problem for an axisymmetric potential in a simply connected domain of the meridian plane,
Ukr. Math. J., 53(12), 1976-1997. DOI: 10.1023/A:1015486805984
2002 - Plaksa S.A. On the solution of the exterior Dirichlet problem for an axisymmetric potential,
Ukr. Math. J., 54(12), 1982–1991. DOI: 10.1023/A:1024073231378
2003 - Plaksa S.A. Dirichlet problem for the Stokes flow function in a simply connected domain of the meridian plane,
Ukr. Math. J., 55(2), 241-281. DOI: 10.1023/A:1025464312591
2003 - Plaksa S.A. Singular integral operators in spaces of oscillating functions on a rectifiable curve,
Ukr. Math. J., 55(9), 1457-1471. DOI: 10.1023/B:UKMA.0000018007.04762.eb
2005 - Plaksa S.A. Differentiation of singular integrals with piecewise-continuous density and boundary values of derivatives of a Cauchy-type integral,
Ukr. Math. J., 57(2), 261-270. DOI: 10.1007/s11253-005-0186-7
2006 - Vasil'eva Yu.V. and Plaksa S.A. Piecewise-continuous Riemann boundary value problem on a rectifiable curve,
Ukr. Math. J., 58(5), 616-628. DOI: 10.1007/s11253-006-0095-4
2009 - Grishchuk S.V. and Plaksa S.A. Integral representations of generalized axially symmetric potentials in a simply connected domain,
Ukr. Math. J., 61(2), 195-213. DOI: 10.1007/s11253-009-0209-x
2009 - Grishchuk S.V. and Plaksa S.A. Monogenic functions in a biharmonic algebra,
Ukr. Math. J., 61(12), 1865-1876. DOI: 10.1007/s11253-010-0319-5
2010 - Shpakivskyi V.S. and Plaksa S.A. Integral theorems and a Cauchy formula in a commutative three-dimensional harmonic algebra,
Bulletin de la Societe des Sciences et des Lettres de Lodz, 60(2), 47-54
2011 - Plaksa S.A. and Shpakivskyi V.S. Constructive description of monogenic functions in a harmonic algebra of the third rank,
Ukr. Math. J., 62(8), 1078-1091. DOI: 10.1007/s11253-011-0427-x
2011 - Plaksa S.A., Gryshchuk S.V. and Shpakivskyi V.S. Commutative algebras of monogenic functions associated with classic equations of mathematical physics,
Contemporary Mathematics, 553, Amer. Math. Soc., Providence, 245-258. DOI: 10.1090/conm/553
2011 - Plaksa S.A. and Kudjavina Yu.V. Riemann boundary value problem on an open Jordan rectifiable curve. I,
Ukr. Math. J., 62(11), 1511-1522. DOI: 10.1007/s11253-011-0465-4
2011 - Plaksa S.A. and Kudjavina Yu.V. Riemann boundary value problem on an open Jordan rectifiable curve. II,
Ukr. Math. J., 62(12), 1659-1671. DOI: 10.1007/s11253-011-0480-5
2012 - Plaksa S.A. and Shpakivskyi V.S. Limiting values of Cauchy type integral in a three-dimensional harmonic algebra,
Eurasian Math. J., 3(2), 120-128
2012 - Plaksa S.A. and Shpakivskyi V.S. A description of spatial potential fields by means of monogenic functions in infinite-dimensional spaces with a commutative multiplication,
Bulletin de la Societe des Sciences et des Lettres de Lodz, 62(2), 55-65
2013 - Plaksa S.A. and Pukhtaievych R.P. Constructive description of monogenic functions in a three-dimensional harmonic algebra with one-dimensional radical,
Ukr. Math. J., 65(5), 740-751. DOI: 10.1007/s11253-013-0810-x
2013 - Plaksa S.A. and Shpakivskyi V.S. On the logarithmic residues of monogenic functions in a three-dimensional harmonic algebra with two-dimensional radical,
Ukr. Math. J., 65(7), 1079-1086. DOI: 10.1007/s11253-013-0843-1
2013 - Gryshchuk S.V. and Plaksa S.A. Basic properties of monogenic functions in a biharmonic plane,
Contemporary Mathematics, 591, Amer. Math. Soc., Providence, 127-134. DOI: 10.1090/conm/591
2013 - Gryshchuk S.V. and Plaksa S.A. Schwartz-type integrals in a biharmonic plane,
Intern. J. of Pure and Applied Math., 83(1), 193-211. DOI: 10.12732/ijpam.v83i1.13
2013 - Plaksa S.A. and Shpakivskyi V.S. On limiting values of Cauchy type integral in a harmonic algebra with two-dimensional radical,
Annales Universitatis Mariae Curie-Sklodowska. Sectio A, 67(1), 57-64
2014 - Plaksa S.A. and Shpakivskyi V.S. Cauchy theorem for a surface integral in commutative algebras,
Complex Variables and Elliptic Equations, 59(1), 110-119. DOI: 10.1080/17476933.2013.845178
2014 - Plaksa S.A. and Pukhtaievych R.P. Monogenic functions in a finite-dimensional semi-simple commutative
algebra, An. St. Univ. Ovidius Constanta, 22(1): 221-235. DOI: 10.2478/auom-2014-0018
2014 - Plaksa S.A. and Shpakivskyi V.S. Monogenic functions in a finite-dimensional algebra with unit and radical of maximal dimensionality,
Journal of Algerian Mathematical Society, 1, 1-13.
2015 - Пухтаєвич Р.П. і Плакса С.А. Інтергал типу Коші по прямій в тривимірній гармонічній алгебрі з одновимірним радикалом
Зб. Пр. Інст. Мат. НАН Укр., 12(3), 212-219.
2016 - Gryshchuk S.V. and Plaksa S.A. Monogenic functions in the biharmonic boundary value problem,
Mathematical Methods in the Applied Sciences, 39(11), 2939-2952. DOI: 10.1002/mma.3741
2017 - Plaksa S.A. and Shpakivskyi V.S. An extension of monogenic functions and spatial potentials,
Lobachevskii Journal of Mathematics, 38(2), 330-337. DOI: 10.1134/S1995080217020160
2017 - Gryshchuk S.V. and Plaksa S.A. A Schwartz-type boundary value problem in a biharmonic plane,
Lobachevskii Journal of Mathematics, 38(3), 435-442. DOI: 10.1134/S199508021703012X
2017 - Gryshchuk S.V. and Plaksa S.A. Reduction of a Schwartz-type boundary value problem for biharmonic monogenic functions to Fredholm integral equations,
Open Mathematics, 15(1), 374-381. DOI: 10.1515/math-2017-0025
2017 - Pukhtaievych R. and Plaksa S. On logarithmic residue of monogenic functions in a three-dimensional
commutative algebra with one-dimensional radical,
An. St. Univ. Ovidius Constanta, 25(3), 167-182. DOI: 10.1515/auom-2017-0043
2018 - Plaksa S.A. and Shpakivskyi V.S. Integral theorems for monogenic functions in an infinite-dimensional space with a commutative multiplication,
Bulletin de la Societe des Sciences et des Lettres de Lodz, 68(2), 25-36
2019 - Plaksa S.A. A functionally-analytic method for modelling axial-symmetric flows of ideal fluid,
Demonstratio Mathematica, 52(1), 213-224. DOI: 10.1515/dema-2019-0018
2019 - Pukhtaievych R. and Plaksa S. Some properties of a Cauchy type integral in a three-dimensional
commutative algebra with one-dimensional radical, Monatsh. Math, 189(3), 523-548. DOI: 10.1007/s00605-019-01288-4
2019 - Plaksa S.A. Monogenic functions in commutative algebras associated with classical equations of mathematical physics,
J. Math. Sci., 242(3), 432-456. DOI: 10.1007/s10958-019-04488-3
2020 - Plaksa S.A. Schwarz boundary-value problems for solutions of a generalized Cauchy-Riemann system with a singular line,
J. Math. Sci., 244(1), 36-46. DOI: 10.1007/s10958-019-04602-5
2021 - Gryshchuk S.V. and Plaksa S.A. Schwartz-type boundary-value problems for canonical domains in a biharmonic plane,
J. Math. Sci., 259(1), 37-52. DOI: 10.1007/s10958-021-05599-6
2022 - Tkachuk M.V. and Plaksa S.A. An analog of the Menchov-Trokhimchuk theorem for monogenic functions in a three-dimensional commutative algebra,
Ukr. Math. J., 73(8), 1299-1308. DOI: 10.1007/s11253-022-01991-w
2023 - Gryshchuk, S.V. and Plaksa S.A. Biharmonic problem in an angle and monogenic functions,
Ukr. Math. J., 74(11), 1686-1700. DOI: 10.1007/s11253-023-02164-z
2023 - Plaksa S.A. Monogenic functions and harmonic vectors,
Proceedings of the International Geometry Center, 16(1), 59-76. DOI: 10.15673/tmgc.v16i1.2385
2024 - Plaksa S.A. On continuous extension of the Cauchy-type integral with parameter-dependent density to the boundary of the domain,
Ukr. Math. J., 76(3), 522–527. DOI: 10.1007/s11253-024-02335-6
1996 - 2nd European Congress of Mathematics, (Budapest, Hungary);
1997 - Conference on Differential Equations and their Applications, (Brno, Czech Republic);
1998 - XII International Conference on Analytic Functions, (Lublin, Poland);
1999 - 7-th International Colloquium on Finite or Infinite Dimensional Complex Analysis,
(Fukuoka, Japan);
1999 - Second International ISAAC Congress, (Fukuoka, Japan);
2000 - International Conference dedicated to M.A. Lavrentiev on the occasion of his birthday centenary,
(Kyiv, Ukraine),Plenary lecture
"On the Lavrentiev's problem: description of axial-symmetric potential fields by means of analytic functions";
2001 - International Conference on Complex Analysis and Potential Theory, (Kyiv, Ukraine);
2001 - Ukrainian Congress of Mathematics , (Kyiv, Ukraine);
2002 - International Conference on Factorization, Singular Operators and Related Problems
in Honour of Professor Georgii Litvinchuk , (Funchal, Madeira, 2002);
2002 - International Workshop on Potential Flows and Complex Analysis , (Kyiv, Ukraine);
2003 - International Conference "Complex Analysis and its Applications" , (Lviv, Ukraine);
2003 - International Workshop "Potential Theory and Free Boundary Flows" , (Kyiv, Ukraine);
2003 - International Conference "Analytic Methods of Analysis and Differential Equations" ,
(Minsk, Belarus);
2005 - 5-th International ISAAC Congress, (Catania, Italy);
2005 - International Workshop "Free boundary flows and related problem of analysis" , (Kyiv, Ukraine);
2006 - International Conference on Complex Analysis and Potential Theory , (Gebze, Turkey);
2007 - 6-th International ISAAC Congress, (Ankara, Turkey);
2007 - International Conference "Complex analysis and wave processes in
mechanics" within the framework of Bogolyubov Readings, (Zhytomir, Ukraine);
2008 - 3-rd Schools on Abstract Differential Equations and OrdinaryDifferential Equations,
(Mostaganem, Algeria);
2009 - 4-th International Conference on Complex Analysis and Dynamical Systems,
(Nahariya, Israel);
2009 - International Workshop "Applied Nonlinear Analysis",
(Holon, Israel);
2009 - International Conference "Analytic methods of mechanics and complex analysis" dedicated to
N.A. Kilchevskii and V.A. Zmorovich on the occasion of their birthday centenary , (Kyiv, Ukraine);
2009 - 2nd Ukrainian Congress of Mathematics , (Kyiv, Ukraine);
2010 - 3-rd International Workshop on Contemporary Problems of Mathematics and Mechanics ,
(Minsk, Belarus);
2010 - 6-th International Conference "Finsler Extensions of Relativity Theory" , (Moscow, Russia);
2011 - International Workshop "Mini-courses in Mathematical Analysis-2011" , (Padova, Italy);
2011 - The 9-th International Conference on Clifford Algebras and their Applications , (Weimar, Germany);
2011 - 8-th International ISAAC Congress , (Moscow, Russia);
2012 - International Conference "Analytic Methods of Analysis and Differential
Equations" , (Minsk, Belarus);
2012 - International Conference dedicated to the 120th anniversary of Stefan Banach , (Lviv, Ukraine);
2013 - International Workshop "A new approach in theoretical and applied methods in
algebra and analysis" , (Constanta, Romania);
2013 - 9-th International ISAAC Congress , (Krakow, Poland);
2014 - International Workshop on Operator Theory and its Applications IWOTA-2014 , (Amsterdam, the Netherlands);
2014 - The School "Festival de Matematicas" , (Cuernavaca, Mexico);
2014 - The Annual Seminar "Analisis: Norte-Sur 2014" , (Mexico City, Mexico);
2015 - International Conference "Analytic Methods of Analysis and Differential Equations" , (Minsk, Belarus);
2017 - 11th International ISAAC Congress , (Vaxjo, Sweden);
2018 - International Workshop "Mini-courses in Mathematical Analysis-2018" , (Padova, Italy);
2018 - (Hyper)Complex Analysis in Differential Equations, Geometry and Physical Applications , (Bedlewo, Poland);
2018 - IECMSA-2018: 7th International Eurasian Conference on Mathematical Sciences and Applications,
(Kyiv, Ukraine),Invited Speaker.
2019 - (Hyper)Complex Analysis in Differential Equations, Geometry and Physical Applications , (Bedlewo, Poland);
2021 - International Online Conference Algebraic and Geometric Methods of Analysis dedicate to the memory of Yuriy Trokhymchuk ,
(Odesa, Ukraine);Invited Speaker.
2021 - 13th International ISAAC Congress , (Ghent, Belgium);
