/ UiT Norges arktiske universitet
 

Prof. Valentin Lychagin

Lychagin, Valentin


Professor
Matematikk og statistikk


Telefon: 776 44021
Mobil jobb / Mobil privat: /
Epost : valentin.lychagin@uit.no
Campus: Tromsø
Kontor/besøksadresse : REALF A 219 / Realfagbygget
Funksjon : Professor

Arbeider i CRIStin

  • Lychagin, Valentin; Yumaguzhin, Valeriy. On Cauchy problem for Einstein-Maxwell equations. Doklady Akademii Nauk 2014; Volum 455 (5). ISSN 0869-5652.s 521 - 523.
  • Lychagin, Valentin; Yumaguzhin, V.A.. On the cauchy problem for the Einstein-Maxwell equation. Doklady. Mathematics 2014; Volum 89 (2). ISSN 1064-5624.s 222 - 224.s doi: 10.1134/S1064562414020288.
  • Lychagin, Valentin; Bibikov, Pavel. On differential invariants of actions of semisimple Lie groups. Journal of Geometry and Physics 2014; Volum 85. ISSN 0393-0440.s 99 - 105.
  • Lychagin, Valentin; Yumaguzhin, Valeriy. Cohomological uniqueness of the Cauchy problem solutions for the Einstein–Maxwell equation. Journal of Geometry and Physics 2014; Volum 85. ISSN 0393-0440.s 206 - 209.
  • Lychagin, Valentin; Huru, Hilja Lisa. Quantizations of compact Lie group actions. Journal of Geometry and Physics 2014; Volum 80. ISSN 0393-0440.s 26 - 36.s doi: http://dx.doi.org/10.1016/j.geomphys.2014.01.015.
  • Huru, Hilja Lisa; Lychagin, Valentin. On abelian group actions and Galois quantizations. Journal of Geometry and Physics 2013; Volum 70. ISSN 0393-0440.s 81 - 97.s doi: 10.1016/j.geomphys.2013.03.011.
  • Akhmetzyanov, A.V.; Kushner, A. G.; Lychagin, Valentin. Geometric theory of special modes in the distributed-parameter control systems. Automation and remote control 2013; Volum 74 (11). ISSN 0005-1179.s 1786 - 1801.s doi: 10.1134/S0005117913110027.
  • Lychagin, Valentin; Konovenko, N. G.. On projective classification of algebraic curves. Mathematical Bulletin Shevchenko scientific society 2013; Volum 10. ISSN 1812-6774.s 51 - 64.
  • Kushner, Alexei G.; Lychagin, Valentin. Petrov invariants of Hamiltonian systems with a control parameter. Automation and remote control 2013; Volum 74 (3). ISSN 0005-1179.s 385 - 400.s doi: 10.1134/S0005117913030053.
  • Bibikov, Pavel; Lychagin, Valentin. Classification of Linear Actions of Algebraic Groups on Spaces of Homogeneous Forms. Doklady. Mathematics 2012; Volum 85 (1). ISSN 1064-5624.s 109 - 112.s doi: 10.1134/S1064562412010383.
  • Huru, Hilja Lisa; Lychagin, Valentin. Quantizations of Group Actions. Journal of Generalized Lie Theory and Applications 2012; Volum 6. ISSN 1736-4337.s doi: 10.4303/jglta/G120403.
  • Lychagin, Valentin; Yumaguzhin, Valeriy. On the Cauchy Problem for the Einstein Equation. Doklady. Mathematics 2012; Volum 86 (3). ISSN 1064-5624.s 781 - 783.s doi: 10.1134/S1064562412060166.
  • Lychagin, Valentin; Yumaguzhin, Valeriy. Cohomological uniuqeness of the Cauchy problem for the Einstein equation. Journal of Geometry and Physics 2012; Volum 62 (10). ISSN 0393-0440.s 2099 - 2120.s doi: 10.1016/j.geomphys.2012.06.001.
  • Lychagin, Valentin; Kushner, Alexei. Petrov Invariants for 1-D Control Hamiltonian Systems. Global and Stochastic Analysis: An International Journal 2012; Volum 2 (1). ISSN 2248-9444.s 89 - 100.
  • Lychagin, Valentin; Konovenko, N. G.. Integrable systems and projective quantities. Izvestia PGPU 2011; Volum 26. ISSN 1999-7116.s 105 - 110.
  • Lychagin, Valentin; Konovenko, N. G.. On projective classification of plane curves. Global and Stochastic Analysis: An International Journal 2011; Volum 1 (2). ISSN 2248-9444.s 241 - 264.
  • Lychagin, Valentin; Bibikov, Pavel. GL2(C)-Orbits of Binary Rational Forms. Lobachevskii Journal of Mathematics 2011; Volum 32 (1). ISSN 1818-9962.s 95 - 102.s doi: 10.1134/S1995080211010069.
  • Lychagin, Valentin; Bibikov, Pavel. GL3(C)-orbits of ternary rational forms. Doklady. Mathematics 2011; Volum 84 (1). ISSN 1064-5624.s 482 - 484.s doi: 10.1134/S1064562411030264.
  • Lychagin, Valentin; Bibikov, Pavel. Projective classification of binary and ternary forms. Journal of Geometry and Physics 2011; Volum 61 (10). ISSN 0393-0440.s 1914 - 1927.s doi: 10.1016/j.geomphys.2011.05.001.
  • Bibikov, P. V.; Lychagin, Valentin. GL(2)(C)-Orbits of Binary Forms. Doklady. Mathematics 2010; Volum 82 (3). ISSN 1064-5624.s 915 - 916.s doi: 10.1134/S1064562410060207.
  • Lychagin, Valentin; Konovenko, Nadiia. Differential Invariants algebras for Lobachevskii and de Sitter geometry. Natsional'na Akademiya Nauk Ukrainy. Dopovidi: naukovyi zhurnal 2010 (1). ISSN 1025-6415.s 13 - 16.
  • Goldberg, Vladislav; Lychagin, Valentin. Samuelson's webs. Doklady. Mathematics 2010; Volum 81 (1). ISSN 1064-5624.s 43 - 46.s doi: 10.1134/S1064562410010138.
  • Lychagin, Valentin. Feedback Differential Invariants. Acta Applicandae Mathematicae - An International Survey Journal on Applying Mathematics and Mathematical Applications 2010; Volum 109 (1). ISSN 0167-8019.s 211 - 222.s doi: 10.1007/s10440-009-9448-y.
  • Goldberg, Vladislav; Lychagin, Valentin. Geodesic Webs on a Two-Dimensional Manifold and Euler Equations. Acta Applicandae Mathematicae - An International Survey Journal on Applying Mathematics and Mathematical Applications 2010; Volum 109 (1). ISSN 0167-8019.s 5 - 17.s doi: 10.1007/s10440-009-9437-1.
  • Kruglikov, Boris; Lychagin, Valentin. Compatibility, Multi-brackets and Integrability of Systems of PDEs. Acta Applicandae Mathematicae - An International Survey Journal on Applying Mathematics and Mathematical Applications 2010; Volum 109 (1). ISSN 0167-8019.s 151 - 196.s doi: 10.1007/s10440-009-9446-0.
  • Lychagin, Valentin; Konovenko, N. G.. On metric equivalence for functions on Lobachevskii plane. Uch. Zap. Kazan. Gos. Univ., Ser. Fiz.-Mat. Nauki 2009; Volum 151 (4). ISSN 1815-6088.s 54 - 59.
  • Goldberg, Vladislav; Lychagin, Valentin. Geodesic webs of hypersurfaces. Doklady. Mathematics 2009; Volum 79 (2). ISSN 1064-5624.s 284 - 286.s doi: 10.1134/S1064562409020355.
  • Lychagin, Valentin; Yumaguzhin, V. A.. On geometric structures of 2-dimensional gas dynamics equations. Lobachevskii Journal of Mathematics 2009; Volum 30 (4). ISSN 1818-9962.s 327 - 332.
  • Lychagin, Valentin; Yumaguzhin, V. A.. Minkowski metrics on solutions of the Khokhlov-Zabolotskaya equation. Lobachevskii Journal of Mathematics 2009; Volum 30 (4). ISSN 1818-9962.s 333 - 336.
  • Lychagin, Valentin; Goldberg, Vladislav. Hyperplanar Webs and Euler Equations. Proceedings of the Institute of Mathematics of NAS of Ukraine 2009; Volum 6 (2). ISSN 1815-2910.s 276 - 287.
  • Lychagin, Valentin. Feedback Equivalence of 1-dimentional Control Systems of the 1-st Oder. Proceedings of the Institute of Mathematics of NAS of Ukraine 2009; Volum 6 (2). ISSN 1815-2910.s 288 - 302.
  • Lychagin, Valentin; Yumaguzhin, V.A.. Minkowski metrics on solutions of the equation of nonstationary transonic gas flow. Proceedings of the International Geometry Center 2009; Volum 2 (1). ISSN 2072-9812.s 27 - 34.
  • Kruglikov, Boris; Lychagin, Valentin. Differential invariants of the motion group actions. Nova Science Publishers, Inc. 2009 ISBN 978-1-60456-920-9.s 237 - 251.
  • Goldberg, Vladislav; Lychagin, Valentin. On Rank Problems for Planar Webs and Projective Structures. Springer Publishing Company 2009 ISBN 978-3-642-00872-6.s 75 - 106.
  • Huru, Hilja Lisa; Lychagin, Valentin. Quantization and classical non-commutative and non-associative algebras. Journal of Generalized Lie Theory and Applications 2008; Volum 2 (1). ISSN 1736-4337.s 24 - 33.
  • Jakobsen, Per; Lychagin, Valentin. Stochastic relations and the problem of prior in the principle of maximum entropy. Acta Applicandae Mathematicae - An International Survey Journal on Applying Mathematics and Mathematical Applications 2008; Volum 101. ISSN 0167-8019.s 133 - 143.s doi: 10.1007/s10440-008-9196-4.
  • Lychagin, Valentin; Huru, Hilja Lisa. Quantizations and classical non-commutative non-associative algebras. Journal of Generalized Lie Theory and Applications 2008 (1). ISSN 1736-4337.s 35 - 44.
  • Lychagin, Valentin; Konovenko, N. G.. Differential invariants of nonstandard projective structures. Natsional'na Akademiya Nauk Ukrainy. Dopovidi: naukovyi zhurnal 2008 (11). ISSN 1025-6415.s 10 - 13.
  • Lychagin, Valentin. On compatibility of systems of PDEs. Acta Academiae Aboensis Ser B Mathematica et physica 2008 (2). ISSN 0001-5105.s 87 - 95.
  • Lychagin, Valentin; Goldberg, Vladislav. On a class of linearizable planar geodesic webs. Proceedings of the International Geometry Center 2008; Volum 1 (1-2). ISSN 2072-9812.s 5 - 11.
  • Kruglikov, Boris Serafimovich; Lychagin, Valentin. Spencer delta-cohomology, restrictions, characteristics and involutive symbolic PDEs. Acta Applicandae Mathematicae - An International Survey Journal on Applying Mathematics and Mathematical Applications 2007; Volum 95. ISSN 0167-8019.s 31 - 50.s doi: 10.1007/s10440-006-9080-z.
  • Lychagin, Valentin; Lychagina, Olga. Finite dimensional dynamics for evolutionary equations. Nonlinear dynamics 2007; Volum 48. ISSN 0924-090X.s 29 - 48.s doi: 10.1007/s11071-006-9049-5.
  • Kruglikov, Boris Serafimovich; Lychagin, Valentin. Mayer brackets and solvability of PDES - II. Transactions of the American Mathematical Society 2006; Volum 358. ISSN 0002-9947.
  • Lychagin, Valentin; Goldberg, Vladislav. On the Blaschke conjecture for 3-webs. Journal of Geometric Analysis 2006; Volum 16 (1). ISSN 1050-6926.s 69 - 115.
  • Kruglikov, Boris Serafimovich; Lychagin, Valentin. Invariants of pseudogruop actions: Homological methods and Finiteness theorem. International Journal of Geometric Methods in Modern Physics (IJGMMP) 2006; Volum 3. ISSN 0219-8878.
  • Jakobsen, Per; Lychagin, Valentin. Maximum Entropy Wavefunctions. Lobachevskii Journal of Mathematics 2006; Volum 23. ISSN 1818-9962.s 29 - 56.
  • Kruglikov, Boris Serafimovich; Lychagin, Valentin. Multi-brackets of differential operators and compatibility of PDE systems. Comptes rendus. Mathematique 2006; Volum 342. ISSN 1631-073X.
  • Jakobsen, Per; Lychagin, Valentin. Quantizations in a category of relations. Lobachevskii Journal of Mathematics 2005; Volum 17. ISSN 1818-9962.s 61 - 145.
  • Jakobsen, Per; Lychagin, Valentin. Universal Semigroups. Lobachevskii Journal of Mathematics 2005; Volum 18. ISSN 1818-9962.s 107 - 125.
  • Goldberg, VV; Lychagin, Valentin. On linearization of planar three-webs and Blaschke' conjecture. Comptes rendus. Mathematique 2005; Volum 341. ISSN 1631-073X.
  • Jakobsen, Per; Lychagin, Valentin. Relations and quantizations in the category of probabilistic bundles. Acta Applicandae Mathematicae - An International Survey Journal on Applying Mathematics and Mathematical Applications 2004; Volum 82. ISSN 0167-8019.s 269 - 308.
  • Jakobsen, Per; Lychagin, Valentin. Operator valued probability theory. Lobachevskii Journal of Mathematics 2004; Volum 16. ISSN 1818-9962.s 17 - 56.
  • Kruglikov, Boris Serafimovich; Lychagin, Valentin. Transitive and transversal actions of pseudogroups on submanifolds. Russian Mathematics (Izvestiya VUZ. Matematika) 2004; Volum 10. ISSN 1066-369X.
  • Kruglikov, Boris Serafimovich; Lychagin, Valentin. A compatibility criterion for systems of PDEs and generalized Lagrange-Charpit method. (prosjekt) AIP Conference Proceedings 2004; Volum 729. ISSN 0094-243X.s 39 - 53.
  • Huru, Hilja Lisa; Lychagin, Valentin. Quantizations and classical non-commutative and non-associative algebras. Report - Institut Mittag-Leffler 2004; Volum 34. ISSN 1103-467X.
  • Lychagin, Valentin. linearizability of d-webs on 2-dimensional manifolds. Selecta Mathematica, New Series 2004 (4). ISSN 1022-1824.s 431 - 451.
  • Kruglikov, Boris Serafimovich; Lychagin, Valentin. Mayer brackets and solvability of PDEs. I. Differential geometry and its applications (Print) 2002; Volum 17 (2-3). ISSN 0926-2245.s 251 - 272.
  • Kruglikov, Boris Serafimovich; Lychagin, Valentin. On equivalence of differential equations. Acta et Commentationes Universitatis Tartuensis de Mathematica 1999; Volum 3. ISSN 1406-2283.s 7 - 29.
  • Lychagin, Valentin. On quantum mechanic on manifolds.. Acta Applicandae Mathematicae - An International Survey Journal on Applying Mathematics and Mathematical Applications 1999; Volum 56. ISSN 0167-8019.s 231 - 251.
  • Lychagin, Valentin; Prasolov, A.. Products and quantizations in K-theory. Proc. ICTP 1999.s 450 - 489.
  • Jakobsen, Per; Lychagin, Valentin. The theory of G-difference Equations. Acta Applicandae Mathematicae - An International Survey Journal on Applying Mathematics and Mathematical Applications 1999; Volum 57. ISSN 0167-8019.s 165 - 204.
  • Lychagin, Valentin. Calculus and Quantizations over Hopt Algebras.. Acta Applicandae Mathematicae - An International Survey Journal on Applying Mathematics and Mathematical Applications 1998; Volum 51. ISSN 0167-8019.s 303 - 352.
  • Lychagin, Valentin. On Local Solvability and Spencer Conjecture for Differential Operator Complexes.. Comptes rendus. Biologies 1997. ISSN 1631-0691.
  • Lychagin, Valentin. Color calculus and color quantizations. Acta Applicandae Mathematicae - An International Survey Journal on Applying Mathematics and Mathematical Applications 1995; Volum 41. ISSN 0167-8019.s 193 - 226.
  • Lychagin, Valentin. Spencer cohomology and symmetry group. Acta Applicandae Mathematicae - An International Survey Journal on Applying Mathematics and Mathematical Applications 1995; Volum 41. ISSN 0167-8019.s 227 - 245.
  • Lychagin, Valentin. Braided differential operators and quantizations in ABC-categories. Comptes rendus. Biologies 1994; Volum 318. ISSN 1631-0691.s 857 - 862.
  • Lychagin, Valentin. Singularities of Cauchy data, characteristics and integral cobordism. Differential geometry and its applications (Print) 1994; Volum 4. ISSN 0926-2245.s 283 - 300.
  • Lychagin, Valentin. A local classification of Monge-Ampere equations. Annales Scientifiques de l'Ecole Normale Supérieure 1993; Volum 26 (3). ISSN 0012-9593.s 281 - 308.
  • Kruglikov, Boris; Lychagin, Valentin; Straume, Eldar. Differential Equations: Geometry, Symmetries and Integrability. Springer Publishing Company 2009 ISBN 978-3-642-00872-6.s 75 - 106.
  • Krupka, Demeter; Saunders, David; Kruglikov, Boris; Lychagin, Valentin; et al, .... Handbook of global analysis. Elsevier 2008 ISBN 978-0-444-52833-9.
  • Lychagin, Valentin; Kushner, Alexei; Rubtsov, Vladimir. Contact geometry and nonelinear differential equations. Cambridge University Press 2007 ISBN 978-0-521-82476-7.
  • Lychagin, Valentin. The Interplay between differential geometry and differential equations. 1995.
  • Lychagin, Valentin. Lectures on geometry of differential equations-2. 1992.
  • Lychagin, Valentin. Lectures on differential equations-1. 1992.
  • Lychagin, Valentin. Geometry 1: Basic Ideas and concepts of differential geometry. 1991.
  • Lychagin, Valentin. Introduction into geometry of nonlinear differential equations. 1986.
  • Lychagin, Valentin. Geometry of jet-spaces and nonlinear differential geometry. 1986.
  • Lychagin, Valentin. Differential invariants. Summer school on Geometry Differential Equations 2014-09-08 - 2014-09-12 2014.
  • Lychagin, Valentin. Differential Invariants and their applications. Workshop on Global analysis 2014-08-25 - 2014-08-29 2014.
  • Huru, Hilja Lisa; Lychagin, Valentin. On quantizations of finite and compact group actions. Delta-Geometry 2014-05-01 - 2014-05-09 2014.
  • Lychagin, Valentin; Konovenko, Nadiia. Differential invariants in image recognition. XV INTERNATIONAL SCIENTIFIC MYKHAILO KRAVCHUK CONFERENCE 2014-05-15 - 2014-05-17 2014.
  • Lychagin, Valentin; Konovenko, Nadiia. LObachevsky Geometry in Image Recognition. Workshop on Delta-Geometry 2014-05-02 - 2014-05-09 2014.
  • Lychagin, Valentin; Huru, Hilja Lisa. Om quantizations of finte and compact group actions. Amega and ECI workshop 2014-04-11 - 2014-04-13 2014.
  • Lychagin, Valentin. Two faces of sl_2. AmeGA workshop on neurogeometry 2014-04-02 - 2014-04-06 2014.
  • Lychagin, Valentin. Conformal differential invariants in neurogeometry and image recognition. Winter Geometrical School 2014-02-07 - 2014-02-16 2014.
  • Lychagin, Valentin; Huru, Hilja Lisa. Quantization of representations of compact connected Lie groups and applications to Hilbert-Schmidt operators. Sophus Lie seminar 2013-11-08 - 2013-11-08 2013.
  • Lychagin, Valentin. Applications of differential invariants to classical algebraic problems. Workshop on Geometry of PDEs and Integrability 2013-10-14 - 2013-10-18 2013.
  • Lychagin, Valentin; Konovenko, Nadiia. Studies of shape space by projective differential invariants. Differential geometry and application 2013-08-19 - 2013-08-23 2013.
  • Lychagin, Valentin. Differential invariants algebras of Lie pseudo groups actions and their applications. Differential geometry and applications 2013-08-19 - 2013-08-23 2013.
  • Lychagin, Valentin. Differential invariants and their application. Conference on nonlinear mathematical physics 2013-06-04 - 2013-06-14 2013.
  • Huru, Hilja Lisa; Lychagin, Valentin. A Summary of Quantizations of Group Actions. PDEs-2013 - Pseudogroups and Differential Equations 2013-03-13 - 2013-03-16 2013.
  • Lychagin, Valentin; Yumaguzhin, Valeriy. Metrics on solutions of short-wave equation. Modeling and Mechanics 2012-10-22 - 2012-10-27 2012.
  • Lychagin, Valentin. Conformal differential invariants in electromagnetism and neurogeometry. Geometry. Invariants. Control. 2012-12-17 - 2012-12-21 2012.
  • Lychagin, Valentin. Conformal differential invariants in neurogeometry. Workshop on neurogeometry in Telc 2012-11-15 - 2012-11-17 2012.
  • Lychagin, Valentin. On equivalence problems.. Geometria de ecuaciones differenciales 2012-10-01 - 2012-10-05 2012.
  • Lychagin, Valentin. Geometrical constructions and Galois theory. Mathematical summer school 2012-07-15 - 2012-07-25 2012.
  • Lychagin, Valentin. From Monge-Ampere equations to Spencer cohomology. Geometry, Integrability, Quantization 2012-07-09 - 2012-07-12 2012.
  • Lychagin, Valentin; Yumaguzhin, V. A.. The Cauchy problem for the Einstein equation. Cohomological uniqueness of formal solutions. Geometry and Algebra of PDEs 2012-08-27 - 2012-08-31 2012.
  • Lychagin, Valentin; Huru, Hilja Lisa. Non-commutative Galois extensions. Geometry and Algebra of PDEs 2012-08-27 - 2012-08-31 2012.
  • Lychagin, Valentin; Kushner, Alexei. Feedback Classification of Hamiltonian Systems. Geometry and Algebra of PDEs 2012-08-27 - 2012-08-31 2012.
  • Lychagin, Valentin; Bibikov, Pavel. Differential invariants and classification of linear actions on homogeneous forms. Geometry and Algebra of PDEs 2012-08-27 - 2012-08-31 2012.
  • Huru, Hilja Lisa; Lychagin, Valentin. Quantizations of representations of symmetric groups. QTS7 2011-08-08 - 2011-08-12 2011.
  • Lychagin, Valentin; Yumaguzhin, V.A.. On Cauchy problem for the Einstein Equation. Conference Geometry.Control.Economics 2011-08-15 - 2011-08-26 2011.
  • Lychagin, Valentin; Kushner, Alexei. Petrov invariants of Hamiltonian systems. Conference Geometry.Control.Economics 2011-08-15 - 2011-08-26 2011.
  • Lychagin, Valentin; Bibikov, Pavel. Differential invariants of affine group actions. Conference Geometry.Control.Economics 2011-08-15 - 2011-08-26 2011.
  • Huru, Hilja Lisa; Lychagin, Valentin. Quantizers and symmetric groups. Journee Non-commutative Franco-Norvegienne 2011-11-08 - 2011-11-08 2011.
  • Lychagin, Valentin. Cohomology with coefficents in sheaves of PDEs solutions (Spencer cohomology). plenary lecture 2010-02-22 - 2010-02-28 2010.
  • Kruglikov, Boris; Lychagin, Valentin; Alexander, Verbovetsky. Joseph Krasil'shchik-Dedication. Acta Applicandae Mathematicae - An International Survey Journal on Applying Mathematics and Mathematical Applications 2010; Volum 109 (1). ISSN 0167-8019.s 1 - 3.s doi: 10.1007/s10440-009-9453-1.
  • Lychagin, Valentin; Yumaguzhin, V. A.. Geometric structures on PDEs solutions. International Geom. Conference 2009-08-25 - 2009-08-29 2009.
  • Lychagin, Valentin; Kushner, A. G.. Geometry of shock waves. International Geom. Conference 2009-08-25 - 2009-08-29 2009.
  • Lychagin, Valentin; Yumaguzhin, V. A.. Geometric structures on solutions of mathematical physics. International Geom. Conference in Odessa 2009-05-25 - 2009-05-30 2009.
  • Lychagin, Valentin; Goldberg, Vladislav. Projective and affine structures associated with geodesics webs of hypersurfaces. International Geom. Conference in Odessa 2009-05-25 - 2009-05-30 2009.
  • Lychagin, Valentin. On feedback invariance of Hamiltonian systems. 25th Nordic and 1st British-Nordic congress of Mathematicians 2009-06-08 - 2009-06-11 2009.
  • Lychagin, Valentin; Goldberg, Vladislav. Geodesic Planar Webs and Euler Equations.. International Geom. Conference in Odessa 2008-05-19 - 2008-05-24 2008.
  • Lychagin, Valentin. Differential invariants for control systems. International Geom. Conference in Odessa 2008-05-19 - 2008-05-24 2008.
  • Lychagin, Valentin. Various approaches for compatibility of PDEs systems. Åbo Akademi 2007-02-20 - 2007-02-23 2007.
  • Lychagin, Valentin; Kruglikov, Boris Serafimovich. Multi-brackets of differential operators and compatibility. University of Joensuu 2006-04-02 - 2006-04-09 2006.
  • Lychagin, Valentin; Goldberg, Vladislav. Abelian Equations and Rank Problems for Planar Webs. 2006.
  • Lychagin, Valentin; Kruglikov, Boris Serafimovich. Compatibility, multi-brackets and integrability of systems of PDEs. 2006.
  • Lychagin, Valentin; Kruglikov, Boris Serafimovich. Dimension of the solutions space of PDEs. 2006.
  • Lychagin, Valentin. Compatibility of PDEs via multibrackets. University of Madrid 2006-08-31 - 2006-09-02 2006.
  • Lychagin, Valentin. PDEs compatibility via multibrackets. Cockcroft Institute 2006-10-31 - 2006-11-04 2006.
  • Lychagin, Valentin; Goldberg, Vladislav. Planar webs of maximal rank. University of Tromso 2006-05-23 - 2006-05-29 2006.
  • Lychagin, Valentin; Goldberg, Vladislav. Abelian equations and differential invariants of webs. University of Joensuu 2006-04-02 - 2006-04-09 2006.
  • Lychagin, Valentin. Linearizability criterion for 3-webs in the plane and Blaschke's conjecture. Dofferential Geometry and Applications 2005-05-23 - 2005-05-29 2005.
  • Lychagin, Valentin; Kruglikov, Boris Serafimovich. Spencer delta-cohomology, restrictions, characteristics and involutive symbolic PDEs. 2005.
  • Lychagin, Valentin. The Blaschke problem of linearizability of d-webs, for d>3. Differential Geometry and Applications 2004-05-17 - 2004-05-29 2004.
  • Lychagin, Valentin. On the Blaschke conjecture for 3-webs. 2004.
  • Lychagin, Valentin. Geometrical and analytical methods forPDEs solution. International workshop on global analysis 2004-04-15 - 2004-04-17 2004.
  • Lychagin, Valentin. Mayer brackets and PDEs solvability. Differential geometry and Applications 2004-05-17 - 2004-05-29 2004.
  • Lychagin, Valentin. Linearizability criterion for d-web in the plane with applications. Kolmogorov and contemporary mathematics 2003-06-16 - 2003-06-21 2003.
  • Lychagin, Valentin. Linearizability of d-webs, d>=4, on two-dimensional manifolds. 2002.
  • Lychagin, Valentin; Kruglikov, Boris Serafimovich. Mayer brackets and PDEs solvability. 2001.
  • Prasolov, Andrei; Lychagin, Valentin. Products and quantizations in K-theory of braiding-commutative algebras. 1999 ISBN 981-02-3491-0.s 450 - 488.
  • Lychagin, Valentin; Kruglikov, Boris Serafimovich. On equivalence of differential equations. 1999.
  • Prasalov, A.; Lychagin, Valentin. Products and quantigations in K-theory of braiding- commutative algebras.. Ukjent 1999-01-01 - 1999.
  • Prasolov, Andrei; Lychagin, Valentin. Products and quantizations in K-theory of braiding-commutative algrebras. 1998; Volum 98 (31).
  • Jakobsen, Per; Romanovsky, Y.; Lychagin, Valentin. Symmetries and Nonlinear Phenomena 2. Applications to Non-linear Acoustics.. 1998.
  • Lychagin, Valentin; Prasolov, A.. Products and quantizations in K-theory of Braiding commentative algebras.. 1998; Volum 98 (31).
  • Lychagin, Valentin; Prasolov, A.. Products and Quantizations in K-theory.. Trieste Conference 1998-01-01 - 1997.
  • Lychagin, Valentin. Symmetries and Non-Linear Phenomena.. 1997 (0).
  • Lychagin, Valentin. The Theory of Linear G-Difference Equations.. 1997 (0).
  • Lychagin, Valentin; Jakobsen, Per. Symmetry and nonlinear phenomena, I. 1997.
  • Lychagin, Valentin. What do we need to build up quantum mechanics on mechanics?. 1996.
  • Lychagin, Valentin. Color calculus and color quantizations. 1995.
  • Lychagin, Valentin. A realization of spinors in the Minkowski space. 1995.
  • Lychagin, Valentin. Calculus and quantizations over Hopf algebras. 1994.



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