Lie's reduction method and differential Galois theory in the complex analytic context

David Blázquez-Sanz; Juan J. Morales-Ruiz

doi:10.3934/dcds.2012.32.353

Previous Article
Mixed initial-boundary value problem for Ott-Sudan-Ostrovskiy equation
DCDS Home
This Issue
Next Article

February 2012, 32(2): 353-379. doi: 10.3934/dcds.2012.32.353

Lie's reduction method and differential Galois theory in the complex analytic context

David Blázquez-Sanz ^1, and Juan J. Morales-Ruiz ^2,

1.	Universidad Sergio Arboleda, Calle 74 no. 14-14, Bogotá, D.C., Colombia
2.	Departamento de Matemática e Informática Aplicadas a la Ingeniería Civil, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, Profesor Aranguren s/n (Ciudad Universitaria) - 28040 Madrid, Spain

Received December 2010 Revised April 2011 Published September 2011

Abstract
Related Papers

This paper is dedicated to the differential Galois theory in the complex analytic context for Lie-Vessiot systems. Those are the natural generalization of linear systems, and the more general class of differential equations adimitting superposition laws, as recently stated in [5]. A Lie-Vessiot system is automatically translated into a equation in a Lie group that we call automorphic system. Reciprocally an automorphic system induces a hierarchy of Lie-Vessiot systems. In this work we study the global analytic aspects of a classical method of reduction of differential equations, due to S. Lie. We propose an differential Galois theory for automorphic systems, and explore the relationship between integrability in terms of Galois theory and the Lie's reduction method. Finally we explore the algebra of Lie symmetries of a general automorphic system.

Keywords: differential equations in the complex domain., Differential Galois theory.

Mathematics Subject Classification: Primary: 34M05; Secondary: 12H05, 14L99, 34A2.

Citation: David Blázquez-Sanz, Juan J. Morales-Ruiz. Lie's reduction method and differential Galois theory in the complex analytic context. Discrete & Continuous Dynamical Systems - A, 2012, 32 (2) : 353-379. doi: 10.3934/dcds.2012.32.353

References:

[1]	C. Athorne and T. Hartl, Solvable structures and hidden symmetries,, J. Phys. A, 27 (1995), 3463. Google Scholar
[2]	C. Athorne, Symmetries of linear ordinary differential equations,, J. Phys. A, 30 (1997), 4639. doi: 10.1088/0305-4470/30/13/015. Google Scholar
[3]	C. Athorne, On the Lie symmetry algebra of general ordinary differential equation,, J. Phys. A, 31 (1998), 6605. doi: 10.1088/0305-4470/31/31/008. Google Scholar
[4]	D. Blázquez-Sanz and J. J. Morales-Ruiz, Differential Galois theory of algebraic Lie-Vessiot systems, in "Differential Algebra, Complex Analysis and Orthogonal Polynomials,'' 1-58,, Contemp. Math., 509 (2010). Google Scholar
[5]	D. Blázquez-Sanz and J. J. Morales-Ruiz, Local and global aspects of Lie superposition theorem,, J. Lie Theory, 20 (2010), 483. Google Scholar
[6]	R. L. Bryant, "An introduction to Lie Groups and Symplectic Geometry,'', Lectures at the R.G.I. in Park City, (1991). Google Scholar
[7]	A. Buium, "Differential Function Fields and Moduli of Algebraic Varieties,'', Lecture Notes in Mathematics, 1226 (1986). Google Scholar
[8]	J. F. Cariñena, J. Grabowski and G. Marmo, "Lie-Scheffers Systems: A Geometric Approach,'', Napoli Series on Physics and Astrophysics, (2000). Google Scholar
[9]	J. F. Cariñena, J. Grabowski and G. Marmo, Superposition rules, Lie theorem, and partial differential equations,, Rep. Math. Phys., 60 (2007), 237. Google Scholar
[10]	J. F. Cariñena, J. Grabowski and A. Ramos, Reduction of time-dependent systems admitting a superposition principle,, Acta Appl. Math., 66 (2001), 67. doi: 10.1023/A:1010743114995. Google Scholar
[11]	J. F. Cariñena, J. de Lucas and M. F. Rañada, Recent applications of the theory of Lie systems in Ermakov systems,, SIGMA Symmetry Integrability Geom. Methods Appl., 4 (2008). Google Scholar
[12]	J. F. Cariñena and A. Ramos, A new geometric approach to Lie systems and physical applications. Symmetry and perturbation theory,, Acta Appl. Math., 70 (2002), 43. doi: 10.1023/A:1013913930134. Google Scholar
[13]	G. Casale, Feuilletages singuliers de codimension un, groupoïde de Galois et intégrales premières,, (French) [Singular foliations of codimension one, 56 (2006), 735. Google Scholar
[14]	G. Casale, The Galois groupoid of Picard-Painlevé VI equation,, Algebraic, analytic and geometric aspects of complex differential equations and their deformations, (2007), 15. Google Scholar
[15]	G. Casale, Le groupoïde de Galois de $P_1$ et son irréductibilité,, Comment. Math. Helv., 83 (2008), 471. doi: 10.4171/CMH/133. Google Scholar
[16]	G. Darboux, "Leçons sur la théorie générale des surfaces. I, II,'', (French) [Lessons on the general theory of surfaces. I, (1914). Google Scholar
[17]	W. Fulton and J. Harris, "Representation Theory. A First Course,'', Graduate Texts in Mathematics, 129 (1991). Google Scholar
[18]	A. Guldberg, Sur les équations différentialles ordinaries qui possèdent un système fondamental d'intègrales,, Compt. Rend. Acad. Sci. Paris, (1893), 964. Google Scholar
[19]	M. Havlíček, S. Pošta and P. Winternitz, Nonlinear superposition formulas based on imprimitive group action,, J. Math. Phys., 40 (1999), 3104. doi: 10.1063/1.532749. Google Scholar
[20]	J. E. Humphreys, "Linear Algebraic Groups,'', Graduate Texts in Mathematics, (1975). Google Scholar
[21]	I. Kaplansky, "An Introduction to Differential Algebra,'', Actualités Sci. Ind., (1251). Google Scholar
[22]	E. R. Kolchin, Galois theory of differential fields,, Amer. J. Math., 75 (1953), 753. doi: 10.2307/2372550. Google Scholar
[23]	E. R. Kolchin, "Differential Algebra and Algebraic Groups,'', Pure and Applied Mathematics, 54 (1973). Google Scholar
[24]	A. G. Khovanskiĭ, Topological obstructions to the representability of functions by quadratures,, J. Dynam. Control Systems, 1 (1995), 91. doi: 10.1007/BF02254657. Google Scholar
[25]	S. Lie, Allgemeine Untersuchungen über Differentialgleichungen, die eine continuierliche endliche Gruppe gestatten,, Math. Ann. Bd., 25 (1885), 71. doi: 10.1007/BF01446421. Google Scholar
[26]	S. Lie, "Über Differentialgleichungen die Fundamentalintegrale besitzen,'', Lepziger Berichte, (1893). Google Scholar
[27]	S. Lie, "Vorlesungen über continuierliche Gruppen mit Geometrischen und anderen Anwendungen,'', (German) Bearbeitet und herausgegeben von Georg Scheffers, (1893). Google Scholar
[28]	S. Lie, Sur les équations différentielles ordinaries, qui possèddent des systemes fondamentaux d'integrales,, Compt. Rend. Acad. Sci. Paris, (1893), 1233. Google Scholar
[29]	S. Lie and G. Scheffers, "Vorlesungen über Differentialgleichungen mit bekannten Infinitesimalen Transformationen,'', Reprinted by Chelsea books, (1967). Google Scholar
[30]	J. Liouville, Mémoire sur l'integration de une classe de équations différentielles du second ordre en quantités finies explicités,, J. Math. Pures Appl., 4 (1839), 423. Google Scholar
[31]	B. Malgrange, Le groupoïde de Galois d'un feuilletage,, (French) [The Galois groupoid of a foliation], 38 (2001), 465. Google Scholar
[32]	B. Malgrange, On nonlinear differential Galois theory,, Chinese Ann. Math. Ser. B, 23 (2002), 219. doi: 10.1142/S0252959902000213. Google Scholar
[33]	B. Malgrange, "Pseudogroupes de Lie et Théorie de Galois Différentielle,'', (French) [Lie Pseudogroups and Differential Galois Theory], (2010). Google Scholar
[34]	P. Malliavin, "Géométrie Différentielle Intrinsèque,'', (French) [Intrinsic Differential Geometry], (1972). Google Scholar
[35]	M. Maamache, Ermakov systems, exact solution, and geometrical angles and phases,, Phys. Rev. A (3), 52 (1995), 936. doi: 10.1103/PhysRevA.52.936. Google Scholar
[36]	J. J. Morales-Ruiz and J.-P. Ramis, Galoisian obstructions to integrability of Hamiltonian systems. I, II,, Methods Appl. Anal., 8 (2001), 33. Google Scholar
[37]	J. J. Morales-Ruiz and J.-P. Ramis, A note on the non-integrability of some Hamiltonian systems with a homogeneous potential,, Methods Appl. Anal., 8 (2001), 113. Google Scholar
[38]	J. J. Morales-Ruiz, "Differential Galois Theory and Non-Integrability of Hamiltonian Systems,'', Progress in Mathematics, 179 (1999). Google Scholar
[39]	J. J. Morales-Ruiz, J.-P. Ramis and C. Simo, Integrability of Hamiltonian systems and differential Galois groups of higher variational equations,, Ann. Sci. cole Norm. Sup. (4), 40 (2007), 845. Google Scholar
[40]	K. Nishioka, Differential algebraic function fields depending rationally on arbitrary constants,, Nagoya Math. J., 113 (1989), 173. Google Scholar
[41]	K. Nishioka, General solutions depending algebraically on arbitrary constants,, Nagoya Math. J., 113 (1989), 1. Google Scholar
[42]	K. Nishioka, Lie extensions,, Proc. Japan Acad. Ser. A Math. Sci., 73 (1997), 82. doi: 10.3792/pjaa.73.82. Google Scholar
[43]	K. Nomizu, "Lie Groups and Differential Geometry,'', The Mathematical Society of Japan, (1956). Google Scholar
[44]	J.-P. Ramis and J. Martinet, Théorie de Galois différentielle et resommation,, (French) [Differential Galois theory and resummation], (1990), 117. Google Scholar
[45]	M. Rosenlicht, A remark on quotient spaces,, An. Acad. Brasil. Ci., 35 (1963), 487. Google Scholar
[46]	C. Sancho de Salas, "Grupos Algebraicos y Teoría de Invariantes,'' (Spanish) [Algebraic Groups and Invariant Theory],, Aportaciones Matemáticas: Textos [Mathematical Contributions: Texts], 16 (2001). Google Scholar
[47]	J.-P. Serre, Géométrie algébrique et géométrie analytique, (French), 6 (): 1955. Google Scholar
[48]	J.-P. Serre, Espaces fibrés algebriques (French),, Séminaire Claude Chevalley, 3 (1958), 1. Google Scholar
[49]	Y. Sibuya, "Linear Differential Equations in the Complex Domain: Problems of Analytic Continuation,'', Translated from the Japanese by the author, 82 (1990). Google Scholar
[50]	S. Shnider and P. Winternitz, Classification of systems of nonlinear ordinary differential equations with superposition principles,, J. Math. Phys., 25 (1984), 3155. doi: 10.1063/1.526085. Google Scholar
[51]	M. Sorine and P. Winternitz, Superposition laws for solutions of differential matrix Riccati equations arising in control theory,, IEEE Trans. Automat. Control, 30 (1985), 266. doi: 10.1109/TAC.1985.1103934. Google Scholar
[52]	H. Umemura, On the irreducibility of the first differential equation of Painlevé,, in, (1988), 771. Google Scholar
[53]	H. Umemura, Galois theory of algebraic and differential equations,, Nagoya Math. J., 144 (1996), 1. Google Scholar
[54]	H. Umemura, Differential Galois theory of infinite dimension,, Nagoya Math. J., 144 (1996), 59. Google Scholar
[55]	H. Umemura, Sur l'équivalence des théories de Galois différentielles générales,, (French) [On the equivalence of general differential Galois theories], 346 (2008), 1155. Google Scholar
[56]	M. van der Put and M. F. Singer, "Galois Theory of Linear Differential Equations,'', Grundlehren der Mathematischen Wissenschaften [Fundamental Principles of Mathematical Sciences], 328 (2003). Google Scholar
[57]	E. Vessiot, Sur l'intégration des equations différentielles linéaires, (French), 9 (1892), 197. Google Scholar
[58]	E. Vessiot, Sur une classe d'équations différentielles,, Ann. Sci. École Norm. Sup. (3), 10 (1893), 53. Google Scholar
[59]	E. Vessiot, Sur une classe systèmes d'équations différentielles ordinaires,, Compt. Rend. Acad. Sci. Paris, (1893), 1112. Google Scholar
[60]	E. Vessiot, Sur les systèmes d'équations différentielles du premier ordre qui ont des systèmes fondamentaux d'intégrales,, Ann. Fac. Sci. Toulouse Sci. Math. Sci. Phys., 8 (1894). Google Scholar
[61]	E. Vessiot, Sur la théorie de Galois et ses diverses généralisations, (French), 21 (1904), 9. Google Scholar
[62]	E. Vessiot, Sur la réductibilité des systèmes automorphes dont le groupe d'automorphie est un groupe continu fini simplement transitif, (French), 57 (1940), 1. Google Scholar

show all references

References:

[1]	C. Athorne and T. Hartl, Solvable structures and hidden symmetries,, J. Phys. A, 27 (1995), 3463. Google Scholar
[2]	C. Athorne, Symmetries of linear ordinary differential equations,, J. Phys. A, 30 (1997), 4639. doi: 10.1088/0305-4470/30/13/015. Google Scholar
[3]	C. Athorne, On the Lie symmetry algebra of general ordinary differential equation,, J. Phys. A, 31 (1998), 6605. doi: 10.1088/0305-4470/31/31/008. Google Scholar
[4]	D. Blázquez-Sanz and J. J. Morales-Ruiz, Differential Galois theory of algebraic Lie-Vessiot systems, in "Differential Algebra, Complex Analysis and Orthogonal Polynomials,'' 1-58,, Contemp. Math., 509 (2010). Google Scholar
[5]	D. Blázquez-Sanz and J. J. Morales-Ruiz, Local and global aspects of Lie superposition theorem,, J. Lie Theory, 20 (2010), 483. Google Scholar
[6]	R. L. Bryant, "An introduction to Lie Groups and Symplectic Geometry,'', Lectures at the R.G.I. in Park City, (1991). Google Scholar
[7]	A. Buium, "Differential Function Fields and Moduli of Algebraic Varieties,'', Lecture Notes in Mathematics, 1226 (1986). Google Scholar
[8]	J. F. Cariñena, J. Grabowski and G. Marmo, "Lie-Scheffers Systems: A Geometric Approach,'', Napoli Series on Physics and Astrophysics, (2000). Google Scholar
[9]	J. F. Cariñena, J. Grabowski and G. Marmo, Superposition rules, Lie theorem, and partial differential equations,, Rep. Math. Phys., 60 (2007), 237. Google Scholar
[10]	J. F. Cariñena, J. Grabowski and A. Ramos, Reduction of time-dependent systems admitting a superposition principle,, Acta Appl. Math., 66 (2001), 67. doi: 10.1023/A:1010743114995. Google Scholar
[11]	J. F. Cariñena, J. de Lucas and M. F. Rañada, Recent applications of the theory of Lie systems in Ermakov systems,, SIGMA Symmetry Integrability Geom. Methods Appl., 4 (2008). Google Scholar
[12]	J. F. Cariñena and A. Ramos, A new geometric approach to Lie systems and physical applications. Symmetry and perturbation theory,, Acta Appl. Math., 70 (2002), 43. doi: 10.1023/A:1013913930134. Google Scholar
[13]	G. Casale, Feuilletages singuliers de codimension un, groupoïde de Galois et intégrales premières,, (French) [Singular foliations of codimension one, 56 (2006), 735. Google Scholar
[14]	G. Casale, The Galois groupoid of Picard-Painlevé VI equation,, Algebraic, analytic and geometric aspects of complex differential equations and their deformations, (2007), 15. Google Scholar
[15]	G. Casale, Le groupoïde de Galois de $P_1$ et son irréductibilité,, Comment. Math. Helv., 83 (2008), 471. doi: 10.4171/CMH/133. Google Scholar
[16]	G. Darboux, "Leçons sur la théorie générale des surfaces. I, II,'', (French) [Lessons on the general theory of surfaces. I, (1914). Google Scholar
[17]	W. Fulton and J. Harris, "Representation Theory. A First Course,'', Graduate Texts in Mathematics, 129 (1991). Google Scholar
[18]	A. Guldberg, Sur les équations différentialles ordinaries qui possèdent un système fondamental d'intègrales,, Compt. Rend. Acad. Sci. Paris, (1893), 964. Google Scholar
[19]	M. Havlíček, S. Pošta and P. Winternitz, Nonlinear superposition formulas based on imprimitive group action,, J. Math. Phys., 40 (1999), 3104. doi: 10.1063/1.532749. Google Scholar
[20]	J. E. Humphreys, "Linear Algebraic Groups,'', Graduate Texts in Mathematics, (1975). Google Scholar
[21]	I. Kaplansky, "An Introduction to Differential Algebra,'', Actualités Sci. Ind., (1251). Google Scholar
[22]	E. R. Kolchin, Galois theory of differential fields,, Amer. J. Math., 75 (1953), 753. doi: 10.2307/2372550. Google Scholar
[23]	E. R. Kolchin, "Differential Algebra and Algebraic Groups,'', Pure and Applied Mathematics, 54 (1973). Google Scholar
[24]	A. G. Khovanskiĭ, Topological obstructions to the representability of functions by quadratures,, J. Dynam. Control Systems, 1 (1995), 91. doi: 10.1007/BF02254657. Google Scholar
[25]	S. Lie, Allgemeine Untersuchungen über Differentialgleichungen, die eine continuierliche endliche Gruppe gestatten,, Math. Ann. Bd., 25 (1885), 71. doi: 10.1007/BF01446421. Google Scholar
[26]	S. Lie, "Über Differentialgleichungen die Fundamentalintegrale besitzen,'', Lepziger Berichte, (1893). Google Scholar
[27]	S. Lie, "Vorlesungen über continuierliche Gruppen mit Geometrischen und anderen Anwendungen,'', (German) Bearbeitet und herausgegeben von Georg Scheffers, (1893). Google Scholar
[28]	S. Lie, Sur les équations différentielles ordinaries, qui possèddent des systemes fondamentaux d'integrales,, Compt. Rend. Acad. Sci. Paris, (1893), 1233. Google Scholar
[29]	S. Lie and G. Scheffers, "Vorlesungen über Differentialgleichungen mit bekannten Infinitesimalen Transformationen,'', Reprinted by Chelsea books, (1967). Google Scholar
[30]	J. Liouville, Mémoire sur l'integration de une classe de équations différentielles du second ordre en quantités finies explicités,, J. Math. Pures Appl., 4 (1839), 423. Google Scholar
[31]	B. Malgrange, Le groupoïde de Galois d'un feuilletage,, (French) [The Galois groupoid of a foliation], 38 (2001), 465. Google Scholar
[32]	B. Malgrange, On nonlinear differential Galois theory,, Chinese Ann. Math. Ser. B, 23 (2002), 219. doi: 10.1142/S0252959902000213. Google Scholar
[33]	B. Malgrange, "Pseudogroupes de Lie et Théorie de Galois Différentielle,'', (French) [Lie Pseudogroups and Differential Galois Theory], (2010). Google Scholar
[34]	P. Malliavin, "Géométrie Différentielle Intrinsèque,'', (French) [Intrinsic Differential Geometry], (1972). Google Scholar
[35]	M. Maamache, Ermakov systems, exact solution, and geometrical angles and phases,, Phys. Rev. A (3), 52 (1995), 936. doi: 10.1103/PhysRevA.52.936. Google Scholar
[36]	J. J. Morales-Ruiz and J.-P. Ramis, Galoisian obstructions to integrability of Hamiltonian systems. I, II,, Methods Appl. Anal., 8 (2001), 33. Google Scholar
[37]	J. J. Morales-Ruiz and J.-P. Ramis, A note on the non-integrability of some Hamiltonian systems with a homogeneous potential,, Methods Appl. Anal., 8 (2001), 113. Google Scholar
[38]	J. J. Morales-Ruiz, "Differential Galois Theory and Non-Integrability of Hamiltonian Systems,'', Progress in Mathematics, 179 (1999). Google Scholar
[39]	J. J. Morales-Ruiz, J.-P. Ramis and C. Simo, Integrability of Hamiltonian systems and differential Galois groups of higher variational equations,, Ann. Sci. cole Norm. Sup. (4), 40 (2007), 845. Google Scholar
[40]	K. Nishioka, Differential algebraic function fields depending rationally on arbitrary constants,, Nagoya Math. J., 113 (1989), 173. Google Scholar
[41]	K. Nishioka, General solutions depending algebraically on arbitrary constants,, Nagoya Math. J., 113 (1989), 1. Google Scholar
[42]	K. Nishioka, Lie extensions,, Proc. Japan Acad. Ser. A Math. Sci., 73 (1997), 82. doi: 10.3792/pjaa.73.82. Google Scholar
[43]	K. Nomizu, "Lie Groups and Differential Geometry,'', The Mathematical Society of Japan, (1956). Google Scholar
[44]	J.-P. Ramis and J. Martinet, Théorie de Galois différentielle et resommation,, (French) [Differential Galois theory and resummation], (1990), 117. Google Scholar
[45]	M. Rosenlicht, A remark on quotient spaces,, An. Acad. Brasil. Ci., 35 (1963), 487. Google Scholar
[46]	C. Sancho de Salas, "Grupos Algebraicos y Teoría de Invariantes,'' (Spanish) [Algebraic Groups and Invariant Theory],, Aportaciones Matemáticas: Textos [Mathematical Contributions: Texts], 16 (2001). Google Scholar
[47]	J.-P. Serre, Géométrie algébrique et géométrie analytique, (French), 6 (): 1955. Google Scholar
[48]	J.-P. Serre, Espaces fibrés algebriques (French),, Séminaire Claude Chevalley, 3 (1958), 1. Google Scholar
[49]	Y. Sibuya, "Linear Differential Equations in the Complex Domain: Problems of Analytic Continuation,'', Translated from the Japanese by the author, 82 (1990). Google Scholar
[50]	S. Shnider and P. Winternitz, Classification of systems of nonlinear ordinary differential equations with superposition principles,, J. Math. Phys., 25 (1984), 3155. doi: 10.1063/1.526085. Google Scholar
[51]	M. Sorine and P. Winternitz, Superposition laws for solutions of differential matrix Riccati equations arising in control theory,, IEEE Trans. Automat. Control, 30 (1985), 266. doi: 10.1109/TAC.1985.1103934. Google Scholar
[52]	H. Umemura, On the irreducibility of the first differential equation of Painlevé,, in, (1988), 771. Google Scholar
[53]	H. Umemura, Galois theory of algebraic and differential equations,, Nagoya Math. J., 144 (1996), 1. Google Scholar
[54]	H. Umemura, Differential Galois theory of infinite dimension,, Nagoya Math. J., 144 (1996), 59. Google Scholar
[55]	H. Umemura, Sur l'équivalence des théories de Galois différentielles générales,, (French) [On the equivalence of general differential Galois theories], 346 (2008), 1155. Google Scholar
[56]	M. van der Put and M. F. Singer, "Galois Theory of Linear Differential Equations,'', Grundlehren der Mathematischen Wissenschaften [Fundamental Principles of Mathematical Sciences], 328 (2003). Google Scholar
[57]	E. Vessiot, Sur l'intégration des equations différentielles linéaires, (French), 9 (1892), 197. Google Scholar
[58]	E. Vessiot, Sur une classe d'équations différentielles,, Ann. Sci. École Norm. Sup. (3), 10 (1893), 53. Google Scholar
[59]	E. Vessiot, Sur une classe systèmes d'équations différentielles ordinaires,, Compt. Rend. Acad. Sci. Paris, (1893), 1112. Google Scholar
[60]	E. Vessiot, Sur les systèmes d'équations différentielles du premier ordre qui ont des systèmes fondamentaux d'intégrales,, Ann. Fac. Sci. Toulouse Sci. Math. Sci. Phys., 8 (1894). Google Scholar
[61]	E. Vessiot, Sur la théorie de Galois et ses diverses généralisations, (French), 21 (1904), 9. Google Scholar
[62]	E. Vessiot, Sur la réductibilité des systèmes automorphes dont le groupe d'automorphie est un groupe continu fini simplement transitif, (French), 57 (1940), 1. Google Scholar

[1]	Ulrike Kant, Werner M. Seiler. Singularities in the geometric theory of differential equations. Conference Publications, 2011, 2011 (Special) : 784-793. doi: 10.3934/proc.2011.2011.784
[2]	Wilhelm Schlag. Spectral theory and nonlinear partial differential equations: A survey. Discrete & Continuous Dynamical Systems - A, 2006, 15 (3) : 703-723. doi: 10.3934/dcds.2006.15.703
[3]	Carmen Núñez, Rafael Obaya. A non-autonomous bifurcation theory for deterministic scalar differential equations. Discrete & Continuous Dynamical Systems - B, 2008, 9 (3&4, May) : 701-730. doi: 10.3934/dcdsb.2008.9.701
[4]	Yuhki Hosoya. First-order partial differential equations and consumer theory. Discrete & Continuous Dynamical Systems - S, 2018, 11 (6) : 1143-1167. doi: 10.3934/dcdss.2018065
[5]	Yanzhao Cao, Anping Liu, Zhimin Zhang. Special section on differential equations: Theory, application, and numerical approximation. Discrete & Continuous Dynamical Systems - B, 2015, 20 (5) : i-ii. doi: 10.3934/dcdsb.2015.20.5i
[6]	Fathalla A. Rihan, Yang Kuang, Gennady Bocharov. From the guest editors: "Delay Differential Equations: Theory, Applications and New Trends". Discrete & Continuous Dynamical Systems - S, 2020, 13 (9) : i-iv. doi: 10.3934/dcdss.2020404
[7]	Masaki Hibino. Gevrey asymptotic theory for singular first order linear partial differential equations of nilpotent type — Part I —. Communications on Pure & Applied Analysis, 2003, 2 (2) : 211-231. doi: 10.3934/cpaa.2003.2.211
[8]	Wenying Feng, Guang Zhang, Yikang Chai. Existence of positive solutions for second order differential equations arising from chemical reactor theory. Conference Publications, 2007, 2007 (Special) : 373-381. doi: 10.3934/proc.2007.2007.373
[9]	Angelo B. Mingarelli. Nonlinear functionals in oscillation theory of matrix differential systems. Communications on Pure & Applied Analysis, 2004, 3 (1) : 75-84. doi: 10.3934/cpaa.2004.3.75
[10]	Santiago Capriotti. Dirac constraints in field theory and exterior differential systems. Journal of Geometric Mechanics, 2010, 2 (1) : 1-50. doi: 10.3934/jgm.2010.2.1
[11]	Leon Petrosyan, David Yeung. Shapley value for differential network games: Theory and application. Journal of Dynamics & Games, 2020 doi: 10.3934/jdg.2020021
[12]	Luigi Fontana, Steven G. Krantz and Marco M. Peloso. Hodge theory in the Sobolev topology for the de Rham complex on a smoothly bounded domain in Euclidean space. Electronic Research Announcements, 1995, 1: 103-107.
[13]	Miriam Manoel, Patrícia Tempesta. Binary differential equations with symmetries. Discrete & Continuous Dynamical Systems - A, 2019, 39 (4) : 1957-1974. doi: 10.3934/dcds.2019082
[14]	Ildoo Kim. An $L_p$-Lipschitz theory for parabolic equations with time measurable pseudo-differential operators. Communications on Pure & Applied Analysis, 2018, 17 (6) : 2751-2771. doi: 10.3934/cpaa.2018130
[15]	Huaiyu Jian, Xiaolin Liu, Hongjie Ju. The regularity for a class of singular differential equations. Communications on Pure & Applied Analysis, 2013, 12 (3) : 1307-1319. doi: 10.3934/cpaa.2013.12.1307
[16]	Tomás Caraballo, Gábor Kiss. Attractivity for neutral functional differential equations. Discrete & Continuous Dynamical Systems - B, 2013, 18 (7) : 1793-1804. doi: 10.3934/dcdsb.2013.18.1793
[17]	Michael Dellnitz, Mirko Hessel-Von Molo, Adrian Ziessler. On the computation of attractors for delay differential equations. Journal of Computational Dynamics, 2016, 3 (1) : 93-112. doi: 10.3934/jcd.2016005
[18]	Ludwig Arnold, Igor Chueshov. Cooperative random and stochastic differential equations. Discrete & Continuous Dynamical Systems - A, 2001, 7 (1) : 1-33. doi: 10.3934/dcds.2001.7.1
[19]	Gaston Mandata N ' Guerekata. Remarks on almost automorphic differential equations. Conference Publications, 2001, 2001 (Special) : 276-279. doi: 10.3934/proc.2001.2001.276
[20]	Hermann Brunner, Stefano Maset. Time transformations for delay differential equations. Discrete & Continuous Dynamical Systems - A, 2009, 25 (3) : 751-775. doi: 10.3934/dcds.2009.25.751

2019 Impact Factor: 1.338

American Institute of Mathematical Sciences

Lie's reduction method and differential Galois theory in the complex analytic context

References:

References:

Tools

Metrics

Other articles
by authors

Tools

Metrics

Other articles
by authors

American Institute of Mathematical Sciences

Lie's reduction method and differential Galois theory in the complex analytic context

References:

References:

Tools

Metrics

Other articlesby authors

Tools

Metrics

Other articlesby authors

Other articles
by authors

Other articles
by authors