John Harnad
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Hungarian mathematical physicist
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John Harnadmathematics Degrees
Mathematics
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Mathematical Physics
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Measure Theory
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Mathematics
John Harnad's Degrees
- PhD Physics Eötvös Loránd University
Why Is John Harnad Influential?
(Suggest an Edit or Addition)According to Wikipedia, John Harnad is a Hungarian-born Canadian mathematical physicist. He did his undergraduate studies at McGill University and his doctorate at the University of Oxford under the supervision of John C. Taylor. His research is on integrable systems, gauge theory and random matrices.
John Harnad's Published Works
Number of citations in a given year to any of this author's works
Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author
Published Works
- The trouble with Physics: The rise of string theory, the fall of a Science, and what comes next (2008) (354)
- Trouble with Physics (2007) (203)
- Isospectral hamiltonian flows in finite and infinite dimensions (1988) (177)
- Darboux coordinates and Liouville-Arnold integration in loop algebras (1992) (156)
- Dual isomonodromic deformations and moment maps to loop algebras (1993) (143)
- Group actions on principal bundles and invariance conditions for gauge fields (1980) (133)
- Constraints and field equations for ten dimensional super Yang-Mills theory (1986) (112)
- Duality, Biorthogonal Polynomials¶and Multi-Matrix Models (2001) (110)
- Superintegrability in Classical and Quantum Systems (2004) (104)
- Bäcklund transformations for nonlinear sigma models with values in Riemannian symmetric spaces (1984) (93)
- Superposition principles for matrix Riccati equations (1983) (92)
- Differential Systems for Biorthogonal Polynomials Appearing in 2-Matrix Models and the Associated Riemann–Hilbert Problem (2002) (88)
- Symmetry reduction for nonlinear relativistically invariant equations (1984) (87)
- Hypergeometric $${\tau}$$τ -Functions, Hurwitz Numbers and Enumeration of Paths (2014) (84)
- Tensor fields invariant under subgroups of the conformal group of space‐time (1978) (81)
- Modular solutions to equations of generalized Halphen type (1998) (74)
- Integrable Fredholm Operators and Dual Isomonodromic Deformations (1997) (74)
- Group actions on principal bundles and dimensional reduction (1980) (74)
- Generalized Drinfeld-Sokolov reductions and KdV type hierarchies (1992) (69)
- Semiclassical Orthogonal Polynomials, Matrix Models and Isomonodromic Tau Functions (2004) (68)
- Systems of ordinary differential equations with nonlinear superposition principles (1982) (67)
- Integrable Systems: From Classical to Quantum (2000) (66)
- Partition functions for matrix models and isomonodromic tau functions (2002) (64)
- Quantum Isomonodromic Deformations and the Knizhnik--Zamolodchikov Equations (1994) (63)
- Constraint equations and field equations in supersymmetric N = 3 Yang-Mills theory (1985) (61)
- Fermionic construction of partition functions for two-matrix models and perturbative Schur function expansions (2005) (61)
- Generating functions for weighted Hurwitz numbers (2014) (53)
- 2D Toda τ-Functions as Combinatorial Generating Functions (2015) (52)
- Weighted Hurwitz numbers and hypergeometric $\tau$-functions: an overview (2015) (47)
- The bispectral problem (1998) (45)
- Hamiltonian Structure of Equations Appearing in Random Matrices (1993) (44)
- The soliton correlation matrix and the reduction problem for integrable systems (1984) (43)
- The Yang-Mills system in compactified Minkowski space; Invariance conditions and SU(2) invariant solutions (1979) (42)
- Abelian integrals and the reduction method for an integrable Hamiltonian system (1985) (41)
- Group theoretical approach to superposition rules for systems of Riccati equations (1981) (40)
- Weighted Hurwitz Numbers and Topological Recursion (2018) (39)
- Gauge theories for space–time symmetries. I (1976) (39)
- Schur function expansions of KP τ-functions associated to algebraic curves (2010) (35)
- Scalar Products of Symmetric Functions and Matrix Integrals (2002) (35)
- Canonical connections on Riemannian symmetric spaces and solutions to the Einstein–Yang–Mills equations (1980) (34)
- Darboux Coordinates on Coadjoint Orbits of Lie Algebras (1996) (33)
- Classical and quantum integrable systems in 263-1263-1263-1and separation of variables (1993) (32)
- Weighted Hurwitz numbers and topological recursion: An overview (2016) (31)
- Tau Functions and their Applications (2021) (29)
- Supersymmetric Yang-Mills equations and supertwistors (1989) (29)
- Superposition of solutions to Bäcklund transformations for the SU(n) principal σ-model (1984) (28)
- Fermionic Approach to Weighted Hurwitz Numbers and Topological Recursion (2017) (28)
- 2D Toda \tau-functions as combinatorial generating functions (2014) (26)
- Duality of Spectral Curves Arising in Two-Matrix Models (2001) (25)
- MATRIX INTEGRALS AS BOREL SUMS OF SCHUR FUNCTION EXPANSIONS (2002) (25)
- Random Matrices, Random Processes and Integrable Systems (2011) (23)
- Quantum Hurwitz numbers and Macdonald polynomials (2015) (22)
- Loop Algebra Moment Maps and Hamiltonian Models for the Painleve Transcendants (1993) (22)
- Geometrical and Topological Methods in Gauge Theories (1980) (20)
- Harmonics on hyperspheres, separation of variables and the bethe ansatz (1995) (19)
- Isomonodromic Deformations and Applications in Physics (2002) (19)
- Proceedings of the CRM Workshop on Hamiltonian Systems, Transformation Groups and Spectral Transform Methods (1990) (19)
- Multi-Hamiltonian structures for r-matrix systems (2002) (18)
- Theory of the low-frequency reflectivity of germanium and lead telluride in a magnetic field (1968) (18)
- R‐matrix construction of electromagnetic models for the Painlevé transcendents (1994) (17)
- Fermionic construction of tau functions and random processes (2007) (17)
- Superintegrability, Lax matrices and separation of variables (2003) (17)
- Superharmonic Perturbations of a Gaussian Measure, Equilibrium Measures and Orthogonal Polynomials (2008) (17)
- Convolution symmetries of integrable hierarchies, matrix models and \tau-functions (2009) (17)
- Symplectic Geometries on $T^*\widetilde{G}$, Hamiltonian Group Actions and Integrable Systems (1992) (16)
- On the U(2) invariant solutions to Yang-Mills equations in compactified Minkowski space (1978) (16)
- Pseudopotentials and Lie symmetries for the generalized nonlinear Schrödinger equation (1982) (16)
- Spinor fields invariant under space-time transformations (1980) (15)
- Isospectral flow in loop algebras and quasiperiodic solutions of the sine‐Gordon equation (1992) (15)
- Two-dimensional Krall-Sheffer polynomials and integrable systems (2001) (15)
- Symmetric polynomials, generalized Jacobi-Trudi identities andτ-functions (2013) (15)
- Multiple sums and integrals as neutral BKP tau functions (2011) (14)
- Isotropic geometry and twistors in higher dimensions. II. Odd dimensions, reality conditions, and twistor superspaces (1995) (14)
- Isotropic geometry and twistors in higher dimensions. I. The generalized Klein correspondence and spinor flags in even dimensions (1992) (13)
- Picard-Fuchs Equations, Hauptmoduls and Integrable Systems (1999) (13)
- Multispecies quantum Hurwitz numbers (2014) (13)
- Loop groups, -matrices and separation of variables (2000) (12)
- Isospectral flow and Liouville-Arnold integration in loop algebrast (1993) (12)
- Multispecies Weighted Hurwitz Numbers (2015) (12)
- Bilinear expansions of lattices of KP τ-functions in BKP τ-functions: A fermionic approach (2021) (12)
- Coadjoint Orbits, Spectral Curves and Darboux Coordinates (1991) (11)
- Isotropic Grassmannians, Plücker and Cartan maps (2020) (11)
- Superintegrability, Lax matrices and separation of variables 1 (2006) (11)
- Janossy densities, multimatrix spacing distributions and Fredholm resolvents (2004) (10)
- Polynomial KP and BKP $$\tau $$-Functions and Correlators (2020) (10)
- Matrix nonlinear Schrödinger equations and moment maps into loop algebras (1992) (10)
- Super loop groups, Hamiltonian actions and super Virasoro algebras (1990) (9)
- Quadratic pseudopotentials for Gl(N,C) principal sigma models☆ (1984) (9)
- MOMENT MAPS TO LOOP ALGEBRAS CLASSICAL R-MATRIX AND INTEGRABLE SYSTEMS † (1993) (9)
- Rationally weighted Hurwitz numbers, Meijer G-functions and matrix integrals (2019) (9)
- On the Bilinear Equations for Fredholm Determinants Appearing in Random Matrices (1999) (8)
- Constrained Hamiltonian systems on Lie groups, moment map reductions, and central extensions (1994) (8)
- Generalized tops and moment maps to loop algebras (1991) (7)
- Generating weighted Hurwitz numbers (2019) (7)
- Bilinear expansion of Schur functions in Schur Q-functions: A fermionic approach (2020) (7)
- Matrix model generating function for quantum weighted Hurwitz numbers (2019) (6)
- Formal power series solutions of supersymmetric (N=3) Yang-Mills equations (1986) (6)
- Dual Isomonodromic Tau Functions and Determinants of Integrable Fredholm Operators (2001) (6)
- SO(4) reduction of the Yang–Mills equations for the classical gauge groups (1984) (6)
- Constrained reductions of two-dimensional dispersionless Toda hierarchy, Hamiltonian structure, and interface dynamics (2003) (5)
- The eikonal approximation and E(2) invariance (1975) (5)
- Weighted Hurwitz numbers and hypergeometric -functions (2015) (5)
- Twisted Diff S1-action on loop groups and representations of the virasoro algebra (1990) (5)
- Finite dimensional Kadomtsev-Petviashvili τ-functions. I. Finite Grassmannians (2014) (5)
- BISPECTRAL OPERATORS OF RANK 1 AND DUAL ISOMONODROMIC DEFORMATIONS (1996) (4)
- Virasoro generators and bilinear equations for isomonodromic tau functions (2002) (4)
- GAUGE THEORY OF THE CONFORMAL GROUP (1977) (4)
- Asymptotics of quantum weighted Hurwitz numbers (2018) (4)
- SO(4) reduction of the SU(N) Yang-Mills-Dirac equations (1986) (4)
- Kaluza-Klein approach to the motion of non-Abelian charged particles with spin (1991) (4)
- Modular Invariants and Generalized Halphen Systems (1999) (4)
- Fermionic approach to bilinear expansions of Schur functions in Schur $Q$-functions (2020) (4)
- Integrals of rational symmetric functions, two matrix models and biorthogonal polynomials (2006) (3)
- R-matrix approach to the Krall-She er problem (2001) (3)
- Soliton Solutions to Zakharov-Shabat Systems by The Reduction Method (1984) (3)
- Liouville Generating Functions for Isospectral Flow in Loop Algebras (1990) (3)
- Lagrangian Grassmannians, CKP Hierarchy and Hyperdeterminantal Relations (2022) (3)
- Hyperspherical Harmonics, Separation of Variables and the Bethe Ansatz (1994) (3)
- Fermionic approach for evaluating integrals of rational symmetric functions (2007) (3)
- Duality , Biorthogonal Polynomials and Multi – Matrix Models 1 (2001) (2)
- Symmetry Reduction for Nonlinear wave Equations in Riemannian and Pseudo-Riemannian Spaces (1984) (2)
- Lorentz poles in a particle exchange model (1972) (2)
- Groups and Symmetries (2009) (2)
- Semiclassical asymptotics of quantum weighted Hurwitz numbers (2016) (2)
- Tau functions, infinite Grassmannians, and lattice recurrences (2022) (2)
- Symmetry in Physics (2004) (2)
- Constellations and $\tau$-functions for rationally weighted Hurwitz numbers (2020) (2)
- Constrained Reductions of 2d Dispersionless Toda Hierarchy, Hamiltonian Structure and Interface Dynamics (2004) (2)
- Symplectic Geometries on T (1995) (1)
- Tau functions, integrable systems random matrices and random processes (2007) (1)
- A generating function proof of the commutativity of certain Hamiltonian isospectral flows (1988) (1)
- 2D Toda τ-Functions as Combinatorial Generating Functions (2015) (1)
- Symplectic Reduction of the Minimally Coupled Massless Superparticle in D=10 (1990) (1)
- Bäcklund transformations, conservation laws and lie symmetries for the generalized nonlinear Schrödinger equation (1980) (1)
- Free for all (2008) (1)
- Superposition Principles for Nonlinear Differential Equations (1981) (1)
- Determinantal identity for multilevel systems and finite determinantal point processes 1 (2007) (1)
- THE SUPERSYMMETRIC SOLITON CORRELATION MATRIX (1985) (1)
- Determinantal identity for multilevel systems and finite determinantal processes (2007) (0)
- And the Riemann-hilbert Dressing Method (1997) (0)
- Realities of open access (2013) (0)
- GROUP A CTIONS ON PRINCIPAL B UNDLES A ND D IMENSIONAL R EDUCTION (1980) (0)
- Tau functions as generators of integrable systems, random processes and moduli space invariants (2013) (0)
- Hamiltonian structure of rational isomonodromic deformation systems (2022) (0)
- Weighted Hurwitz Numbers, "Equation missing" -Functions, and Matrix Integrals (2020) (0)
- Geometrical and topological methods in gauge theories : proceedings of the Canadian Mathematical Society Summer Research Institute, McGill University, Montréal, September 3-8, 1979 (1980) (0)
- Bispectral Operators, Dual Isomonodromic Deformations and the Riemann-Hilbert Dressing Method (1997) (0)
- The KP hierarchy and its standard reductions (2021) (0)
- Bilinear expansions of lattices of KP $\tau$-functions in BKP $\tau$-functions: a fermionic approach (2020) (0)
- Fermionic Approach to Weighted Hurwitz Numbers and Topological Recursion (2017) (0)
- Symmetric polynomials, quantum Jacobi-Trudi identities and $\tau$-functions (2013) (0)
- Fredholm Pfaffian τ -Functions for Orthogonal Isospectral and Isomonodromic Systems (2022) (0)
- Rational Reductions of 2dToda Hierarchy and Hamiltonian Structure of Interface Dynamics (2003) (0)
- Isomonodromic deformations and applications in physics : CRM workshop, May 1-6, 2000, Montréal, Canada (2002) (0)
- Weighted Hurwitz numbers, $\tau$-functions and matrix integrals (2020) (0)
- Determinantal identity for multilevel ensembles and finite determinantal point processes (2012) (0)
- Approaches to Open Access in Scientific Publishing (2008) (0)
- Random matrices and integrable systems: introduction and overview (2006) (0)
- Determinantal identity for multilevel ensembles and finite determinantal point processes (2012) (0)
- Generating functions for weighted Hurwitz numbers: enumeration of branched coverings (2021) (0)
- Hamiltonian dynamics, classical R-matrices and isomonodromic deformations (1997) (0)
- 0 21 10 76 v 1 2 9 N ov 2 00 2 Multi-Hamiltonian structures for r-matrix systems (0)
- Janossy Densities, Multimatrix Spacing Distributions (2004) (0)
- Weighted Hurwitz Numbers and Topological Recursion (2020) (0)
- Weighted Hurwitz numbers, topological recursion and isomonodromic deformations (2016) (0)
- Zero-temperature limit of quantum weighted Hurwitz numbers (2017) (0)
- Subgroups of Lie groups and symmetry reduction for nonlinear partial differential equations (1984) (0)
- Debating the future of physics publishing (2007) (0)
- Convolution symmetries and flows (2012) (0)
- Integrable systems : from classical to quantum : proceedings of the 38th session of the séminaire de mathématiques supérieures, July 26 - August 6, 1999 Montréal, Québec, Canada (2000) (0)
- Other related integrable hierarchies (2021) (0)
- Clarifying Open Access: its implications for the research community (Letter) (2007) (0)
- 1 Monodromy Preserving Hamiltonian Systems 1 . 1 Isomonodromic Deformation Equations (1998) (0)
- GROUP THEORETICAL METHODS AND THE NONLINEAR SCHRODINGER EQUATION (1982) (0)
- Fredholm Pfaffian $$\tau $$ τ -Functions for Orthogonal Isospectral and Isomonodromic Systems (2021) (0)
- Pseudopotentials and Symmetries for Generalized Nonlinear Schrödinger Equations (1981) (0)
- Invariance conditions for gauge fields (1980) (0)
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