Ryszard Nest
Professor, emeritus
Department of Mathematical Sciences
Universitetsparken 5
2100 København Ø
- 2024
- Published
Finiteness of metrics on state spaces
Kyed, D. & Nest, Ryszard, 2024, In: Bulletin of the London Mathematical Society. 56, 1, p. 288-295Research output: Contribution to journal › Journal article › Research › peer-review
- 2023
- Published
Exotic cyclic cohomology classes and Lipschitz algebras
Goffeng, M. & Nest, Ryszard, 2023, In: Annals of K-Theory. 8, 2, p. 221-243 23 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 2021
- Published
Projective representation theory for compact quantum groups and the quantum Baum-Connes assembly map
Commer, K. D., Martos Prieto, Ruben & Nest, Ryszard, 2021, arxiv.org, 54 p.Research output: Working paper › Preprint
- Published
Equivariant Algebraic Index Theorem
Gorokhovsky, A., De Kleijn, N. & Nest, Ryszard, 2021, In: Journal of the Institute of Mathematics of Jussieu. 20, 3, p. 929–955 27 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 2020
- Published
Quantisation of Hamiltonian coactions via twist
Bieliavsky, P., Esposito, C. & Nest, Ryszard, 2020, In: Journal of Symplectic Geometry. 18, 2, p. 385-408Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Comparison of spaces associated to DGLA via higher holonomy
Bressler, P., Gorokhovsky, A., Nest, Ryszard & Tsygan, B., 2020, K-theory in Algebra, Analysis and Topology -: ICM 2018 Satellite School and Workshop K-theory Conference, Argentina, 2018 July 16–20 and July 23–27, 2018 La Plata and Buenos Aires, Argentina. American Mathematical Society, p. 1-12 (Contemporary Mathematics, Vol. 749).Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
- Published
Tate tame symbol and the joint torsion of commuting operators
Kaad, J. & Nest, Ryszard, 2020, In: Annals of K-Theory. 5, 2, p. 181-211Research output: Contribution to journal › Journal article › Research › peer-review
- 2019
- Published
Canonical holomorphic sections of determinant line bundles
Kaad, J. & Nest, Ryszard, 2019, In: Journal fur die Reine und Angewandte Mathematik. 746, p. 67-116Research output: Contribution to journal › Journal article › Research › peer-review
- 2018
- Published
The Orbit Method for the Baum-Connes Conjecture for Algebraic Groups over Local Function Fields
Echterhoff, S., Li, K. & Nest, Ryszard, 2018, In: Journal of Lie Theory. 28, 2, p. 323-341Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The K-theory of twisted multipullback quantum odd spheres and complex projective spaces
Hajac, P. M., Nest, Ryszard, Pask, D., Sims, A. & Zielinski, B., 2018, In: Journal of Noncommutative Geometry. 12, 3, p. 823-863 41 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 2017
- Published
On quasi-classical limits of DQ-algebroids
Bressler, P., Gorokhovsky, A., Nest, Ryszard & Tsygan, B., Jan 2017, In: Compositio Mathematica. 153, 1, p. 41-67Research output: Contribution to journal › Journal article › Research › peer-review
- 2016
- Published
Uniqueness of the momentum map
Esposito, C. & Nest, Ryszard, Aug 2016, In: Journal of Geometry and Physics. 106, p. 342-351Research output: Contribution to journal › Journal article › Research › peer-review
- 2015
- Published
Deligne groupoid revisited
Bressler, P., Gorokhovsky, A., Nest, Ryszard & Tsygan, B., 2015, In: Theory and Applications of Categories. 30, p. 1001-1016Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Formality theorem for gerbes
Bressler, P., Gorokhovsky, A., Nest, Ryszard & Tsygand, B., 2015, In: Advances in Mathematics. 273, p. 215-241Research output: Contribution to journal › Journal article › Research › peer-review
- Published
A transformation rule for the index of commuting operators
Kaad, J. & Nest, Ryszard, 2015, In: Journal of Noncommutative Geometry. 9, 1, p. 83-119Research output: Contribution to journal › Journal article › Research › peer-review
- 2012
- Published
KK -theory and spectral flow in von Neumann algebras
Kaad, J., Nest, Ryszard & Rennie, A., 2012, In: Journal of K-Theory. 10, 2, p. 241-277Research output: Contribution to journal › Journal article › Research › peer-review
- Published
C*-algebras over topological spaces: filtrated K-theory
Meyer, R. & Nest, Ryszard, 2012, In: Canadian Journal of Mathematics - Journal Canadien de Mathématiques. 64, 2, p. 368-408Research output: Contribution to journal › Journal article › Research › peer-review
- 2011
- Published
On semi-classical states of quantum gravity and noncommutative geometry
Aastrup, J., Grimstrup, J. M., Paschke, M. & Nest, Ryszard, 2011, In: Communications in Mathematical Physics. 302, 3, p. 675-696 30 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Algebraic index theorem for symplectic deformations of gerbes
Bressler, P., Gorokhovsky, A., Nest, Ryszard & Tsygan, B., 2011, Noncommutative Geometry and Global Analysis. Connes, A., Gorokhovsky, A., Lesch, M., Pflaum, M. & Rangipour, B. (eds.). American Mathematical Society, p. 23-38 (Contemporary Mathematics, Vol. 546).Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
- Published
Deformations of algebroid stacks
Bressler, P., Gorokhovsky, A., Nest, Ryszard & Tsygan, B., 2011, In: Advances in Mathematics. 226, 4, p. 3013-3087Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Twisted cyclic theory, equivariant KK-theory and KMS states
Carey, A., Neshveyev, S., Nest, Ryszard & Rennie, A. C., 2011, In: Journal fuer die Reine und Angewandte Mathematik. 650, p. 161-191Research output: Contribution to journal › Journal article › Research › peer-review
- 2010
- Published
Homological algebra in bivariant K-theory and other triangulated categories I
Meyer, R. & Nest, Ryszard, 2010, In: London Mathematical Society Lecture Notes. 375, p. 236-289Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Equivariant Poincaré duality for quantum group actions.
Nest, Ryszard & Voigt, C., 2010, In: Journal of Functional Analysis. 258, 5, p. 1466-1503 37 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 2009
- Published
A new spectral triple over a space of connections
Aastrup, J., Grimstrup, J. M. & Nest, Ryszard, 2009, In: Communications in Mathematical Physics. 290, 1, p. 389-398 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
On Spectral Triples in Quantum Gravity I
Aastrup, J., M. Grimstrup, J. & Nest, Ryszard, 2009, In: Journal of Noncommutative Geometry. 3, 1, p. 47-81Research output: Contribution to journal › Journal article › Research › peer-review
- Published
On spectral triples in quantum gravity II
Aastrup, J., Grimstrup, J. M. & Nest, Ryszard, 2009, In: Journal of Noncommutative Geometry. 3, 1, p. 47-81Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Principal non-commutative torus bundles
Echterhoff, S., Nest, Ryszard & Oyono-Oyono, H., 1 Jul 2009, In: Proceedings of the London Mathematical Society. 99, 1, p. 1-31 31 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Holonomy loops, spectral triples and quantum gravity
Johannes , A., Grimstrup, J. M. & Nest, Ryszard, 27 Jul 2009, In: Classical and Quantum Gravity. p. 165001Research output: Contribution to journal › Journal article › Research › peer-review
- Published
An analogue of Serre fibrations for C*-algebra bundles
Nest, Ryszard, Echterhoff, S. & Oyono-Oyono, H., 2009, In: Adv. Stud. Pure Math. 55, p. 209--221Research output: Contribution to journal › Journal article › Research › peer-review
- Published
On spectral triples in quantum gravity: II
Nest, Ryszard, Aastrup, J. & Grimstrup, J. M., 2009, In: Classical and Quantum Gravity. 26, 6Research output: Contribution to journal › Journal article › Research › peer-review
- Published
C*-algebras over topological spaces: the bootstrap class
Nest, Ryszard & Meyer, R., 2009, In: Mu¨nster journal of mathematics. 2, p. 215-252Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Fibrations with noncommutative fibers
Nest, Ryszard, Oyono Oyono, H. & Echterhoff, S., 2009, In: Journal of Noncommutative Geometry. 3, 3Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Holonomy Loops, Spectral Triples& Quantum Gravity
Nest, Ryszard, Grimstrup, J. M. & Aastrup, J., 2009, In: Classical and Quantum Gravity. 26, 16Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Index Theory for Boundary Value Problems via Continuous Fields of C*-algebras
Nest, Ryszard, Schrohe, E. & Aastrup, J., 2009, In: Journal of Functional Analysis. 257, 8Research output: Contribution to journal › Journal article › Research › peer-review
- 2008
- Published
Chern character for twisted complexes
Bressler, P., Gorokhovsky, A., Nest, Ryszard & Tsygan, B., 1 Jan 2008, Progress in Mathematics. Springer Basel AG, p. 309-324 16 p. (Progress in Mathematics, Vol. 265).Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
- Published
Chern character for twisted complexes
Bressler, P., Gorokhovsky, A., Nest, Ryszard & Tsygan, B., 2008, In: Progress in Mathematics. 265Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Principal noncommutative torus bundles
Echterhoff, S., Nest, Ryszard & Oyono-Oyono, H., 2008, In: Proceedings of the London Mathematical Society.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Deformations of Azumaya algebras
Nest, Ryszard, Bressler, P., Gorokhovsky, A. & Tsygan, B., 2008, Actas del XVI Coloquio Latinoamericano de Algebra.Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- 2007
- Published
An analogue of the Baum-Connes isomorphism for coactions of compact groups
Nest, Ryszard & Meyer, R., 2007, In: Mathematica Scandinavica. 100, 2, p. 301-316Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Deformation quantisation of gerbes
Tsygan, B., Nest, Ryszard, Bressler, P. & Gorokhovsky, A., 2007, In: Advances in Mathematics. 214, 1, p. 230-266Research output: Contribution to journal › Journal article › Research › peer-review
- 2006
- Published
A continuous field of C*-algebras and the tangent groupoid for manifolds with boundary.
Nest, Ryszard, Aastrup, J. & Schrohe, E., 2006, In: Journal of Functional Analysis. 2Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The Baum-Connes conjecture via localisation of categories
Nest, Ryszard & Meyer, R., 2006, In: Topology. 45, 2Research output: Contribution to journal › Journal article › Research › peer-review
- 2003
- Published
The Existance and Stability of Noncommutative Scalar Solitons
Durhuus, Bergfinnur, Jonsson, T. & Nest, Ryszard, 2003, In: Communications in Mathematical Physics. 233, p. 49-78Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The existence and stability of noncommutative scalar solitons
Durhuus, Bergfinnur, Jonsson, T. & Nest, Ryszard, 1 Feb 2003, In: Communications in Mathematical Physics. 233, 1, p. 49-78 30 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
C*-structure and K-theory of Boutet de Monvel's algebra
Melo, S. T., Nest, Ryszard & Schrohe, E., 1 Jan 2003, In: Journal fur die Reine und Angewandte Mathematik. 561, p. 145-175 31 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Strict quantizations of symplectic manifolds
Natsume, T., Nest, Ryszard & Peter, I., 1 Oct 2003, In: Letters in Mathematical Physics. 66, 1-2, p. 73-89 17 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 2002
- Published
Riemann-Roch theorems via deformation quantization, I
Bressler, P., Nest, Ryszard & Tsygan, B., 15 Apr 2002, In: Advances in Mathematics. 167, 1, p. 1-25 25 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Riemann-Roch theorems via deformation quantization, II1
Bressler, P., Nest, Ryszard & Tsygan, B., 15 Apr 2002, In: Advances in Mathematics. 167, 1, p. 26-73 48 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Formal deformations of symplectic Lile ALgbroids, deformations of holomorphic structures and index theorems
Nest, Ryszard & Tsygan, B., 2002, In: Asian Journal of Mathematics. 6, 5, p. 599-633Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Local formula for the index of a Fourier Integral Operator
Nest, Ryszard, Leichtman, E. & Tsygan, B., 2002, In: Journal of Differential Geometry. 59, p. 269-300Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Riemann-Roch theorems for D-modules via deformation quantization, II
Nest, Ryszard, Bressler, P. & Tsygan, B., 2002, In: Advances in Mathematics. 17, p. 1-25Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The structure of the Brauer group and crossed products of C0(X)-linear group actions on C0(X,K)
Nest, Ryszard & Echterhoff, S., 2002, In: Transactions of the American Mathematical Society. 353, p. 3685-3712Research output: Contribution to journal › Journal article › Research › peer-review
- 2001
- Published
Noncommutative scalar solitons: Existence and nonexistence
Durhuus, Bergfinnur, Jonsson, T. & Nest, Ryszard, 2001, In: Physics Letters B. 500, p. 320-325Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Deformations of symplectic Lie algebroids, deformations of holomorphic symplectic structures, and index theorems
Nest, Ryszard & Tsygan, B., 2001, In: Asian Journal of Mathematics. 5, 4Research output: Contribution to journal › Journal article › Research › peer-review
- 1999
- Published
Topological approach to quantum surfaces
Natsume, T. & Nest, Ryszard, 1 Jan 1999, In: Communications in Mathematical Physics. 202, 1, p. 65-87 23 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 1998
- Published
Dixmier's trace for boundary value problems
Nest, Ryszard & Schrohe, E., Jun 1998, In: Manuscripta Mathematica. 96, 2, p. 203-218 16 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 1997
- Published
A Riemann-Roch Type Formula for the Microlocal Euler Class
Bressler, P., Nest, Ryszard & Tsygan, B., 1 Dec 1997, In: International Mathematics Research Notices. 20, p. 1032-1043 12 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The Atiyah-Singer index theorem as passage to the classical limit in quantum mechanics
Elliott, G. A., Natsume, T. & Nest, Ryszard, 1997, In: Communications in Mathematical Physics. 182, p. 505-533Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The Atiyah-Singer index theorem as passage to the classical limit in quantum mechanis
Elliott, G. A., Natsume, T. & Nest, Ryszard, 1997, In: Communications in Mathematical Physics. 182, p. 505-533Research output: Contribution to journal › Journal article › Research › peer-review
- 1996
- Published
Irreducible inclusions of factors, multiplicative unitaries, and Kac algebras
Enock, M. & Nest, Ryszard, 1 May 1996, In: Journal of Functional Analysis. 137, 2, p. 466-543 78 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Formal Versus Analytic Index Theorems
Nest, Ryszard & Tsygan, B., 1 Dec 1996, In: International Mathematics Research Notices. 11, p. 556-564 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Formal deformations of symplectic manifolds with boundary
Nest, Ryszard & Tsygan, B., 1 Dec 1996, In: Journal fur die Reine und Angewandte Mathematik. 481, p. 27-54 28 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 1995
- Published
Algebraic index theorem
Nest, Ryszard & Tsygan, B., 1 Sep 1995, In: Communications in Mathematical Physics. 172, 2, p. 223-262 40 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Algebraic index theorem for families
Nest, Ryszard & Tsygan, B., Jul 1995, In: Advances in Mathematics. 113, 2, p. 151-205 55 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 1994
- Published
The local structure of the cyclic cohomology of heisenberg lie groups
Natsume, T. & Nest, Ryszard, 1 Feb 1994, In: Journal of Functional Analysis. 119, 2, p. 481-498 18 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 1993
- Published
Topological Field Theories from Quantum 6J-symbols
Durhuus, Bergfinnur, Jakobsen, Hans Plesner & Nest, Ryszard, 1993, In: Reviews in Mathematical Physics. 5, p. 1-67Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The Heisenberg group and K-theory
Elliott, G. A., Natsume, T. & Nest, Ryszard, 1993, In: K - Theory. 7, p. 409-428Research output: Contribution to journal › Journal article › Research › peer-review
- 1992
- Published
A construction of topological quantum fieldtheories from 6J-symbols
Durhuus, Bergfinnur, Jakobsen, Hans Plesner & Nest, Ryszard, Jan 1992, In: Nuclear Physics B (Proceedings Supplements). 25, PART 1, p. 109-121 13 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
A construction of topological quantum field theories from 6j-symbols
Durhuus, Bergfinnur, Jakobsen, Hans Plesner & Nest, Ryszard, 1992, In: Nuclear physics B, Proceedings supplements. 25A, p. 109-121Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Topological field theories from quantum 6j-symbols
Jakobsen, Hans Plesner, Durhuus, Bergfinnur & Nest, Ryszard, 1992, Topological and Geometrical Methods in Field Theory, Turku 1992. Singapore: World Scientific, p. 121-134Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- 1991
- Published
The cyclic homology of algebras with adjoined unit
Elliott, G. A., Nest, Ryszard & Rørdam, M., 1991, In: Proceedings of the American Mathematical Society. 113, p. 389-395Research output: Contribution to journal › Journal article › Research › peer-review
- 1988
- Published
Cyclic cohomology for one-parameter smooth crossed products
Elliott, G. A., Natsume, T. & Nest, Ryszard, 1 Dec 1988, In: Acta Mathematica. 160, 1, p. 285-305 21 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Cyclic cohomology of crossed products with Z
Nest, Ryszard, Oct 1988, In: Journal of Functional Analysis. 80, 2, p. 235-283 49 p.Research output: Contribution to journal › Review › Research › peer-review
- 1986
- Published
Quantum mechanical flux band dynamics of a superconducting weak link constriction ring
Prance, H., Spiller, T. P., Mutton, J. E., Prance, R. J., Clark, T. D. & Nest, Ryszard, 31 Mar 1986, In: Physics Letters A. 115, 3, p. 125-131 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 1985
- Published
On the possibility of detecting solar neutrinos with an 115In detector
Drukier, A. K. & Nest, Ryszard, 15 Sep 1985, In: Nuclear Inst. and Methods in Physics Research, A. 239, 3, p. 605-622 18 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Charge band behaviour in a superconducting weak link driven by a normal Faraday law voltage source
Prance, H., Prance, R. J., Spiller, T. P., Mutton, J. E., Clark, T. C. & Nest, Ryszard, 9 Sep 1985, In: Physics Letters A. 111, 4, p. 199-204 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Localisation of pair charge states in a superconducting weak link constriction ring
Prance, R. J., Clark, T. D., Mutton, J. E., Prance, H., Spiller, T. P. & Nest, Ryszard, 21 Jan 1985, In: Physics Letters A. 107, 3, p. 133-138 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
ID: 12801
Most downloads
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84
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Canonical holomorphic sections of determinant line bundles
Research output: Contribution to journal › Journal article › Research › peer-review
Published -
33
downloads
Quantisation of Hamiltonian coactions via twist
Research output: Contribution to journal › Journal article › Research › peer-review
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21
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Tate tame symbol and the joint torsion of commuting operators
Research output: Contribution to journal › Journal article › Research › peer-review
Published