Björn O. Roos - Concepedia

Author

Björn O. Roos

Also Known As

B. O. ROOS, B. O. Roos, B.O Roos, B.O. Roos, BJORN ROOS, BJÖRN O. ROOS, Bjorn O. Roos, Bjorn Roos, Bjrn Roos, Björn O Roos

364

Publications

42.3K

Citations

H-Index

150

Concepts

All Affiliations

Lund University Swedish e-Science Research Centre Universitat de València Stockholm University

About

Björn O. Roos is an author at Lund University specializing in natural sciences, engineering, and quantum chemistry.

Top Concepts

#	Concept	H-Index	Publications	Citations
1	Natural Sciences	69	174	20.5K
2	Engineering	67	177	28.6K
3	Medicine	8	8	406
4	Arts	1	1	44
5	Health Sciences	1	1	16

Björn O. Roos

251

Publications

37.6K

Citations

H-Index

Page 1

	Year	Citations
A complete active space SCF method (CASSCF) using a density matrix formulated super-CI approach Björn O. Roos, Peter R. Taylor, Per E.M. Sigbahn Chemical Physics Numerical AnalysisEngineeringAerospace EngineeringNumerical SimulationInverse Problems	1980	3.9K
Second-order perturbation theory with a complete active space self-consistent field reference function Kerstin Andersson, Per‐Åke Malmqvist, Björn O. Roos The Journal of Chemical Physics Spectral TheoryEngineeringGeometric Singular Perturbation TheoryFunctional AnalysisConstructive Field Theory	1992	3.8K
MOLCAS: a program package for computational chemistry Gunnar Karlström, Roland Lindh, Per‐Åke Malmqvist, Computational Materials Science EngineeringMathematical ChemistryMolecular ComputingComputational ChemistryChemistry	2003	1.7K
MOLCAS 7: The Next Generation Francesco Aquilante, Luca De Vico, Nicolas Ferré, Journal of Computational Chemistry	2009	1.5K
The multi-state CASPT2 method James P. Finley, Per‐Åke Malmqvist, Björn O. Roos, Chemical Physics Letters EngineeringState Space SearchModeling And SimulationComputer ScienceBiological Computation	1998	1.5K
Main Group Atoms and Dimers Studied with a New Relativistic ANO Basis Set Björn O. Roos, Roland Lindh, Per‐Åke Malmqvist, The Journal of Physical Chemistry A	2003	1.5K
The complete active space SCF (CASSCF) method in a Newton–Raphson formulation with application to the HNO molecule Per E. M. Siegbahn, Jan Almløf, Anders Heiberg, The Journal of Chemical Physics Numerical AnalysisElectron DensityNewton–raphson FormulationEngineeringHno Molecule	1981	1.2K
The restricted active space (RAS) state interaction approach with spin–orbit coupling Per‐Åke Malmqvist, Björn O. Roos, Bernd Schimmelpfennig Chemical Physics Letters SpintronicsSpin-charge-orbit ConversionSpin-orbit EffectsEngineeringPhysics	2002	1.2K
Determinant based configuration interaction algorithms for complete and restricted configuration interaction spaces Jeppe Olsen, Björn O. Roos, Poul Jo rgensen, The Journal of Chemical Physics Mathematical ProgrammingEngineeringMatrix TheoryArray ComputingApproximate Computing	1988	1.1K
A modified definition of the zeroth-order Hamiltonian in multiconfigurational perturbation theory (CASPT2) Giovanni Ghigo, Björn O. Roos, Per‐Åke Malmqvist Chemical Physics Letters Spectral TheoryHamiltonian TheoryPerturbation MethodPhysicsZeroth-order Hamiltonian	2004	1K

Page 1