caa a22 4500 467887926 CHVBK 20180406152740.0 cr unu---uuuuu 170328e20060201xx s 000 0 eng 10.1007/s10714-005-0221-x doi (NATIONALLICENCE)springer-10.1007/s10714-005-0221-x Fukui Takao Department of Language and Culture, Dokkyo University, 340-0042, Gakuencho, Soka, Saitama, Japan aut Magnitude-redshift relation with varying dark-energy density [Elektronische Daten] [Takao Fukui] The magnitude-redshift test is applied to cosmological models in extended theories of gravity containing extra terms in the Lagrangian which give rise to an evolving dark-energy component. Two classes of models are considered: one based on generalized scalar-tensor theory and the other on curvature corrections to the metric tensor. Results are compared to recent observational data of Type Ia supernovae. The predictions of both kinds of models may provide better fits to the data depending on dimensionless free parameters of order ∼ 0.01−0.1. Springer-Verlag, 2005 Accelerating universe nationallicence Variable Lambda nationallicence m-z relation nationallicence General Relativity and Gravitation Springer US; http://www.springer-ny.com 38/2(2006-02-01), 311-324 0001-7701 38:2<311 2006 38 10714 https://doi.org/10.1007/s10714-005-0221-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10714-005-0221-x text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Fukui Takao Department of Language and Culture, Dokkyo University, 340-0042, Gakuencho, Soka, Saitama, Japan aut NATIONALLICENCE 773 0- General Relativity and Gravitation Springer US; http://www.springer-ny.com 38/2(2006-02-01), 311-324 0001-7701 38:2<311 2006 38 10714 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer