English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We investigate the cosmological reconstruction in modified f(R,T) gravity,where R is the Ricci scalar and T the trace of the stress-energy tensor.Special attention is attached to the case in which the function f is given by f(R, T) = f1 (R) + f2 (T). The use of auxiliary scalar field is considered withtwo known examples for the scale factor corresponding to an expanding universe.In the first example, where ordinary matter is usually neglected for obtainingthe unification of matter dominated and accelerated phases with f(R)gravity, itis shown in this paper that this unification can be obtained without neglectordinary matter. In the second example, as in f(R)gravity, model of f(R, T)gravity with transition of matter dominated phase to the acceleration phase isobtained. In both cases, linear function of the trace is assumed for f2(T) andit is obtained that f1(R) is proportional to a power of R with exponentsdepending on the input parameters.

Reconstruction of f(R, T) gravity describing matter dominated and accelerated phases