  The inclusive production cross sections for forward jets, as well for jets in
dijet events with at least one jet emitted at central and the other at forward
pseudorapidities, are measured in the range of transverse momenta pt = 35-150
GeV/c in proton-proton collisions at sqrt(s) = 7 TeV by the CMS experiment at
the LHC. Forward jets are measured within pseudorapidities 3.2<|eta|<4.7, and
central jets within the |eta|<2.8 range. The double differential cross sections
with respect to pt and eta are compared to predictions from three approaches in
perturbative quantum chromodynamics: (i) next-to-leading-order calculations
obtained with and without matching to parton-shower Monte Carlo simulations,
(ii) PYTHIA and HERWIG parton-shower event generators with different tunes of
parameters, and (iii) CASCADE and HEJ models, including different non-collinear
corrections to standard single-parton radiation. The single-jet inclusive
forward jet spectrum is well described by all models, but not all predictions
are consistent with the spectra observed for the forward-central dijet events.
