This two-volume monograph obtains fundamental notions and results of the
standard differential geometry of smooth (CINFINITY)
manifolds, without using differential calculus. Here, the
sheaf-theoretic character is emphasised. This has theoretical advantages
such as greater perspective, clarity and unification, but also practical
benefits ranging from elementary particle physics, via gauge theories
and theoretical cosmology (`differential spaces'), to non-linear PDEs
(generalised functions). Thus, more general applications, which are no
longer `smooth' in the classical sense, can be coped with. The treatise
might also be construed as a new systematic endeavour to confront the
ever-increasing notion that the `world around us is far from being
smooth enough'.
Audience: This work is intended for postgraduate students and
researchers whose work involves differential geometry, global analysis,
analysis on manifolds, algebraic topology, sheaf theory, cohomology,
functional analysis or abstract harmonic analysis