AN excellent introduction to the subject of vector analysis is provided by this book. It is admirably clear, and a natural temptation to develop so fertile a theory in excessive detail and to ...

We give a criterion for the subsheaf G (-D) ⊂ F to lift to W, in terms of the geometry of a scroll in the extension space PH¹ (X, Hom (F, E)). We use this criterion to describe the tangent cone to the ...

Abstract In this paper, we introduce the concept of a weak q-distance and for this distance we derive a set-valued version of Ekeland's variational principle in the setting of uniform spaces. By using ...

General introduction -- Beginnings : mathematics of bones -- Geometry south of the Sahara -- Numbers -- Beginnings of written mathematics: Egypt -- The Maghrebian tradition -- Combinatorics and ...

Fractal geometry offers a rigorous framework for describing irregular and self-similar structures that are ubiquitous across nature and technology. This field has profoundly influenced our ...