3 citations · 5 across the 9 of their papers we have counts for
10 papers
A group-theoretical approach to Lehmer's totient problem
Manuel Norman
Lehmer's totient problem asks whether there exists any composite number such that , where is Euler totient function. It is known that if any such …
On the critical points of entire functions
Manuel Norman
Several years ago, Aziz and Zargar, while considering some questions related to Sendov's conjecture, solved a problem posed by Brown (see [1,2]), showing that any complex polynomia…
Primigraph spaces
Manuel Norman
In this paper we introduce primigraph spaces, which are topological spaces together with a sheaf of -algebras that can be covered by some Prim A's, that is, by the primitive s…
(Co)homology theories for structured spaces arising from their corresponding poset
Manuel Norman
In [1] we introduced the notion of 'structured space', i.e. a space which locally resembles various algebraic structures. In [2] and [3] we studied some cohomology theories related…
Conical calculus on schemes and perfectoid spaces via stratification
Manuel Norman
In this paper we show that, besides the usual calculus involving Kähler differentials, it is also possible to define conical calculus on schemes and perfectoid spaces; this can be…
Structured spaces: categories, sheaves, bundles, schemes and cohomology theories
Manuel Norman
In [1] we introduced the concept of structured space, which is a topological space that locally resembles some algebraic structures. In [2] we proceeded the study of these spaces,…