Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A fresh approach to classical Eisenstein series and the newer
  Hilbert-Eisenstein series   This paper is concerned with new results for the circular Eisenstein series
$\varepsilon_r(z)$ as well as with a novel approach to Hilbert-Eisenstein
series $\mathfrak h_r(z)$, introduced by Michael Hauss in 1995. The latter turn
out to be the product of the hyperbolic sinh--function with an explicit closed
form linear combination of digamma functions. The results, which include
differentiability properties and integral representations, are established by
independent and different argumentations. Highlights are new results on the
Butzer--Flocke--Hauss Omega function, one basis for the study of
Hilbert-Eisenstein series, which have been the subject of several recent
papers.

7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom