Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Divide and Congruence II: From Decomposition of Modal Formulas to
  Preservation of Delay and Weak Bisimilarity   Earlier we presented a method to decompose modal formulas for processes with
the internal action $\tau$, and congruence formats for branching and
$\eta$-bisimilarity were derived on the basis of this decomposition method. The
idea is that a congruence format for a semantics must ensure that the formulas
in the modal characterisation of this semantics are always decomposed into
formulas that are again in this modal characterisation. In this follow-up paper
the decomposition method is enhanced to deal with modal characterisations that
contain a modality $\langle\epsilon\rangle\langle a\rangle\phi$, to derive
congruence formats for delay and weak bisimilarity.

16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph