Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strongly constrained stochastic processes: the multi-ends Brownian
  bridge   In a recent article, Krapivsky and Redner (J. Stat. Mech. 093208 (2018))
established that the distribution of the first hitting times for a diffusing
particle subject to hitting an absorber is independent of the direction of the
external flow field. In the present paper, we build upon this observation and
investigate when the conditioning on the diffusion leads to a process that is
totally independent of the flow field. For this purpose, we adopt the Langevin
approach, or more formally the theory of conditioned stochastic differential
equations. This technique allows us to derive a large variety of stochastic
processes: in particular, we introduce a new kind of Brownian bridge ending at
two different final points and calculate its fundamental probabilities. This
method is also very well suited for generating statistically independent paths.
Numerical simulations illustrate our findings.

6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga