From 0072f725c0ed694734eb9fadde198694f16d0bbc Mon Sep 17 00:00:00 2001
From: dpumpe <dpumpe@mpa-garching.mpg.de>
Date: Sun, 14 May 2017 20:11:09 +0200
Subject: [PATCH] update Docstring for HarmonicPropagatorOperator

---
 .../harmonic_propagator_operator.py                  | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/nifty/operators/propagator_operator/harmonic_propagator_operator.py b/nifty/operators/propagator_operator/harmonic_propagator_operator.py
index 3ad6501fe..908e2e372 100644
--- a/nifty/operators/propagator_operator/harmonic_propagator_operator.py
+++ b/nifty/operators/propagator_operator/harmonic_propagator_operator.py
@@ -46,9 +46,21 @@ class HarmonicPropagatorOperator(InvertibleOperatorMixin, EndomorphicOperator):
             (default:ConjugateGradient)
         preconditioner : Field
             numerical preconditioner to speed up convergence
+        default_spaces : tuple of ints *optional*
+            Defines on which space(s) of a given field the Operator acts by
+            default (default: None)
 
     Attributes
     ----------
+    domain : tuple of DomainObjects, i.e. Spaces and FieldTypes
+        The domain on which the Operator's input Field lives.
+    target : tuple of DomainObjects, i.e. Spaces and FieldTypes
+        The domain in which the outcome of the operator lives. As the Operator
+        is endomorphic this is the same as its domain.
+    unitary : boolean
+        Indicates whether the Operator is unitary or not.
+    self_adjoint : boolean
+        Indicates whether the operator is self_adjoint or not.
 
     Raises
     ------
-- 
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