Added hermitian_decomposition to LMSpace

nifty/spaces/lm_space/lm_space.py

@@ -111,6 +111,13 @@ class LMSpace(Space):
         super(LMSpace, self).__init__(dtype)
         self._lmax = self._parse_lmax(lmax)
 
+    def hermitian_decomposition(self, x, axes=None):
+        hermitian_part = x.copy_empty()
+        anti_hermitian_part = x.copy_empty()
+        hermitian_part[:] = x.real
+        anti_hermitian_part[:] = x.imag
+        return (hermitian_part, anti_hermitian_part)
+
         # ---Mandatory properties and methods---
 
     @property