Add support for pseudo-differential operators

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Add support for pseudo-differential operators #10956

Open tkluck opened 13 years ago

tkluck commented 13 years ago

Here's my first take at adding support for pseudo differential operators.

The algebra of these operators are a convenient framework for the description of the Korteweg-de Vries (KdV) hierarchy and the Kadomtsev-Petviashvili (KP)hierarchy (this has to do with mathematical physics / integrable systems).

Depends on #10272.

Note: if you test this, or if you want to run sage -t -long, then you should probably also apply no_maxima.patch (which is a terrible hack). See the warning in the file's docstring.

Component: symbolics

Keywords: pseudo-differential operators, integrable systems, mathematical physics

Author: Timo Kluck

Branch/Commit: public/ticket/10956 @ 0fcd910

Issue created by migration from https://trac.sagemath.org/ticket/10956

tkluck commented 13 years ago

Description changed:

--- 
+++ 
@@ -2,4 +2,6 @@

 The algebra of these operators are a convenient framework for the description of the Korteweg-de Vries (KdV) hierarchy and the Kadomtsev-Petviashvili (KP)hierarchy (this has to do with mathematical physics / integrable systems).

+Depends on #10272.

+

tkluck commented 13 years ago

comment:1

Attachment: trac_10956_add_pseudo_differential_operators.patch.gz

tkluck commented 13 years ago

Description changed:

--- 
+++ 
@@ -4,4 +4,5 @@

 Depends on #10272.

+Note: if you test this, or if you want to run sage -t -long, then you should probably also apply no_maxima.patch (which is a terrible hack). See the warning in the file's docstring.

tkluck commented 13 years ago

comment:2

Attachment: no_maxima.patch.gz