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MathGroup Archive 2007

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Re: Re: need MathLie mathematica package

  • To: mathgroup at smc.vnet.net
  • Subject: [mg73983] Re: [mg73933] Re: need MathLie mathematica package
  • From: Andrzej Kozlowski <akoz at mimuw.edu.pl>
  • Date: Sat, 3 Mar 2007 23:58:43 -0500 (EST)
  • References: <es92kk$40c$1@smc.vnet.net> <45E83C90.2030304@gmail.com> <200703030609.BAA03255@smc.vnet.net> <98FFC8F4-87AB-4DB8-A78F-079928014DCB@mimuw.edu.pl> <22d35c5a0703030312s1f66c214i9a27a150827b0c8c@mail.gmail.com>

Jean-Marc

I seems to me that as the package is encoded there is no problem with  
making it available for public download. In fact I think Springer,  
the publisher of this book, often makes software included on CDs  
attached to books that it publishes  publicly available on its web  
site (or at least it use to do so).  Besides, as I wrote in my post,  
the package is not really useable without the book itself. As Nabeel  
has made clear to me, he has actually borrowed the book form a  
library but the library staff could not find the attached CD. In this  
situation I do not think there is any copyright issue involved.

Regards

Andrzej



On 3 Mar 2007, at 12:12, Jean-Marc Gulliet wrote:

> On 3/3/07, Andrzej Kozlowski <akoz at mimuw.edu.pl> wrote:
>> This package is a part of Gerd Baumann's book "Symmetry Analysis of
>> Differential Equations with Mathematica". Anyone who buys the book
>> you will get the package for free together with complete
>> documentation. Since I assume that the author is still interested in
>> selling his book, I feel it is probably inapropriate to write much
>> more.
>
> Andrzej,
>
> I understand your concerns about copyright issue and intellectual  
> property.
> I would like to clarify some points, however.
>
> When I replied to the OP, I was not aware that a book containing the
> package have been published. Indeed, I was amused by the OP's request,
> since when I tried the obvious, a very simple search with Google using
> "MathLie" as keyword, Google returned around 470 hits, and the first
> link returned was the incriminated one!
>
> "Index of /pub/Mathematica/MathLie ... LieBaecklundSymmetry.m
> 11-May-1999 14:17 47k [ ] LieIntegrate.m 11-May-1999 14:17 29k [ ]
> MathLie.m 11-May-1999 14:17 ...
> ftp.physics.uwa.edu.au/pub/Mathematica/MathLie/ - 3k - Cached -  
> Similar pages"
> (First hit out of 470 returned by Google with the keyword "MathLie",
> Saturday, March 3, 2007, 10 AM (GMT))
>
> This link points to a public directory hosted on an official
> departmental web server of a reputed university. (We are not talking
> about a student's personal web page nor a peer-to-peer file sever
> illegally holding copyrighted material.)
>
> Moreover, at first glance, there is no files that seem to contain any
> copyright notice or restriction of some sort (contrary to what it is
> customary to do on a file server when the material is copyrighted).
>
> Also, these files have been hosted on this public directory since  
> mid-1999.
>
> Now, it is still possible, though very unlikely, that the physics
> department of the University of Western Australia illegally hosts some
> copyrighted material on its public server since 1999. However, this is
> not the first thing that came up to my mind when I replied to the OP.
>
> Regards,
> Jean-Marc
>
>> Besides, I don't think the package is useable wihtout the book.
>> An online version of the whole book is included wiht the paper one,
>> but obviously it would not be right or legal to distribute it without
>> the author's permission.
>> If I rember correctly, the package included with the book I have is
>> incompatible with Mathematica 5, although if you read and understnd
>> the book you won't really need the package, since all the code is
>> included in th ebook and as far as I can remember there is nothing in
>> it that requires particularly advanced programing skills.
>>
>> Andrzej Kozlowski
>>
>>
>> On 3 Mar 2007, at 07:09, Jean-Marc Gulliet wrote:
>>
>> > On 3/2/07, Nabeel Butt <nabeel.butt at gmail.com> wrote:
>> >> Dear Mr Jean,
>> >>               Yes this is the pakage.But when i open the package
>> >> you mention
>> >> it gives some cryptic language.It has some strange fonts not
>> >> comprehensible
>> >> by me.Please check it out and tell me wether there is a remedy  
>> to it.
>> >>              regards,
>> >>              Nabeel
>> >>
>> >>
>> >> On 3/2/07, Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com> wrote:
>> >>> Nabeel Butt wrote:
>> >>>> Dear Users,
>> >>>>              I need MathLie package for calculating the  
>> symmetry of
>> >>>> differential equations.Please could you email me the download or
>> >>>> suggest
>> >>>> where to download it.
>> >>>>               Thanks in advance.
>> >>>>              regards,
>> >>>>               Nabeel
>> >>>>
>> >>>
>> >>> Is this what you are looking for?
>> >>>
>> >>> http://ftp.physics.uwa.edu.au/pub/Mathematica/MathLie/
>> >>>
>> >
>> > I have checked the .m file. It appears that they are encoded.  
>> They are
>> > still plain ASCII but not meant to be read by a human being.  
>> (That is
>> > one can execute them but cannot see the code.) Therefore, the only
>> > thing you can do is saving the .m files within an appropriate
>> > directory on your own system and use them. I believe that the  
>> regular
>> > notebooks must contain some explanations about how to use the
>> > packages. (Note that I am not familiar with this package: I have  
>> just
>> > done a search on Google with the package name as keyword.)
>> >
>> > HTH,
>> > Jean-Marc
>> >
>>
>>



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