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by satya123999
23 Feb 2016, 16:55
Forum: Helpdesk
Topic: Tropical Basis Computation
Replies: 5
Views: 6611

Re: Tropical Basis Computation

Thank you very much.

So, with polymake, I can compute the tropical prevariety using the command "set_theoretic_intersection" and for variety I need gfan in addition. I will try it

Best Regards,
Satya
by satya123999
23 Feb 2016, 16:17
Forum: Helpdesk
Topic: Tropical Basis Computation
Replies: 5
Views: 6611

Re: Tropical Basis Computation

Hello, Thank you for your quick reply. Do you really need the tropical basis or do you just need the tropicalization? It is also possible, that the computation may be easier in the particular cases you want to compute. In many cases, a universal Gröbner basis can serve as a tropical basis. By tropic...
by satya123999
23 Feb 2016, 15:20
Forum: Helpdesk
Topic: Tropical Basis Computation
Replies: 5
Views: 6611

Tropical Basis Computation

Dear all, I was wondering if there exists any tutorial for computing the tropical basis in polymake ? For example: I have two tropical hypersurfaces defined by: min(a1,a2,4*a1+1); min(a1,a2,2*a2+1); and I am interested to compute the tropical basis (whose intersections define the tropical variety) B...
by satya123999
30 Mar 2015, 13:07
Forum: Helpdesk
Topic: hasse_diagram for selected vertices
Replies: 6
Views: 7008

Re: hasse_diagram for selected vertices

Thank you very much for the function. I will try it and get back if I face any problems

I cannot access http://trac.polymake.org/changeset/ade6 ... 3e8483c347 (the polymake forum user credentials are not accepted by it)
by satya123999
21 Mar 2015, 17:19
Forum: Helpdesk
Topic: hasse_diagram for selected vertices
Replies: 6
Views: 7008

Re: hasse_diagram for selected vertices

Thank you very much for the reply. If I understand correctly, to realise this in polymake, I think I have to create a new Polytope with the vertices (with POINTS property) obtained from the intersection and compute its dimension (this should be the dimension of affine hull & also the dimension o...
by satya123999
17 Mar 2015, 14:48
Forum: Helpdesk
Topic: hasse_diagram for selected vertices
Replies: 6
Views: 7008

hasse_diagram for selected vertices

Dear all, I followed your tutorial: http://polymake.org/doku.php/tutorial/face_lattice_tutorial to compute a part of face lattice (e.g. 1 -dimensional faces). Is it possible to use this function to compute a part of face lattice with few selected vertices (which is pre-defined) ? For example, I am i...
by satya123999
02 Feb 2015, 09:47
Forum: Helpdesk
Topic: equal_polyhedra
Replies: 4
Views: 5284

Re: equal_polyhedra

Thank you , it works :)
by satya123999
30 Jan 2015, 13:04
Forum: Helpdesk
Topic: equal_polyhedra
Replies: 4
Views: 5284

Re: equal_polyhedra

Dear Benjamin,

I am curretnly having polymake version 2.12, So, untill I update to the 2.14 polymake next month, Can you please suggest changes in 2.12 version ?

Regards,
Satya
by satya123999
28 Jan 2015, 22:19
Forum: Helpdesk
Topic: equal_polyhedra
Replies: 4
Views: 5284

equal_polyhedra

Dear polymake team, I import the following set of inequalities (in lp format) Maximize Subject To c0: - a1 = 0 c1: a1 - a2 = 0 c2: a1 - a3 = 0 Bounds a1 free a2 free a3 free End then when I execute the following commands, it doesn't return 1 ? $f = convert_to<Rational>lp2poly('file.lp'); print equal...
by satya123999
29 Dec 2014, 19:51
Forum: Helpdesk
Topic: Polytope Containment
Replies: 13
Views: 12275

Re: Polytope Containment

Hi Benjamin,

Thank you very much :) now the commands work fine. I will also upgrade the polymake version

Best,
Satya

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