Re: [sage-support] Morphisms between free groups.

2022-02-04 Thread Dima Pasechnik
On Fri, 4 Feb 2022, 11:02 David Joyner, wrote: > On Fri, Feb 4, 2022 at 4:40 AM 'Michel VAN DEN BERGH' via sage-support > wrote: > > > > Dear all, > > > > I need to do something which I thought would be quite simple. I have > free groups > > F, G with generators x1,x2,x3,x4 and x,y respectively

[sage-support] Re: Eigen spaces of algebraic matrices broken ?

2022-02-04 Thread 'Alan Stafford' via sage-support
On Apple Mac the example above runs on the 9.4 kernel using either the 9.4 or 9.5 interface but not on the 9.5 kernel from either Interface. On Thursday, February 3, 2022 at 6:44:47 AM UTC Emmanuel Charpentier wrote: > Le mercredi 2 février 2022 à 22:15:00 UTC+1, Nils Bruin a écrit : > > On Mon

Re: [sage-support] Morphisms between free groups.

2022-02-04 Thread David Joyner
On Fri, Feb 4, 2022 at 4:40 AM 'Michel VAN DEN BERGH' via sage-support wrote: > > Dear all, > > I need to do something which I thought would be quite simple. I have free > groups > F, G with generators x1,x2,x3,x4 and x,y respectively and I need to compute > the image of an element under the hom

[sage-support] Morphisms between free groups.

2022-02-04 Thread 'Michel VAN DEN BERGH' via sage-support
Dear all, I need to do something which I thought would be quite simple. I have free groups F, G with generators x1,x2,x3,x4 and x,y respectively and I need to compute the image of an element under the homomorphism F-->G:x1->x, x2->y, x3->x, x4->y. I could not find anything in the manual about