Algebra

Moderators: Bogdan Posa, Beniamin Bogosel, Marius Dragoi

New Topic

117 topics

Topics

Replies

Views

Last post

Conditie pentru comutativitatea unui inel 2

Last post by opincariumihai « Wed May 12, 2010 4:47 pm

by opincariumihai » Wed May 12, 2010 4:47 pm

0 Replies

408 Views

Last post by opincariumihai
Wed May 12, 2010 4:47 pm
Centrul unui inel

Last post by Beniamin Bogosel « Fri Apr 23, 2010 10:50 pm
Replies: 2
by Theodor Munteanu » Sun Jan 17, 2010 12:55 pm

2 Replies

605 Views

Last post by Beniamin Bogosel
Fri Apr 23, 2010 10:50 pm
Numar de subgrupuri

Last post by Laurentiu Tucaa « Tue Mar 30, 2010 9:51 am
Replies: 1
by Theodor Munteanu » Mon Mar 29, 2010 11:05 pm

1 Replies

344 Views

Last post by Laurentiu Tucaa
Tue Mar 30, 2010 9:51 am
Conditie pentru comutativitatea unui inel

Last post by opincariumihai « Mon Mar 29, 2010 12:02 pm
Replies: 2
by opincariumihai » Sun Mar 28, 2010 9:16 pm

2 Replies

441 Views

Last post by opincariumihai
Mon Mar 29, 2010 12:02 pm
integrale iterate si combinatorica

Last post by Dragos Fratila « Thu Mar 25, 2010 11:06 am

by Dragos Fratila » Thu Mar 25, 2010 11:06 am

0 Replies

297 Views

Last post by Dragos Fratila
Thu Mar 25, 2010 11:06 am
Inel cu o proprietate este corp

Last post by Laurentiu Tucaa « Thu Mar 18, 2010 6:57 pm
Replies: 4
by Laurentiu Tucaa » Tue Mar 09, 2010 8:31 pm

4 Replies

584 Views

Last post by Laurentiu Tucaa
Thu Mar 18, 2010 6:57 pm
Grup neabelian-problema 26255-GMB 1/2010

Last post by Theodor Munteanu « Mon Mar 15, 2010 7:33 am
Replies: 17
by Tudor Micu » Sun Mar 07, 2010 3:07 pm
1

2
17 Replies

2046 Views

Last post by Theodor Munteanu
Mon Mar 15, 2010 7:33 am
Produs direct de grupuri

Last post by Laurentiu Tucaa « Thu Mar 11, 2010 9:59 pm

by Laurentiu Tucaa » Thu Mar 11, 2010 9:59 pm

0 Replies

281 Views

Last post by Laurentiu Tucaa
Thu Mar 11, 2010 9:59 pm
Numarul elementelor unui grup

Last post by Laurentiu Tucaa « Tue Mar 09, 2010 8:28 pm

by Laurentiu Tucaa » Tue Mar 09, 2010 8:28 pm

0 Replies

254 Views

Last post by Laurentiu Tucaa
Tue Mar 09, 2010 8:28 pm
Radacini de polinoame,afixe de varfuri de poligon regulat

Last post by Theodor Munteanu « Mon Mar 08, 2010 11:59 am
Replies: 1
by Theodor Munteanu » Wed Feb 17, 2010 5:50 pm

1 Replies

416 Views

Last post by Theodor Munteanu
Mon Mar 08, 2010 11:59 am
Problema destul de grea

Last post by cipriancx « Sat Mar 06, 2010 6:07 pm
Replies: 3
by Theodor Munteanu » Tue Jan 26, 2010 4:25 pm

3 Replies

795 Views

Last post by cipriancx
Sat Mar 06, 2010 6:07 pm
Norma este surjectiva pentru corpuri finite

Last post by Dragos Fratila « Sun Feb 28, 2010 5:01 pm

by Dragos Fratila » Sun Feb 28, 2010 5:01 pm

0 Replies

278 Views

Last post by Dragos Fratila
Sun Feb 28, 2010 5:01 pm
Numar de polinoame

Last post by Laurentiu Tucaa « Sun Feb 07, 2010 9:17 pm
Replies: 3
by Theodor Munteanu » Fri Feb 05, 2010 6:37 pm

3 Replies

438 Views

Last post by Laurentiu Tucaa
Sun Feb 07, 2010 9:17 pm
coeficient al unui polinom omogen

Last post by Dragos Fratila « Sun Feb 07, 2010 6:38 pm

by Dragos Fratila » Sun Feb 07, 2010 6:38 pm

0 Replies

275 Views

Last post by Dragos Fratila
Sun Feb 07, 2010 6:38 pm
Concursul "Unirea" 2010, pb 2

Last post by Radu Titiu « Fri Feb 05, 2010 9:59 pm
Replies: 3
by Laurentiu Tucaa » Sat Jan 30, 2010 10:34 pm

3 Replies

530 Views

Last post by Radu Titiu
Fri Feb 05, 2010 9:59 pm
Cardinale de multimi si ordinul unui element

Last post by Theodor Munteanu « Tue Jan 26, 2010 4:22 pm
Replies: 6
by Theodor Munteanu » Sun Jan 17, 2010 12:49 pm

6 Replies

799 Views

Last post by Theodor Munteanu
Tue Jan 26, 2010 4:22 pm
O problema ce se poate rezolva "informatic"

Last post by spx2 « Sun Jan 10, 2010 4:27 pm
Replies: 2
by Theodor Munteanu » Fri Dec 18, 2009 2:29 pm

2 Replies

507 Views

Last post by spx2
Sun Jan 10, 2010 4:27 pm
Concursul "Nicolae Coculescu" 2009, problema 3

Last post by Laurentiu Tucaa « Sat Jan 09, 2010 8:53 pm
Replies: 2
by Laurentiu Tucaa » Tue Dec 01, 2009 7:17 pm

2 Replies

700 Views

Last post by Laurentiu Tucaa
Sat Jan 09, 2010 8:53 pm
Concursul "Nicolae Coculescu" 2009, problema 1

Last post by Laurentiu Tucaa « Sat Nov 28, 2009 8:46 am

by Laurentiu Tucaa » Sat Nov 28, 2009 8:46 am

0 Replies

345 Views

Last post by Laurentiu Tucaa
Sat Nov 28, 2009 8:46 am
Geometrie analitica in Z_p x Z_p

Last post by Francisc « Sun Nov 15, 2009 11:41 pm

by Francisc » Sun Nov 15, 2009 11:41 pm

0 Replies

455 Views

Last post by Francisc
Sun Nov 15, 2009 11:41 pm
Cate paralelograme exista in Z_p x Z_p ?

Last post by Francisc « Wed Nov 11, 2009 8:47 pm

by Francisc » Wed Nov 11, 2009 8:47 pm

0 Replies

352 Views

Last post by Francisc
Wed Nov 11, 2009 8:47 pm
Grup abelian

Last post by opincariumihai « Fri Sep 25, 2009 3:33 pm

by opincariumihai » Fri Sep 25, 2009 3:33 pm

0 Replies

515 Views

Last post by opincariumihai
Fri Sep 25, 2009 3:33 pm
Grup abelian

Last post by Laurentiu Tucaa « Mon Sep 21, 2009 7:02 pm
Replies: 1
by Marius Mainea » Tue Sep 01, 2009 10:32 pm

1 Replies

542 Views

Last post by Laurentiu Tucaa
Mon Sep 21, 2009 7:02 pm
Grupuri ciclice/abeliene

Last post by Radu Titiu « Sun Sep 20, 2009 4:56 pm
Replies: 1
by Ciprian Oprisa » Sat Sep 19, 2009 9:10 pm

1 Replies

794 Views

Last post by Radu Titiu
Sun Sep 20, 2009 4:56 pm
Grup divizibil nu are subgrupuri proprii de indice finit

Last post by Radu Titiu « Fri Sep 18, 2009 11:58 am
Replies: 1
by bae » Sun Dec 16, 2007 12:29 am

1 Replies

836 Views

Last post by Radu Titiu
Fri Sep 18, 2009 11:58 am
Concursul GM "Nicolae Teodorescu" 2009, problema 4

Last post by Marius Mainea « Tue Aug 18, 2009 7:46 pm
Replies: 1
by Laurentiu Tucaa » Tue Aug 18, 2009 7:42 pm

1 Replies

484 Views

Last post by Marius Mainea
Tue Aug 18, 2009 7:46 pm
Subcorp al lui R

Last post by opincariumihai « Wed Aug 05, 2009 10:05 am

by opincariumihai » Wed Aug 05, 2009 10:05 am

0 Replies

395 Views

Last post by opincariumihai
Wed Aug 05, 2009 10:05 am
Reuniune de inele proprii

Last post by Bogdan Cebere « Tue Aug 04, 2009 6:50 pm
Replies: 1
by opincariumihai » Mon Aug 03, 2009 10:35 pm

1 Replies

435 Views

Last post by Bogdan Cebere
Tue Aug 04, 2009 6:50 pm
ONM problema 3

Last post by opincariumihai « Tue Aug 04, 2009 1:55 pm
Replies: 1
by bogdanl_yex » Mon Apr 13, 2009 7:11 pm

1 Replies

706 Views

Last post by opincariumihai
Tue Aug 04, 2009 1:55 pm
Generalizarea unei pb a lui L. Panaitopol

Last post by opincariumihai « Fri Jul 10, 2009 10:36 pm
Replies: 2
by opincariumihai » Fri Jul 10, 2009 3:58 pm

2 Replies

585 Views

Last post by opincariumihai
Fri Jul 10, 2009 10:36 pm
Numarul automorfismelor este par

Last post by Marius Mainea « Sun Jul 05, 2009 10:55 am
Replies: 1
by opincariumihai » Sun May 24, 2009 1:24 pm

1 Replies

584 Views

Last post by Marius Mainea
Sun Jul 05, 2009 10:55 am
A inel finit cu ordinul liber de patrate

Last post by Radu Titiu « Tue Jun 23, 2009 9:58 pm
Replies: 3
by Radu Titiu » Tue Jun 23, 2009 10:43 am

3 Replies

772 Views

Last post by Radu Titiu
Tue Jun 23, 2009 9:58 pm
Inel unitar fara elemente nilpotente nenule

Last post by opincariumihai « Mon Jun 22, 2009 11:37 am
Replies: 1
by opincariumihai » Mon May 18, 2009 10:16 pm

1 Replies

618 Views

Last post by opincariumihai
Mon Jun 22, 2009 11:37 am
Inele in care produsul tuturor elementelor nenule este zero

Last post by aleph « Tue May 26, 2009 10:45 am
Replies: 4
by bae » Sun Oct 28, 2007 6:38 pm

4 Replies

1160 Views

Last post by aleph
Tue May 26, 2009 10:45 am
Calcule intr-un inel 2

Last post by opincariumihai « Mon May 25, 2009 9:30 pm
Replies: 2
by Beniamin Bogosel » Sat Jun 14, 2008 2:12 pm

2 Replies

1095 Views

Last post by opincariumihai
Mon May 25, 2009 9:30 pm
Grupuri de ordin par

Last post by opincariumihai « Sun May 24, 2009 11:11 am
Replies: 1
by bae » Fri Dec 14, 2007 1:14 am

1 Replies

1030 Views

Last post by opincariumihai
Sun May 24, 2009 11:11 am
Una dintre problemele lui L. Panaitopol

Last post by opincariumihai « Sat May 23, 2009 9:27 pm

by opincariumihai » Sat May 23, 2009 9:27 pm

0 Replies

485 Views

Last post by opincariumihai
Sat May 23, 2009 9:27 pm
O "stranie" problema de algebra, ONM 2000

Last post by opincariumihai « Sat May 23, 2009 6:26 pm
Replies: 4
by bae » Tue Jan 29, 2008 2:16 pm

4 Replies

1597 Views

Last post by opincariumihai
Sat May 23, 2009 6:26 pm
Traian Lalescu pentru Studenti 2009, Problema 4

Last post by Beniamin Bogosel « Sat May 16, 2009 10:57 pm

by Beniamin Bogosel » Sat May 16, 2009 10:57 pm

0 Replies

664 Views

Last post by Beniamin Bogosel
Sat May 16, 2009 10:57 pm
Numar prim care divide o valoare a indicatorului lui Euler

Last post by c.adryan « Thu Apr 23, 2009 5:35 pm
Replies: 2
by Marius Mainea » Fri Feb 06, 2009 11:34 pm

2 Replies

833 Views

Last post by c.adryan
Thu Apr 23, 2009 5:35 pm
Demonstrati ca grupul nu este ciclic

Last post by Bogdan Cebere « Thu Apr 23, 2009 3:16 pm

by Bogdan Cebere » Thu Apr 23, 2009 3:16 pm

0 Replies

513 Views

Last post by Bogdan Cebere
Thu Apr 23, 2009 3:16 pm
H subgrup al centrului grupului

Last post by Bogdan Cebere « Sun Apr 19, 2009 10:29 am
Replies: 1
by Radu Titiu » Wed Mar 04, 2009 9:48 pm

1 Replies

821 Views

Last post by Bogdan Cebere
Sun Apr 19, 2009 10:29 am
ONM problema 2

Last post by bogdanl_yex « Mon Apr 13, 2009 7:07 pm

by bogdanl_yex » Mon Apr 13, 2009 7:07 pm

0 Replies

523 Views

Last post by bogdanl_yex
Mon Apr 13, 2009 7:07 pm
Inel cu 2p elemente

Last post by Radu Titiu « Mon Apr 06, 2009 2:36 pm
Replies: 3
by c.adryan » Sat Apr 04, 2009 3:29 pm

3 Replies

935 Views

Last post by Radu Titiu
Mon Apr 06, 2009 2:36 pm
Corp finit de caracteristica 3

Last post by Radu Titiu « Tue Mar 31, 2009 3:22 pm
Replies: 2
by bae » Sun Oct 28, 2007 6:57 pm

2 Replies

1329 Views

Last post by Radu Titiu
Tue Mar 31, 2009 3:22 pm
Doua polinoame

Last post by bae « Thu Mar 26, 2009 12:15 am
Replies: 1
by Ntz_Bogdan » Wed Mar 25, 2009 5:05 pm

1 Replies

618 Views

Last post by bae
Thu Mar 26, 2009 12:15 am
Grup abelian?

Last post by bogdanl_yex « Fri Mar 20, 2009 12:18 am

by bogdanl_yex » Fri Mar 20, 2009 12:18 am

0 Replies

562 Views

Last post by bogdanl_yex
Fri Mar 20, 2009 12:18 am
Polinom ireductibil

Last post by Beniamin Bogosel « Wed Mar 18, 2009 1:24 am
Replies: 1
by c.adryan » Tue Mar 17, 2009 10:31 pm

1 Replies

685 Views

Last post by Beniamin Bogosel
Wed Mar 18, 2009 1:24 am
Nr. subgrupurilor

Last post by mr bean « Mon Mar 16, 2009 9:16 pm

by mr bean » Mon Mar 16, 2009 9:16 pm

0 Replies

555 Views

Last post by mr bean
Mon Mar 16, 2009 9:16 pm
Inel cu 3n elemente

Last post by Beniamin Bogosel « Mon Mar 16, 2009 8:38 pm
Replies: 1
by Ntz_Bogdan » Mon Mar 16, 2009 8:16 pm

1 Replies

557 Views

Last post by Beniamin Bogosel
Mon Mar 16, 2009 8:38 pm

New Topic

117 topics

Return to Board Index

Forum permissions

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum