Algebra

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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

131 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

367 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

155 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

231 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

138 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

288 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

990 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

162 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

132 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

250 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

529 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

151 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

251 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

142 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

314 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

489 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

317 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

531 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

234 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

268 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

201 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

397 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

414 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

625 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

707 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

340 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

291 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

284 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

548 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

396 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

437 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

555 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

474 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

923 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

942 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

893 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

364 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

1353 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

553 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

652 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

405 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

683 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

413 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

742 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

1148 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

489 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

457 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

546 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

455 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

435 Views

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

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