Art of Problem Solving Forum

Try our innovative online adaptive learning system, Alcumus.
Over 1100 problems and 60+ video lessons. FREE!

The time now is Sun Nov 22, 2009 5:24 am
All times are UTC - 8

View posts since last visit
View unanswered posts

Moderators: High School Olympiad Moderators, Arne, blahblahblah, Cezar Lupu, darij grinberg, harazi, Megus, N.T.TUAN, orl, pbornsztein, pvthuan

Home » Olympiad Section » Inequalities » Inequalities Unsolved Problems

6414 Topics • Page 1 of 129 • 1, 2, 3, ..., 127, 128, 129 Next

Announcements			Author	Replies	Views	Last Post
		Vasc's new book [ Goto page: 1, 2, 3, 4 ]	Valentin Vornicu	77	30984	Mon Jun 08, 2009 6:43 am skalgar
		Don't help contest cheaters, please this concerns all of Olympiad Section, not just Inequalities! [ Goto page: 1, 2 ]	darij grinberg	39	13677	Sat Feb 28, 2009 2:50 am Agr_94_Math

Topics		Author	Replies	Views	Last Post
Stickies
	Problem Searching and Naming! [ Goto page: 1, 2 ]	harazi	30	18735	Fri May 18, 2007 3:26 pm Valentin Vornicu
Topics
	help	jinmadaxia	0	7	Today, at 4:16 am jinmadaxia
	help	jinmadaxia	0	13	Today, at 4:14 am jinmadaxia
	Turkey NMO 2008 Problem 3 Turkey NMO 2008 Problem 3	mashel	11	2047	Today, at 1:14 am mestav
	find min and max http://ddbdt.co.cc/forum/showthread.php?p=1256#post1256	VIMF	1	45	Yesterday, at 6:43 pm pleurestique
	Constant-sum, three-variable ineq.	UlyssesGrant	1	53	Yesterday, at 1:30 pm FelixD
	Very easy Refresher sum...	Rijul saini	10	141	Yesterday, at 1:10 pm FelixD
	Inequality with logarithms	Mateescu Constantin	0	51	Yesterday, at 9:45 am Mateescu Constantin
	ineq with triangle	mestav	0	39	Yesterday, at 7:39 am mestav
	a\sqrt(a^2+4b^2+4c^2)	dduclam	1	104	Yesterday, at 7:26 am dduclam
	Can you help me	Yafmuzz	3	73	Yesterday, at 5:52 am Dr Sonnhard Graubner
	find max	VIMF	7	162	Yesterday, at 5:27 am kuing
	a b c sequence feels like holder but not really	hendrata01	2	128	Yesterday, at 4:44 am spanferkel
	Just wonder seems easy	Tourish	10	212	Yesterday, at 4:34 am spanferkel
	Logarithms	Spribo	9	135	Yesterday, at 3:00 am Spribo
	Very hard problem from HNMO 2005-2006 Topic HNMO 1986-2009	Hesman	0	74	Yesterday, at 2:44 am Hesman
	Hard Inequality for you HNMO 2007-2008	Hesman	2	162	Yesterday, at 2:22 am Hesman
	Logarithm innequality All Russian Olympiad - Problem 11.5	April	3	711	Yesterday, at 2:10 am kuing
	Ineq 27 (nice) not using mix variable	math10	6	156	Fri Nov 20, 2009 11:56 am arqady
	trig question unknown [ Goto page: 1, 2 ]	sbos	20	3283	Fri Nov 20, 2009 8:34 am Ji Chen
	nice or hard	VIMF	1	82	Fri Nov 20, 2009 5:36 am kuing
	Hard inequality	mestav	3	89	Fri Nov 20, 2009 5:07 am kuing
	Muirhead	cnyd	2	133	Fri Nov 20, 2009 4:28 am mestav
	Nice inequality	lnnvnu	2	122	Fri Nov 20, 2009 4:23 am caubetoanhoc94
	inequality	yaa	4	101	Fri Nov 20, 2009 4:01 am kuing
	i can't prove	yaa	2	71	Fri Nov 20, 2009 3:27 am yaa
	I can't prove it	lnnvnu	2	90	Thu Nov 19, 2009 11:05 pm beginner01
	\sqrt{1 + a^2} + \sqrt{1 + b^2} + \sqrt{1 +c^2} < 2+a+b+c	lnnvnu	1	77	Thu Nov 19, 2009 10:16 pm kuing
	Generalization of an IMO ('74, I think) problem Brazilian Math Olympiad, Problem 6	cyshine	3	679	Thu Nov 19, 2009 12:32 pm cyshine
	Hard inequality problem	Rose_joker	7	401	Thu Nov 19, 2009 1:03 am kuing
	Inequality for real numbers	MathUniverse	6	226	Wed Nov 18, 2009 9:02 pm kuing
	Generalized Lipschitz Functions	man.maiko	0	66	Wed Nov 18, 2009 6:56 pm man.maiko
	cyclic	mestav	1	98	Wed Nov 18, 2009 6:24 pm hedeng123
	a^3 + b^3 = c^3 INMO 2009 Problem 6 [ Goto page: 1, 2 ]	skand	22	3075	Wed Nov 18, 2009 12:59 pm enndb0x
	seems easy question	tang zy	3	210	Wed Nov 18, 2009 3:35 am spanferkel
	a^2+b^2+c^2+abc=4 reposted from a topic in Pre-Olympiad	blahblahblah	7	675	Wed Nov 18, 2009 2:42 am Ji Chen
	Inequality	jackie-chan01	0	142	Mon Nov 16, 2009 7:25 pm jackie-chan01
	/prod(x^{n+3}-x{n}+3)	Γιώργος	2	108	Mon Nov 16, 2009 2:37 pm lefmast
	Help me please	cnyd	3	138	Mon Nov 16, 2009 1:21 pm Γιώργος
	It seems to be true, but I couldn't prove it...	AquilaXi	3	316	Mon Nov 16, 2009 7:14 am AquilaXi
	simple and symmetric	mestav	2	151	Sun Nov 15, 2009 12:11 pm spanferkel
	Find min hard,help	math10	0	86	Sat Nov 14, 2009 10:50 pm math10
	Inequality 5 variables	imedeen	2	156	Sat Nov 14, 2009 4:54 pm enndb0x
	Ineq 26	math10	0	84	Sat Nov 14, 2009 4:20 pm math10
	39th Austrian Mathematical Olympiad round1, problem1	valerie	6	663	Sat Nov 14, 2009 3:31 pm enndb0x
	Inequality in an acute triangle	dogcat	1	111	Sat Nov 14, 2009 7:57 am qwerty414
	Problem 6 of RMO 2007 (Regional Mathematical Olympiad-India) Elementry inequality	makar	3	403	Sat Nov 14, 2009 5:41 am Rijul saini
	Inequality from Mathvn	SomKim	2	228	Fri Nov 13, 2009 8:46 pm SomKim
	An interesting numeric inequality	man.maiko	6	258	Fri Nov 13, 2009 5:13 pm J.Y.Choi
	If x_1+x_2+x_3+x_4=0 ... ,find maximal value.	MathUniverse	5	257	Thu Nov 12, 2009 2:46 pm MathUniverse
Display topics from previous: Sort by:

6414 Topics • Page 1 of 129 • 1, 2, 3, ..., 127, 128, 129 Next

Home » Olympiad Section » Inequalities » Inequalities Unsolved Problems

Jump to:

Who is Online
	Users browsing this forum: 2 Registered, 0 Hidden and 1 Guest Registered Users: Martin N., Yahoo! Slurp
	Legend: [ Administrator ][ Moderator ][ User ][ Bot ]

	New posts			Announcement
	No new posts			Sticky
	Popular			Event
	Locked			Moved
	You have posted in this topic

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 vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
You cannot post calendar events in this forum