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First round-greek mathmatical olympiad 2009
problem 2-12 class
[ Olympiad Section » Algebra » Algebra Proposed & Own Problems ] |
Dimitris X |
0
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7
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Today, at 10:56 am
Dimitris X  |
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fours
[ Mathematics » Middle School Classroom Math (Ages 9-13) ] |
AndrewTom |
0
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2
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Today, at 10:54 am
AndrewTom |
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sum of more than 3 consecutive cubes
[ Mathematics » High School Pre-Olympiad (Ages 14+) ] |
AndrewTom |
0
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6
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Today, at 10:22 am
AndrewTom |
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N points in [0;1]
[ College Playground » Probabilities and Statistics ] |
alekk |
0
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7
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Today, at 10:17 am
alekk |
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100 divisors
[ Mathematics » High School Intermediate Topics (Ages 13+) ] |
AndrewTom |
0
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1
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Today, at 10:16 am
AndrewTom |
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smallest integers 2
[ Mathematics » High School Basics (Ages 12-16) ] |
AndrewTom |
0
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6
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Today, at 10:08 am
AndrewTom |
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smallest integers 1
[ Mathematics » High School Basics (Ages 12-16) ] |
AndrewTom |
0
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1
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Today, at 10:06 am
AndrewTom |
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a square
[ Mathematics » High School Basics (Ages 12-16) ] |
AndrewTom |
0
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1
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Today, at 10:04 am
AndrewTom |
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sums of squares
[ Mathematics » High School Intermediate Topics (Ages 13+) ] |
AndrewTom |
0
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5
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Today, at 10:02 am
AndrewTom |
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Inequality with logarithms
[ Olympiad Section » Inequalities » Inequalities Unsolved Problems ] |
Mateescu Constantin |
0
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13
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Today, at 9:45 am
Mateescu Constantin |
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First round-greek mathmatical olympiad 2009
problem 4-12 class
[ Olympiad Section » Geometry » Geometry Proposed & Own Problems ] |
Dimitris X |
0
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26
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Today, at 9:31 am
Dimitris X |
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analytic
[ College Playground » Complex Analysis » Unsolved and Proposed Problems ] |
santug |
0
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8
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Today, at 9:26 am
santug |
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triangular numbers 4
[ Mathematics » High School Basics (Ages 12-16) ] |
AndrewTom |
0
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3
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Today, at 9:24 am
AndrewTom |
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triangular numbers 3
[ Mathematics » High School Basics (Ages 12-16) ] |
AndrewTom |
0
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2
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Today, at 9:22 am
AndrewTom |
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triangular numbers 2
[ Mathematics » High School Basics (Ages 12-16) ] |
AndrewTom |
0
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0
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Today, at 9:20 am
AndrewTom |
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palindromes
[ Mathematics » High School Basics (Ages 12-16) ] |
AndrewTom |
0
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9
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Today, at 8:32 am
AndrewTom |
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Spectral representation of a compact operator
functional analysis
[ College Playground » Advanced fields » Unsolved and Proposed Problems ] |
BlueVelvet |
0
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14
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Today, at 8:22 am
BlueVelvet |
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3D rotation matrix
[ College Playground » Matrix - Linear Algebra » Matrix Algebra - Computations and Tutorials ] |
Clausius |
0
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17
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Today, at 8:00 am
Clausius |
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ineq with triangle
[ Olympiad Section » Inequalities » Inequalities Unsolved Problems ] |
mestav |
0
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23
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Today, at 7:39 am
mestav |
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13
[ Mathematics » High School Pre-Olympiad (Ages 14+) ] |
AndrewTom |
0
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15
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Today, at 7:31 am
AndrewTom |
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Analytic continuation of polylogarithm
[ College Playground » Complex Analysis » Computationals and Tutorials ] |
youriens |
0
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23
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Today, at 5:28 am
youriens |
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Who can prove this?
[ Olympiad Section » Geometry » Geometry Unsolved Problems ] |
Yafmuzz |
0
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32
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Today, at 5:19 am
Yafmuzz |
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series
[ College Playground » Calculus - Real Analysis » Unsolved and Proposed Problems ] |
aktyw19 |
0
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31
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Today, at 4:42 am
aktyw19 |
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triangular numbers
[ Mathematics » High School Pre-Olympiad (Ages 14+) ] |
AndrewTom |
0
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9
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Today, at 4:08 am
AndrewTom |
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Help
*************
[ Mathematics » High School Pre-Olympiad (Ages 14+) ] |
HFL |
0
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11
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Today, at 4:00 am
HFL |
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US phyics test eligibility
[ High School Contests & Programs » International Contests & Programs ] |
IDEALLY.PERFECT |
0
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8
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Today, at 3:30 am
IDEALLY.PERFECT |
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júp đỡ nha
[ National & Local Communities » Asia & Oceania » Vietnam » General Discussion ] |
cryax |
0
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4
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Today, at 3:04 am
cryax |
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Design Contest For All Designers
[ High School Contests & Programs » International Contests & Programs ] |
webriq |
0
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3
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Today, at 2:44 am
webriq |
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Very hard problem from HNMO 2005-2006
Topic HNMO 1986-2009
[ Olympiad Section » Inequalities » Inequalities Unsolved Problems ] |
Hesman |
0
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60
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Today, at 2:44 am
Hesman |
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cardinality of set, gcd
Amer. Math. Monthy, 1999
[ Olympiad Section » Combinatorics » Combinatorics Unsolved Problems ] |
kamil9876 |
0
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36
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Yesterday, at 11:20 pm
kamil9876 |
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3 Variables and 4 constants
created by kunny
[ Olympiad Section » Inequalities » Inequalities Proposed & Own Problems ] |
kunny |
0
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65
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Yesterday, at 8:57 pm
kunny |
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Prove that complex derivative exists
complex analysis
[ College Playground » Complex Analysis » Unsolved and Proposed Problems ] |
Chang Woo-JIn |
0
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24
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Yesterday, at 7:46 pm
Chang Woo-JIn |
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Knowledge Master
[ High School Contests & Programs » International Contests & Programs ] |
PowerOfPi |
0
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11
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Yesterday, at 7:09 pm
PowerOfPi |
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a strange inequality
very hard!
[ Olympiad Section » Inequalities » Inequalities Proposed & Own Problems ] |
hxy09 |
0
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62
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Yesterday, at 7:03 pm
hxy09 |
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Good luck everyone?
[ High School Contests & Programs » Other US Contests & Programs » Princeton Math Competition ] |
soltixnj |
0
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22
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Yesterday, at 6:57 pm
soltixnj |
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m|a^n-1
[ Olympiad Section » Number Theory » Number Theory Unsolved Problems ] |
KDS |
0
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59
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Yesterday, at 6:24 pm
KDS |
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Eilenberg-Maclane Spaces
[ College Playground » Topology ] |
Nukular |
0
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22
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Yesterday, at 5:54 pm
Nukular |
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Representation of SL_2
[ College Playground » Advanced fields » Unsolved and Proposed Problems ] |
smith09 |
0
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18
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Yesterday, at 2:18 pm
smith09 |
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Representation of GL_n
[ College Playground » Advanced fields » Unsolved and Proposed Problems ] |
smith09 |
0
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20
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Yesterday, at 2:13 pm
smith09 |
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 points H and K
[ Olympiad Section » Geometry » Geometry Unsolved Problems ] |
jrrbc |
0
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39
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Yesterday, at 12:45 pm
jrrbc |
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lipako+22
A.I. 3 variables
[ Olympiad Section » Inequalities » Inequalities Proposed & Own Problems ] |
lipako |
0
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44
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Yesterday, at 11:27 am
lipako |
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An interesting and nice inequality in a triangle.
Own (?!)
[ Olympiad Section » Geometry » Geometry Proposed & Own Problems ] |
Virgil Nicula |
0
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82
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Yesterday, at 10:41 am
Virgil Nicula |
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limit
[ College Playground » Calculus - Real Analysis » Unsolved and Proposed Problems ] |
yzymat |
0
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70
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Yesterday, at 10:36 am
yzymat |
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points on line r
[ Olympiad Section » Geometry » Geometry Unsolved Problems ] |
jrrbc |
0
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27
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Yesterday, at 8:47 am
jrrbc |
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enumeration of euler circuit with certain repeats
please, take a look.
[ Olympiad Section » Combinatorics » Combinatorics Unsolved Problems ] |
Storophanthus |
0
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41
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Yesterday, at 8:37 am
Storophanthus |
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magnetic field around a moving charge
[ Arts & Sciences » Introductory Physics ] |
krishkoushik |
0
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16
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Yesterday, at 8:30 am
krishkoushik |
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Mod2 and mod3 operations on 1 to 2 vertices
Is there a name for it?
[ Olympiad Section » Combinatorics » Combinatorics Unsolved Problems ] |
kweenie |
0
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27
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Yesterday, at 8:02 am
kweenie |
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about multivariate calculus
[ College Playground » Calculus - Real Analysis » Unsolved and Proposed Problems ] |
water2011 |
0
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28
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Yesterday, at 7:15 am
water2011 |
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Mathematical circle
[ Olympiad Section » High-School Contests » Download ] |
math12061992 |
0
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58
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Yesterday, at 2:32 am
math12061992 |
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Whitney intersection theorem (aka Whitney trick)
Is there a self-contined proof for the theorem?
[ College Playground » Topology ] |
eltonjohn |
0
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34
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Thu Nov 19, 2009 10:12 pm
eltonjohn |
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