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This badge has been awarded 1073 times. Recently awarded to:
apr 29 at 11:24
Show that f is a polynomial — DinkyDoe 455111
apr 29 at 10:18
Triangulation of a manifold adapted to a submanifold — Ulysse Mizrahi 1364
apr 28 at 22:41
Confidence interval of a random variable with infinite mean. (St. Petersburg paradox) — Xoff 1,249111
apr 28 at 18:41
Let $n$ be an integer $\geq 2$ and let $M_n(\Bbb R)$ denote… — user33640 1,109216
apr 28 at 17:51
To define two random variables that satisfy a condition — user11775 946
apr 28 at 13:55
$f: \mathbb{R} \to \mathbb{R}$ satisfies $(x-2)f(x)-(x+1)f(x-1) = 3$. Evaluate $f(2013)$, given that $f(2)=5$ — Veritas 2196
apr 28 at 12:50
Problem of Scottish Book — rgl4 676
apr 27 at 19:06
Differential calculus - Reviewing and drawing graph — Dugi 685
apr 27 at 10:06
Interchanging closed operators and integrals — UrošSlovenija 29610
apr 26 at 4:09
Derivative of complex-valued function and partial derivatives. — genepeer 43112
apr 26 at 1:34
Equivalence of two definitions of Whitehead Torsion — user39598 914
apr 25 at 21:29
Is this incidence variety in $\mathbb{P}^2 \times \mathbb{P}^2$ isomorphic to a variety in $\mathbb{P}^1 \times \mathbb{P}^1$? — Ricardo Buring 1449
apr 25 at 2:19
Topology: The Board Game — Brian Rushton 1,3511625
apr 24 at 23:54
Smooth Structure of the Torus — Metin Y. 653214
apr 24 at 22:54
Constant Rank theorem for domain with nonempty boundary — Bill 986
apr 24 at 16:13
If we have $m$ indistinguishable objects how many ways is it possible to put them in $n$ indistinguihable positions? — agustin 422112
apr 23 at 18:31
Combinatorial Proof for a Recursive Sequence — user73041 1208
apr 22 at 15:09
Scalar product with ON-base $e_1,e_2,e_3$ — user1838781 898
apr 21 at 21:33
Subspaces stabilized by representations of $\mathrm O(9)$ — JJR 1,06817
apr 21 at 20:23
Evaluation of a continued fraction — GEdgar 18.9k11853
apr 21 at 19:38
Solving the general quadratic congruence mod $2^k$ — vadim123 7,591740
apr 21 at 5:46
Enrichment of a Semi-additive Category Over Abelian Monoids — Brian Fitzpatrick 34114
apr 20 at 21:01
Physics - Problem — user21119 549
apr 19 at 22:52
Homorphism Being Trival when Group Is Abelian — DramaFreak 1317
apr 19 at 21:07
efficiency of verifier of Boolean — HoCheol SHIN 10117
apr 19 at 11:21
The Dinitz Problem - proof — Dávid Kaya 35410
apr 19 at 0:01
How to decompose a representation into direct sum of cyclic representation? — owen 9115
apr 18 at 12:15
Boundary gradient blowup of a parabolic PDE with an unbounded coefficient — zab 22510
apr 18 at 10:20
How to deduce the results of response time by this trajectory approach? — Rubby 86
apr 18 at 9:10
Stochastic predator-prey — HCAI 1108
apr 18 at 4:10
Dimensions: $\bigcap^{k}_{i=1}V_i \neq \{0\}$ — Trancot 41015
apr 18 at 1:55
Eisenstein and Quadratic Reciprocity as a consequence of Artin Reciprocity, and Composition of Reciprocity Laws — Ash GX 13010
apr 17 at 7:44
Proving that $\sum_{k=n}^{2n-2} \frac{|\sin k\ |}{k} < 0.7\ln 2$ for $n\ge2$ — math110 2,072326
apr 17 at 2:39
Prove that $f(x)$ be a constant — pxchg1200 44412
apr 16 at 17:13
special matrix in terms of its covariance matrix — Bel 769
apr 16 at 9:41
Existence of a special set of q+2 points in the finite affine plane over $\mathbb F_q$ — Aline Parreau 2517
apr 16 at 8:21
proving Jensen's formula — Mula Ko Saag 38812
apr 15 at 14:50
Sets $f_n\in A_f$ where $f_{n+1}=f_n \circ S \circ f^{\circ (-1)}_n$ and operator $\alpha(f_n)=f_{n+1}$ — MphLee 643321
apr 15 at 14:20
Cross product with orthonormal basis — Gyt 10011
apr 15 at 0:14
How can I solve the Poisson PDE efficiently and fast in cylindrical coordinates? — Ahmad 785
apr 14 at 17:43
Maximal abelian subalgebra of Banach algebra is closed and contains the unity — Luiz Cordeiro 49411
apr 14 at 13:57
Dihedral group and cyclic group theorem. — Diane Vanderwaif 1466
apr 14 at 13:37
Double integral application — user43418 1009
apr 14 at 9:12
Discretizing continuous surfaces into semi-regular polygons — ronash 1315
apr 13 at 19:12
Generalizing Ramanujan's proof of Bertrand's Postulate: Can Ramanujan's approach be used to show a prime between $4x$ and $5x$ for $x \ge 3$ — Larry Freeman 706117
apr 13 at 1:51
Quicksort analysis problem — Eric Dong 42710
apr 13 at 0:26
Definition of Unipotent in Positive Characteristic — Jared 4,4111835
apr 12 at 18:55
Matrix calculus : Find the gradient/derivative? — halms 15611
apr 12 at 13:24
binomial expansion formula proof, bases on Lagrange form of Taylor series remainder — Crni 707
apr 12 at 9:24
Weakest hypothesis for integration by parts — Cantor 502111
apr 12 at 5:34
Quadratic equation with tricky conditions. Need to prove resulting inequalities. — John Marty 984225
apr 11 at 23:14
Inductive Limit Topology and First Countability — Sean Gomes 47319
apr 11 at 20:44
Question in real analysis about liminf and limsup — leena adam 227
apr 10 at 23:53
Measurable with respect to the product measure — Jake Casey 1518
apr 10 at 19:57
Area between the level sets of a curve — Lord Soth 1,032114
apr 10 at 18:17
Continuous extension of analytic functions — Moritz Reinhard 936
apr 10 at 13:16
Kernel of Fractional Differential Operator — Myke Arya 85517
apr 10 at 12:26
Another Series $\sum\limits_{k=2}^\infty \frac{\log(k)}{k}\sin(2k \mu \pi)$ — Integral 48614
apr 10 at 11:36
let $R$ be a ring , Show that $J(R/J(R))=\{0\}$. — Fayz 1387
apr 9 at 19:10
2d bin packing problem, with opportunity to optimize the size of the bin — Andrew Thomas 11
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