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4h
answered $\phi$, and the uses of an alternate formula
4h
answered Ideals in the ring of gaussian integers of a given norm
10h
answered Primitive element and Galois group Computation
2d
answered Equation that defines multi-dimensional polynomial
Apr
16
answered Axioms for constructability
Apr
15
answered Help with double simultaneous equations and roots
Apr
15
answered If every row in a square grid corresponds to a column, then every column corresponds to a row.
Apr
14
answered Quadratic number field which is Euclidean but not norm Euclidean
Apr
13
answered Representative Pedagogical Examples of Groups, Real Functions, Modules, etc.
Apr
12
answered Representative Pedagogical Examples of Groups, Real Functions, Modules, etc.
Apr
11
answered Finding all spanning trees of a strongly connected directed graph
Apr
2
answered Write down a homogeneous linear system of three distinct equations in three variables that has the non-trivial solution $(x, y,z) = (1,2, 4)$
Apr
2
answered $f(x)$ is a polynomial with complex co-effcients taking integer values for all sufficiently large integers $x$ , then $f$ integer for all integers?
Mar
31
answered Modulo operations over Gaussian Integers
Mar
24
answered Two variable polynomial whose image is $\mathbb R^+\setminus\{0\}$
Mar
23
answered If the limit of a sequence of algebraic integers is algebraic, does it need to be an algebraic integer?
Mar
21
answered Find the condition for a center of a circle with exactly one lattice point on its circumference
Mar
16
answered $\sum_{i=1}^{89} \sin^{2n} (\frac{\pi}{180}i)$ is a dyadic rational
Mar
8
answered Reconstruct the original symmetric matrix given Eigen values and the longest Eigen vector
Mar
8
answered Show that $x^2+15y^2=4^n$ has at least $n$ non-negative integer solutions