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user3433489
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7 votes
2 answers
768 views

Solution to Lagrange's Four Square Theorem with Fewest Terms

3 votes
0 answers
84 views

Hermite normal form of infinite matrix

2 votes
3 answers
98 views

Find which variables must be zero for non-negative solution to homogeneous linear equations

1 vote
1 answer
180 views

projecting a boundary on a curved surface to boundary in xy plane

1 vote
1 answer
36 views

Conditional probabilities inside joint probabilities

1 vote
0 answers
123 views

Show that Feasible Region of Linear Program is a Single Point

1 vote
1 answer
49 views

Simplex Method with Nontrivial Initial Solution

1 vote
1 answer
2k views

Fixed-Point Theorem Based on Derivative?

1 vote
0 answers
42 views

Number of loops in a type of directed multigraph

0 votes
1 answer
170 views

distorted sine function

0 votes
2 answers
53 views

Coloring squares on grid with constraints

0 votes
0 answers
204 views

reduced row echelon form for an infinite matrix