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Jun
17
revised Suppose that a $3\times 3$ matrix $M$ has an eigenspace of dimension $3$. Prove that $M$ is a diagonal matrix.
Texified the title
Jun
17
revised Suppose that a $3\times 3$ matrix $M$ has an eigenspace of dimension $3$. Prove that $M$ is a diagonal matrix.
added 263 characters in body
Apr
17
revised About the spectral radius of a kind of matrices
added 161 characters in body
Apr
17
revised Prove or disprove: the spectral radius of a matrix with negative entries and row sums as 1 is larger than 1
added 224 characters in body
Feb
5
revised The positive-definite-ness of RBF kernel
added 41 characters in body
Oct
7
revised How can I get sequence $4,4,2,4,4,2,4,4,2\ldots$ into equation?
TeXification
Oct
6
revised Given a volumen. Which is the suface, that contains it, that has minimal area?
\int x3 -> \iiint
Oct
5
revised Change of variables problem
\int x3 -> \iiint
Jun
13
revised Compound Poisson process with exponential distribution
added 53 characters in body
Jun
13
revised Compound Poisson process with exponential distribution
added 106 characters in body
Jun
12
revised Compound Poisson process with exponential distribution
deleted 202 characters in body
Jun
12
revised Compound Poisson process with exponential distribution
deleted 202 characters in body
Apr
15
revised Similarity between $I+N$ and $e^N$ when $N$ is nilpotent
added 33 characters in body
Apr
14
revised Similarity between $I+N$ and $e^N$ when $N$ is nilpotent
added 359 characters in body
Apr
14
revised Similarity between $I+N$ and $e^N$ when $N$ is nilpotent
added 306 characters in body
Apr
14
revised Similarity between $I+N$ and $e^N$ when $N$ is nilpotent
added 271 characters in body
Oct
17
revised How many $n$'s can make $4m^2-n^2$ a perfect square? And, triple of a perfect square?
edited title
Oct
17
revised How many $n$'s can make $4m^2-n^2$ a perfect square? And, triple of a perfect square?
edited title
Oct
17
revised How many $n$'s can make $4m^2-n^2$ a perfect square? And, triple of a perfect square?
added 79 characters in body
Oct
17
revised How many $n$'s can make $4m^2-n^2$ a perfect square? And, triple of a perfect square?
added 79 characters in body