1,548 reputation
1430
bio website math.iupui.edu/~rperez
location Indianapolis
age 41
visits member for 3 years
seen Apr 14 at 20:01

Associate Professor, IUPUI.
PhD: 2002, Stony Brook.
IMO: 1991


1d
awarded  Favorite Question
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26
awarded  Yearling
Jan
24
answered The Inverse of the Euler Totient Function
Jan
14
awarded  Nice Answer
Dec
24
comment Reversing shortest paths among unit disks
Maybe I'm missing something, but isn't your second example already a counterexample to Q1?
Nov
6
awarded  Favorite Question
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30
awarded  Nice Answer
Oct
22
reviewed No Action Needed Is it possible to construct a formal group law from a Lie group without choosing coordinates?
Oct
19
reviewed No Action Needed Basic Questions on Elliptic Complex
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1
awarded  Caucus
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30
reviewed No Action Needed NP-hardness of sparsest cut
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17
awarded  Good Question
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10
awarded  Custodian
Sep
10
reviewed No Action Needed What is the maximum-entropy distribution given mean, variance, skewness, and kurtosis?
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27
awarded  Nice Answer
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23
awarded  Nice Answer
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6
awarded  Notable Question
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awarded  Informed
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awarded  Excavator
Jun
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answered Calculus book in the spirit of the 18th century