bio  website  personal.denison.edu/~whiteda 

location  Middletown, CT  
age  
visits  member for  4 years, 5 months 
seen  7 hours ago  
stats  profile views  7,356 
I am an assistant professor at Denison University. I completed my PhD at Wesleyan University in 2014 under the supervision of Mark Hovey, and I completed a masters degree in computer science under the supervision of Danny Krizanc. I'm mostly interested in questions involving (semi) model categories, Bousfield localization, and algebras over (colored) operads. I like to apply my work to stable, equivariant, and motivic homotopy theory. On the computer science side I like thinking about graph theory, probability, and social networks, with an eye towards algorithms. I've also begun to dabble in game theory and economics.
1d

comment 
Model structure on nonnegative differential graded algebras with homological grading
To add to Fernando's answer, have a look at BergerMoerdijk Axiomatic Homotopy for Operads. In this case I'd look for a path object rather than trying to follow Spitzweck and do the filtration style argument for a general cofibrant operad $P$. Those filtrations can get very hairy and often you only end up with a semimodel structure not a full model structure. 
1d

revised 
On various “extension closures” and “orthogonals” in triangulated categories
deleted 3 characters in body 
1d

comment 
On various “extension closures” and “orthogonals” in triangulated categories
As I am sure you know, $E$ can be described as the $D$acyclic objects. If $D$ can be replaced by just a set worth of objects which it suffices to test Mor(d,) against then you can use the machinery of Verdier localization and Bousfield localization to get a lot more traction on $E$. See for example Neeman's book on triangulated categories. In that case $E$ is a colocalizing subcategory, so it's also closed under arbitrary products. I don't know about these pseudoextensions. It reminds me of projective modules, so maybe already covered by retract closure? 
May 14 
revised 
Technical lemma about frame and cosimplicial resolution
deleted 1 character in body 
May 5 
reviewed  Reject riemanniangeometry tag wiki 
May 3 
comment 
What if homotopy were expanded to allow any connected space instead of [0,1]?
Possibly related: mathoverflow.net/questions/80777 
May 1 
revised 
Direct proof that the model category of cdgas is left proper
edited body 
May 1 
reviewed  Approve Algebraic closedness in field of fractions 
Apr 13 
awarded  Notable Question 
Apr 12 
comment 
Snakelike continua and universal images
I am a bit confused by the typesetting. Is that what is supposed to be in the grey box? 
Apr 9 
revised 
Technical lemma about frame and cosimplicial resolution
typos and grammar 
Apr 8 
reviewed  Approve Polynomial generated with primitive element modulo p 
Apr 8 
revised 
Reference Request: Grouplike Algebras over the little $n$cubes operad are $n$fold loop spaces
fixed typo 
Apr 5 
revised 
When does CantorBernstein hold?
Texified because it was on the front page anyway 
Apr 5 
reviewed  Approve Intuition and/or visualisation of Ito integral/Ito's lemma 
Apr 1 
revised 
Why does this fundamental group not have elements of finite order?
added 1 character in body; edited title 
Mar 27 
awarded  Nice Answer 
Mar 25 
revised 
Why is the oriented $G$homotopy type of a $G$complex uniquely determined by the periodicity generator?
edited tags 
Mar 21 
reviewed  Approve When does a perverse sheaf occur in the decomposition theorem? 
Mar 21 
revised 
Continuous maps to fat geometric realizations of simplicial spaces
edited body 