Skip to main content
MathOverflow
Piyush Grover's user avatar
Piyush Grover's user avatar
Piyush Grover's user avatar
Piyush Grover
  • Member for 11 years, 11 months
  • Last seen more than a week ago
Profile Activity

506 Actions

All Accepts Posts Badges Comments Revisions Reviews Suggestions
awarded
 Good Question
awarded
 Nice Question
asked
Mathematics of imaging the black hole
answered
Measuring how suboptimal control is
comment
Approximation of a compactly supported function by Gaussians
Is there a reason why you expect the conjecture to be true ? I believe you may need to put sparsity (like an L1 norm) and/or positivity constrains on weights to get what you want.
comment
Approximation of a compactly supported function by Gaussians
Are weights constrained to be positive ?
comment
Deformation gradient conservation law from Lagrangian to Eulerian formulation
The notation is not clear. $v$ is the velocity or volume ? Also, the first equation should read $\frac{\partial F}{\partial t}=\nabla \tilde v. F$
comment
Numerical methods for IDE
Googling tip: search for non-local differential equations, which is another name for IDEs.
answered
Practical applications of Sobolev spaces
comment
Doubts related Shifting from Pure to Applied math
Theoretical physics involves applied math, by definition.
comment
Graph Laplacian Operator
Can you explain the connection of your question with graph laplacian ?
comment
Heuristic probabilistic argument for the Navier-Stokes existence and smoothness conjecture
yes, 100+ years of experiments agree with NS predictions.
awarded
 Yearling
comment
Solutions of nonlinear equations with multiple parameters
In general, one uses numerical tools, such as Auto, see here: indy.cs.concordia.ca/auto
comment
Examples of mathematical papers that contain a kind of research report
Not a paper, but Villani's "Birth of a Theorem" does that kind of thing in detail.
comment
Measure preserving coordinates of $S^2$ from $[0,1]^2$
see gall-peters projection for a commonly used area preserving projection used in geographical maps.
revised
Non-linear Basis for PDE's
added 41 characters in body
revised
Non-linear Basis for PDE's
added 19 characters in body
revised
Non-linear Basis for PDE's
added 19 characters in body
answered
Non-linear Basis for PDE's
1
…
11 12
13
14 15
…
26