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visits member for 1 year, 11 months
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Trying to learn math :)


Oct
28
asked Help defining an open cover
Sep
21
asked How many solutions does the equation $2i+j+3k=l$ have in nonnegative integers?
Sep
18
answered critical points, differential equation
Sep
15
answered Stability analysis for a system of two differential equations
Sep
4
asked self-adjoint operator without eigenvalues?
Aug
23
answered Every solution of the system is attracted to the center manifold
Aug
8
answered Unique solution to a arbitrary non-linear system under monotonicity assumptions
Aug
2
answered Stable manifold for bidimensional nonlinear dynamic system with complex eigenvalues
Jul
29
asked Doubt with smooth extensions
Jul
27
asked Help with operator $f(x^q)=\frac{1}{q+1}x^q$.
Jul
24
asked Help with function $f_r(x^q)=q^rx^{q-1}$
Jun
9
answered Is $ \gamma(t) = \left( A \cos(\sqrt{a} t),B \cos \! \left( \sqrt{b} t \right) \right) $ dense in the rectangle $ [- A,A] \times [- B,B] $?
Apr
30
answered derive an equation for this mass spring damper
Apr
19
answered near identity change of coordinates
Apr
11
answered Help Finding Saddle Connections of a System
Apr
11
answered 2nd order linear differential equation
Mar
18
answered Topological conjugation between two flows
Mar
11
answered Consider the system $x'= \frac{-x}{2}; y' = 2y + x^2 $ to solve the system and find topologically conjugacy and show topologically conjugate
Feb
6
answered Explicit topological conjugation between two ODEs
Nov
19
answered Ptolemy Trig/Geometry Help Please