Hans Lundmark

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Name	Hans Lundmark
Member for	3 years
Seen	May 22 at 9:54
Website	mai.liu.se/~halun
Location	Linköping, Sweden
Age	43

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Eigenvectors of a certain big upper triangular matrix

Strengthening the Induction Hypothesis

Are there other nice math books close to the style of Tristan Needham?

Local linearization of ODE at singular point

What’s your favorite equation, formula, identity or inequality?

If the second derivative of a function on $\mathbb R^n$ is everywhere nondegenerate, does it follow that the first derivative is an injection?

Geodesics on a hyperbolic paraboloid

Bertrand theorem - central forces

Undergraduate Level Math Books

Nice Classes of Non-Closable Operators

A plausible inequality.

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big-list× 3
ds.dynamical-systems× 2
books× 2
unbounded-operators
soft-question
reference-request
mp.mathematical-physics
math-communication
linear-algebra
inequalities

hyperbolic-geometry
hilbert-spaces
graph-theory
graph-colorings
fa.functional-analysis
dg.differential-geometry
co.combinatorics
classical-mechanics
calculus

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