- In mathematics,
Pontryagin duality is a
duality between locally compact abelian groups that
allows generalizing Fourier transform to all such groups, which...
- Lev
Semyonovich Pontryagin (Russian: Лев Семёнович Понтрягин, also
written Pontriagin or Pontrjagin,
first name
sometimes anglicized as Leon) (3 September...
- mathematics, the
Pontryagin classes,
named after Lev
Pontryagin, are
certain characteristic classes of real
vector bundles. The
Pontryagin classes lie in...
- In mathematics, the
Pontryagin product,
introduced by Lev
Pontryagin (1939), is a
product on the
homology of a
topological space induced by a
product on...
-
Pontryagin's maximum principle is used in
optimal control theory to find the best
possible control for
taking a
dynamical system from one
state to another...
- mathematics, the Thom space, Thom complex, or
Pontryagin–Thom
construction (named
after René Thom and Lev
Pontryagin) of
algebraic topology and differential...
- In mathematics, a
Pontryagin cohomology operation is a
cohomology operation taking cohomology classes in H2n(X,Z/prZ) to H2pn(X,Z/pr+1Z) for some prime...
-
either the
Pontryagin–Kuratowski
theorem or the Kuratowski–
Pontryagin theorem, as the
theorem was
reportedly proved independently by Lev
Pontryagin around...
- The Andronov–
Pontryagin criterion is a
necessary and
sufficient condition for the
stability of
dynamical systems in the plane. It was
derived by Aleksandr...
-
Structurally stable systems were
introduced by
Aleksandr Andronov and Lev
Pontryagin in 1937
under the name "systèmes grossiers", or
rough systems. They announced...
