10 citations · 13 across the 4 of their papers we have counts for
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math-ph2005★ 3 cited
Necklaces with interacting beads: isoperimetric problems
Pavel Exner
We discuss a pair of isoperimetric problems which at a glance seem to be unrelated. The first one is classical: one places identical point charges at a closed curve at the…
math-ph2005
Approximations of permutation-symmetric vertex couplings in quantum graphs
Pavel Exner, Ondrej Turek
We consider boundary conditions at the vertex of a star graph which make Schroedinger operators on the graph self-adjoint, in particular, the two-parameter family of such condition…