OP-01015 Open Can a mixed Steklov–Neumann problem be isospectral to a pure Steklov problem? SP · Colbois–Girouard–Gordon–Sher Steklov problems · isospectral manifolds · orbifolds · Steklov eigenvalues
OP-01016 Open Does the Steklov spectrum determine the Laplace spectrum of the boundary? SP · Colbois–Girouard–Gordon–Sher Steklov problems · inverse spectral problems · isospectral manifolds · Steklov eigenvalues
OP-01017 Open Steklov isospectral manifolds that are not Neumann isospectral SP · Colbois–Girouard–Gordon–Sher Steklov problems · isospectral manifolds · Steklov eigenvalues
OP-01018 Open Steklov isospectral manifolds that are not strongly Steklov isospectral SP · Colbois–Girouard–Gordon–Sher Steklov problems · isospectral manifolds · Robin problem · Steklov eigenvalues
OP-01020 Open Steklov spectra on forms of different degrees for manifolds SP · Colbois–Girouard–Gordon–Sher Steklov problems · differential forms · isospectral manifolds · Steklov eigenvalues