Spectral semi-classical analysis of a complex Schrödinger operator in exterior domains von Almog, Y., Grebenkov, D. S., Helffer, B.

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Courant-sharp Robin eigenvalues for the square: the case with small Robin parameter von Gittins, K., Helffer, B.

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Nodal domains and spectral minimal partitions von Helffer, B., Hoffmann-Ostenhof, T., Terracini, S.

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Computing Nodal Deficiency with a Refined Dirichlet-to-Neumann Map von Berkolaiko, G., Cox, G., Helffer, B., Sundqvist, M. P.

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On the Semiclassical Analysis of the Ground State Energy of the Dirichlet Pauli Operator in Non-Simply Connected Domains von Helffer, B., Persson Sundqvist, M.

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On the third critical field in Ginzburg-Landau theory von FOURNAIS, S, HELFFER, B

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On the Ginzburg-Landau critical field in three dimensions von Fournais, S., Helffer, B.

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Magnetic calculus and semiclassical trace formulas von Helffer, B, Purice, R

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Introduction to some conjectures for spectral minimal partitions von Helffer, B.

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Aharonov–Bohm Hamiltonians, isospectrality and minimal partitions von Bonnaillie-Noël, V, Helffer, B, Hoffmann-Ostenhof, T

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On the Spectrum of Non-Selfadjoint Schrödinger Operators with Compact Resolvent von Almog, Yaniv, Helffer, Bernard

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Spectral properties of higher order anharmonic oscillators von Helffer, B., Persson, M.

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Subelliptic estimates for some systems of complex vector fields: Quasihomogeneous case von Derridj, M., Helffer, B.

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Spectral Methods in Surface Superconductivity von Fournais, Søren, Helffer, Bernard

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Remarks on the boundary set of spectral equipartitions von Bérard, P., Helffer, B.

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Energy asymptotics for Type II superconductors von Fournais, S., Helffer, B.

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Partial differential equations on nilpotent groups von Helffer, B.

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Nodal Sets for Groundstates of Schrödinger Operators with Zero Magnetic Field in Non Simply Connected Domains von Helffer, B., Hoffmann-Ostenhof, M., Hoffmann-Ostenhof, T., Owen, M. P.

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On a magnetic characterization of spectral minimal partitions von Helffer, Bernard, Hoffmann-Ostenhof, Thomas

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The Montgomery model revisited von Helffer, B.

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