The fundamental group and the spectrum of the Laplacian.
Brooks, Robert
Commentarii mathematici Helvetici, Tome 56 (1981), p. 581-598 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1981-01-01
EUDML-ID : urn:eudml:doc:139885 
@article{GDZPPN002064448,
     title = {The fundamental group and the spectrum of the Laplacian.},
     journal = {Commentarii mathematici Helvetici},
     volume = {56},
     year = {1981},
     pages = {581-598},
     zbl = {0495.58029},
     url = {http://dml.mathdoc.fr/item/GDZPPN002064448}
}

Brooks, Robert. The fundamental group and the spectrum of the Laplacian.. Commentarii mathematici Helvetici, Tome 56 (1981) pp. 581-598. http://gdmltest.u-ga.fr/item/GDZPPN002064448/