Transactions of the AMS. Year 1951. Volume 070. Number 02.


Fundamental properties of Hamiltonian operators of Schr\"odinger type
Tosio Kato
195-211


On the existence of solutions of the helium wave equation
Tosio Kato
212-218


The structure of certain operator algebras
Irving Kaplansky
219-255


Exponential limiting products in Banach algebras
B. O. Koopman
256-276


A law of small numbers in Markoff chains
B. O. Koopman
277-290


Jordan division algebras and the algebras $A(\lambda)$
Charles M. Price
291-300


Universal spaces under strong homeomorphisms
S. W. Hahn
301-311


A general theory of conjugate nets in projective hyperspace
Chuan-Chih Hsiung
312-322


Circular summation and localization of double trigonometric series
Leonard D. Berkovitz
323-344


On the lattice of subgroups of finite groups
Michio Suzuki
345-371


On the $L$-homomorphisms of finite groups
Michio Suzuki
372-386