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Note on Linear Difference and Differential Equations.
Birkhoff GD. Birkhoff GD. Proc Natl Acad Sci U S A. 1941 Jan 15;27(1):65-7. doi: 10.1073/pnas.27.1.65. Proc Natl Acad Sci U S A. 1941. PMID: 16588429 Free PMC article. No abstract available.
Proof of the Ergodic Theorem.
Birkhoff GD. Birkhoff GD. Proc Natl Acad Sci U S A. 1931 Dec;17(12):656-60. doi: 10.1073/pnas.17.2.656. Proc Natl Acad Sci U S A. 1931. PMID: 16577406 Free PMC article. No abstract available.
An Ergodic Theorem for General Semi-Groups.
Birkhoff G. Birkhoff G. Proc Natl Acad Sci U S A. 1939 Dec;25(12):625-7. doi: 10.1073/pnas.25.12.625. Proc Natl Acad Sci U S A. 1939. PMID: 16588310 Free PMC article. No abstract available.
Some Remarks Concerning Schrödinger's Wave Equation.
Birkhoff GD. Birkhoff GD. Proc Natl Acad Sci U S A. 1933 Mar;19(3):339-44. doi: 10.1073/pnas.19.3.339. Proc Natl Acad Sci U S A. 1933. PMID: 16577521 Free PMC article. No abstract available.
Dynamical Systems with Two Degrees of Freedom.
Birkhoff GD. Birkhoff GD. Proc Natl Acad Sci U S A. 1917 Apr;3(4):314-6. doi: 10.1073/pnas.3.4.314. Proc Natl Acad Sci U S A. 1917. PMID: 16586726 Free PMC article. No abstract available.
Note on a Canonical Form for the Linear q-Difference System.
Birkhoff GD, Guenther PE. Birkhoff GD, et al. Proc Natl Acad Sci U S A. 1941 Apr 15;27(4):218-22. doi: 10.1073/pnas.27.4.218. Proc Natl Acad Sci U S A. 1941. PMID: 16578011 Free PMC article. No abstract available.
The Hydrogen Atom and the Balmer Formula.
Birkhoff GD. Birkhoff GD. Proc Natl Acad Sci U S A. 1927 Mar;13(3):165-9. doi: 10.1073/pnas.13.3.165. Proc Natl Acad Sci U S A. 1927. PMID: 16587168 Free PMC article. No abstract available.
36 results