Now showing items 1-10 of 722
Differential operators commuting with invariant functions
(Birkhäuser Verlag; Birkhäuser Verlag, Basel, ; Springer Science+Business Media, 1997-10)
Let be a reductive, complex Lie algebra, with adjoint group G , let G act on the ring of differential operators via the adjoint action and write for the differential of this action. We prove that the commutant, in , of is ...
Immanants of Totally Positive Matrices are Nonnegative
(Oxford University PressWiley Periodicals, Inc., 1991-09)
Solutions of the Oppenheimer--Volkoff Equations Inside 9/8$^{ths}$ of the Schwarzschild Radius
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 1997-03)
We refine the Buchdahl 9/8 ths stability theorem for stars by describing quantitatively the behavior of solutions to the Oppenheimer–Volkoff equations when the star surface lies inside 9/8 ths of the Schwarzschild radius. ...
Rapid protein release from Escherichia coli by chemical permeabilization under fermentation conditions
(Wiley Subscription Services, Inc., A Wiley Company, 1992-03-25)
Overall protein release greater than 75% in less than 1 h can be attained by exposing exponentially growing Escherichia coli cells to 0.4 M guanidine plus 0.5% Triton X-100 at 37°C in medium. Cell growth stops immediately ...
Population distributions in the vibrational deactivation of benzene and benzene-d6. First and second moments derived from two-color infrared fluorescence measurements
(Elsevier, 1993-09-01)
Time-resolved two-color infrared fluorescence (IRF) from highly vibrationally excited benzene and benzene-d6 has been used to determine means and variances of the excited molecule population distributions over the majority ...
Harmonious groups
(Elsevier, 1991-03)
In this paper we introduce a method of sequencing the elements of a finite group that gives rise to a complete mapping of the group. Our definition was motivated by the concept of a harmonious graph invented by Graham and ...
Universality in the Thomas-Fermi-von Weizsäcker model of atoms and molecules
(Springer-Verlag, 1990-05)
We study the Thomas-Fermi-von Weizsäcker theory of atoms and molecules. The main result is to prove universality of the structure of very large atoms and molecules, i.e., proving that the structure converges as the nuclear ...
Multi‐Duality in Minimal Surface—Type Problems
(Princeton University PressWiley Periodicals, Inc., 1995-08)
On the diophantine equation apx + bqy = c + dpzqw
(Elsevier, 1990-06)
In this paper, the existence of effectively computable bounds on the solutions to the diophantine equation apx+bqy = c+dpzqw is shown. In this equation p, q are taken to be fixed relatively prime positive integers and a, ...