Results 101 to 110 of about 379,338 (251)

Let's forget about the pairing

open access: yesMoldavian Journal of the Physical Sciences, 2014
The algebraic formulation of a Wick's theorem that allows one to present the vacuum or thermal averages of the chronological product of an arbitrary number of field operators as a determinant (permanent) of the matrix is proposed.
Belousov, Igor
doaj  

On Validated Computing in Algebraic Number Fields

open access: yesJournal of Symbolic Computation, 1997
The author considers the use of decimal approximations (rather than integer arithmetic) in number field computations required (say) for finding units, e.g., divisibility of two numbers in an order and finding numbers with given norm. The LLL-algorithm is useful in ensuring scaled matrices for the basis (and conjugates).
openaire   +3 more sources

Straight-line programs with memory and matrix Bruhat decomposition

open access: yes, 2013
We advocate that straight-line programs designed for algebraic computations should be accompanied by a comprehensive complexity analysis that takes into account both the number of fundamental algebraic operations needed, as well as memory requirements ...
Niemeyer, Alice C.   +2 more
core  

Home - About - Disclaimer - Privacy