Results 171 to 180 of about 204,919 (207)

Surgeon Social Jet Lag and Patient Risk of Major Adverse Events.

JAMA Surg
Pascal L, Polazzi S, Skinner SC, Lifante JC, Mazza S, Duclos A, TopSurgeons Study Group.   +6 more
europepmc   +1 more source

Directional Regularity and Metric Regularity

SIAM Journal on Optimization, 2007
For general constraint systems in Banach spaces, we present the directional stability theorem based on the appropriate generalization of the directional regularity condition, suggested earlier in [A. V. Arutyunov and A. F. Izmailov, Math. Oper. Res., 31 (2006), pp. 526–543].
Aram Arutyunov, Evgeny Avakov
exaly   +4 more sources

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Regular factors of regular graphs

Journal of Graph Theory, 1985
AbstractGiven r ⩾ 3 and 1 ⩽ λ ⩽ r, we determine all values of k for which every r‐regular graph with edge‐connectivity λ has a k‐factor.
Béla Bollobás, Akira Saito, Nicholas C. Wormald   +2 more
openaire   +2 more sources

How Regular are Regular Singularities?

2021
An abstract look at the work of Fuchs and Frobenius on the solutions of ordinary differential equations at regular singularites.
openaire   +2 more sources

How regular is regular? An analysis of menstrual cycle regularity

Contraception, 2004
We performed a retrospective analysis to ascertain how accurately women who believe that they have regular menstrual cycles estimate the length of their actual cycles. Data were extracted from a chart review of subjects from three different studies of barrier contraceptives.
Mitchell D, Creinin, Sharon, Keverline, Leslie A, Meyn   +2 more
openaire   +2 more sources

Spectral regularization and minEnt regularization

IEEE International Conference on Acoustics Speech and Signal Processing, 2002
In this paper, we propose the spectral regularization based on the conventional (spatial) regularization and the Fourier analysis. The entropy regularization is further developed and its connection to MinEnt principle is investigated. The underlying geometrical, physical and biological interpretation of spectral and entropic regularization are ...
openaire   +1 more source

Regular Categories and Regular Functors

Canadian Journal of Mathematics, 1974
Let be a category with nice factorization-properties. If a functor G: —> which has a left-adjoint behaves nice with respect to factorizations then it can be shown quite easily that G behaves well in many other respects, especially that it lifts nice properties from into .
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Regular Rings are Very Regular

Canadian Mathematical Bulletin, 1982
The following problem arose in a conversation with Abraham Zaks: “Suppose R is an associative ring with identity such that every finitely generated left ideal is generated by idempotents. Is R von-Neumann regular?” In the literature the “s” in “idempotents” is missing, and is replaced by “an idempotent”. The answer is, “Yes!”
openaire   +1 more source