Results 21 to 30 of about 384,953 (220)
Regular Homomorphisms and Regular Maps
European Journal of Combinatorics, 2002 AbstractRegular homomorphisms of oriented maps essentially arise from a factorization by a subgroup of automorphisms. This kind of map homomorphism is studied in detail, and generalized to the case when the induced homomorphism of the underlying graphs is not valency preserving.
Martin Škoviera +2 more
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Some matrix nearness problems suggested by Tikhonov regularization
, 2016 The numerical solution of linear discrete ill-posed problems typically requires regularization, i.e., replacement of the available ill-conditioned problem by a nearby better conditioned one.
Noschese, Silvia, Reichel, Lothar
core +1 more source
Regularity of eigenstates in regular Mourre theory
Journal of Functional Analysis, 2011 The present paper gives an abstract method to prove that possibly embedded eigenstates of a self-adjoint operator $H$ lie in the domain of the $k^{th}$ power of a conjugate operator $A$. Conjugate means here that $H$ and $A$ have a positive commutator locally near the relevant eigenvalue in the sense of Mourre.
Møller, Jacob Schach +1 more
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Edge-regular graphs with regular cliques [PDF]
European Journal of Combinatorics, 2018 We exhibit infinitely many examples of edge-regular graphs that have regular cliques and that are not strongly regular. This answers a question of Neumaier from 1981.
Gary R.W. Greaves, Jack H. Koolen
openaire +4 more sources
Operator Regularization of Feynman diagrams at multi-loop order
, 2011 It may be possible to use operator regularization with Feynman diagrams, which would greatly simplify its use as it has so far been limited to the more complicated Schwinger approach.
Shiekh, A. Y.
core +1 more source
Optimal computational and statistical rates of convergence for sparse nonconvex learning problems [PDF]
, 2013 We provide theoretical analysis of the statistical and computational properties of penalized $M$-estimators that can be formulated as the solution to a possibly nonconvex optimization problem.
Liu, Han, Wang, Zhaoran, Zhang, Tong
core +1 more source
Regular and completely regular differential operators [PDF]
Mathematical Notes, 2007 We define the concept of completely regular ordinary differential operators and give various criteria for operators to belong to this class. We give also criteria for Birkhof regularity of ordinary differential operators in terms of the growth of the Green function and basis property.
E. A. Shiryaev, A. A. Shkalikov
openaire +3 more sources
, 2018 Adherent cells exert traction forces on to their environment, which allows them to migrate, to maintain tissue integrity, and to form complex multicellular structures.
Gompper, Gerhard +7 more
core +2 more sources
i-Perception, 2017 The current study examined whether regularity of dot patterns would influence time perception. We presented observers the dot patterns with three levels of regularity (high, middle and low) and measured the perceived duration of each pattern by bisection and rating methods.
Kyoshiro Sasaki, Yuki Yamada
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miRNA‐29 regulates epidermal and mesenchymal functions in skin repair
FEBS Letters, EarlyView.miRNA‐29 inhibits cell‐to‐cell and cell‐to‐matrix adhesion by silencing mRNA targets. Adhesion is controlled by complex interactions between many types of molecules coded by mRNAs. This is crucial for keeping together the layers of the skin and for regenerating the skin after wounding.
Lalitha Thiagarajan +10 more
wiley +1 more source