Results 81 to 90 of about 721,077 (354)

On v-Marot Mori rings and C-rings [PDF]

, 2014
C-domains are defined via class semigroups, and every C-domain is a Mori domain with nonzero conductor whose complete integral closure is a Krull domain with finite class group.
Alfred Geroldinger, Alfred Geroldinger, Andreas Reinhart, Andreas Reinhart, Sebastian Ramacher, Sebastian Ramacher   +5 more
core  

Torsion units in integral group rings.

Journal für die reine und angewandte Mathematik (Crelles Journal), 1991
Let \(G\) be a finite nilpotent group and \(U_ 1(ZG)\) the group of augmentation 1 units in the integral group ring \(ZG\). In this important paper the author shows that when \(H\) is a finite subgroup of \(U_ 1(ZG)\), \(uHu^{-1}\subseteq G\), for some unit \(u\) in \(QG\), the rational group algebra of \(G\).
openaire   +2 more sources

Augmentation quotients of integral group rings II

Journal of Pure and Applied Algebra, 1990
Let \(G\) be a group, \(ZG\) the integral group ring of \(G\), \(\Delta(G)\) its augmentation ideal and \(Q_n(G)=\Delta^n(G)/\Delta^{n+1}(G)\), \(n\geq 0\). Let \(G\) be the semidirect product \(H\rtimes K\) of a normal subgroup \(H\) by a subgroup \(K\). When \(G\) is finite and both \(H\) and \(K\) are nilpotent, M. Khambadkone gave a description of \
Karan, Ram, Vermani, L.R.
openaire   +3 more sources

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Lower algebraic K-theory of certain reflection groups

, 2009
For a finite volume geodesic polyhedron P in hyperbolic 3-space, with the property that all interior angles between incident faces are integral submultiples of Pi, there is a naturally associated Coxeter group generated by reflections in the faces ...
Bass, BRUCE A. MAGURN, Curtis, Curtis, Davis, Endó, Farrell, IVONNE J. ORTIZ, JEAN-FRANÇOIS LAFONT, Lück, Oliver, Reiner, Reiner, Wagstaff   +13 more
core   +1 more source

The role and implications of mammalian cellular circadian entrainment

FEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

The surgery obstruction groups of the infinite dihedral group

, 2004
This paper computes the quadratic Witt groups (the Wall L-groups) of the polynomial ring Z[t] and the integral group ring of the infinite dihedral group, with various involutions.
Arf, Browder, Connolly, Francis X Connolly, Hambleton, James F Davis, Ranicki, Ranicki, Scharlau, Wall   +9 more
core   +2 more sources

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Unit, Irreducible, and Prime Elements of The Integral Domain Z[sqrt (5)]

Jurnal Matematika
In abstract algebra at the undergraduate level, the ring Z[sqrt(5)] is often used as a simple example of an integral domain that does not satisfy the unique factorization domain (UFD) but Z[sqrt(5)] is Halfway Factorial Domain (HFD).
Daisyah Alifian Fatahillaj
doaj   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source