Results 11 to 20 of about 149,438 (204)

Non-Abelian Lefschetz hyperplane theorems [PDF]

open access: yesJournal of Algebraic Geometry, 2018
LetXXbe a smooth projective variety over the complex numbers, and letD⊂XD\subset Xbe an ample divisor. For which spacesYYis the restriction mapr:Hom(X,Y)→Hom(D,Y)\begin{equation*}r: \mathrm {Hom}(X, Y)\to \mathrm {Hom}(D, Y) \end{equation*}an isomorphism?Using positive characteristic methods, we give a fairly exhaustive answer to this question.
openaire   +2 more sources

On One Class of the Infinite Non-Abelian Groups

open access: yesCommunications, 2010
We present some properties of one class of the infinite non-abelian groups. We deal with a generalization of the INH and KI groups. Our main results are Theorem 1, 2, 3 and Theorem 4.
Ludovit Tomanek, Anna Tomankova
doaj   +1 more source

The anosov theorem for infranilmanifolds with an odd-order abelian holonomy group

open access: yesFixed Point Theory and Applications, 2006
We prove that N(f)=|L(f)| for any continuous map f of a given infranilmanifold with Abelian holonomy group of odd order. This theorem is the analogue of a theorem of Anosov for continuous maps on nilmanifolds.
H. Pouseele, B. De Rock, K. Dekimpe
doaj   +4 more sources

On Group Codes Over Elementary Abelian Groups

open access: yesSultan Qaboos University Journal for Science, 2003
For group codes over elementary Abelian groups we present definitions of the generator and the parity check matrices, which are matrices over the ring of endomorphism of the group.
Adnan A. Zain
doaj   +1 more source

Vanishing Theorems for constructible Sheaves on Abelian Varieties [PDF]

open access: yes, 2015
We show that the hypercohomology of most character twists of perverse sheaves on a complex abelian variety vanishes in all non-zero degrees. As a consequence we obtain a vanishing theorem for constructible sheaves and a relative vanishing theorem for a ...
Krämer, Thomas, Weissauer, Rainer
core   +1 more source

Krein’s Theorem in the Context of Topological Abelian Groups

open access: yesAxioms, 2022
A topological abelian group G is said to have the quasi-convex compactness property (briefly, qcp) if the quasi-convex hull of every compact subset of G is again compact.
Tayomara Borsich   +2 more
doaj   +1 more source

SOME RESULTS ON GROUPS [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة, 2012
In this paper , we define a certain subgroup ,denoted by ,as follows : of a finite group , and we give some properties of . Main result for is given in theorem 3.5 , which state that is an elementary abelian group if and only ...
YASSIN. A.W.AL-HITI
doaj   +1 more source

Nori 1-motives [PDF]

open access: yes, 2012
Let EHM be Nori's category of effective homological mixed motives. In this paper, we consider the thick abelian subcategory EHM_1 generated by the i-th relative homology of pairs of varieties for i = 0,1. We show that EHM_1 is naturally equivalent to the
D Arapura   +8 more
core   +1 more source

Homogeneous cones and abelian theorems [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1997
This paper deals with analysis on homogeneous cones in ℝn. This subject has its origins in one‐dimensional topics that are connected, often implicitely, with some group properties. The homogeneous cones are open convex cones in ℝn that are at the same time homogeneous spaces, and they are more general than the classical, or symmetric cones.
openaire   +2 more sources

EBERLEIN–ŠMULYAN THEOREM FOR ABELIAN TOPOLOGICAL GROUPS [PDF]

open access: yesJournal of the London Mathematical Society, 2004
Leaning on a remarkable paper of Pryce, the paper studies two independent classes of topological Abelian groups which are strictly angelic when endowed with their Bohr topology. Some extensions are given of the Eberlein–ˇSmulyan theorem for the class of topological Abelian groups, and finally, for a large subclass of the latter, Bohr angelicity is ...
Bruguera Padró, M. Montserrat   +2 more
openaire   +3 more sources

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