Geometrie (2.167 Artikel)

Valuations of fields.- Valuation topologies and the approximation theorem.- Valued vector spaces.- Projective Hjelmslev spaces.

The study of lattice varieties is a field that has experienced rapid growth in the last 30 years, but many of the interesting and deep results discovered in that period have so far only appeared in...

Some fundamentals of locally convex spaces.- Countably compact sets and the theorem of Eberlein - Grothendieck.- Bounding sets in the weak topology.- Sequential compactness and angelic spaces.- Poi...

On the geometry of elliptic modular surfaces and representations of finite groups.- On the rationality of certain moduli spaces related to curves of genus 4.- A construction of special space curves...

Algorithmic and Geometric Topics Around Free Groups and Automorphisms

A*(I) and B*(I).- A*(I) - B*(I).- ?*(I).- A characterization of ?*(I).- Asymptotic sequences.- Asymptotic sequences over ideals.- Asymptotic grade.- When A* = ?*.- Conforming relations.- Ideal tran...

On Brauer groups of some normal local rings.- The Brauer group of affine curves.- On Brauer groups in characteristic p.- A module approach to the Chase-Rosenberg-Zelinsky sequences.- Long exact seq...

Aspects of non-commutative order.- Correspondences between von neumann algebras and discrete automorphism groups.- The construction and decomposition of quantum fields using operator theory, probab...

We restrict ourselves to two aspects of the field of group schemes, in which the results are fairly complete: commutative algebraic group schemes over an algebraically closed field (of characterist...

Preliminaries.- Compact semitopological semigroups.- Almost periodic and weakly almost periodic functions on semitopological semigroups.- Examples.

Both advanced graduate students and researchers in algebraic geometry will find this book a valuable read.

Resolution statements for a vector field.- A partial winning strategy.- Standard transitions from type I.- A winning strategy for type one.- Types two and three.

The problem of determining which S-arithmetic groups have a finite presentation is solved for arbitrary linear algebraic groups over finite extension fields of #3. For certain solvable topological ...

Some translation planes that are not well known.- Linear groups and collineation groups.

Preliminaries.- Rings with no |G|-torsion: Existence of fixed elements, the prime radical and Jacobson radical of RG.- Simple rings: Inner and outer automorphisms, simple fixed rings, R as an RG-mo...