Results 1 to 10 of about 192 (85)

Relative topology of real algebraic varieties in their complexifications [PDF]

open access: yesPacific Journal of Mathematics, 2004
An algebraic model of a closed smooth manifold \(M\) is a nonsingular real algebraic variety \(X\) diffeomorphic to \(M\) (such a model always exists). In this paper, the existence of such models \(X\) having good complexifications is considered. The main result states that \(M\) is formal (in the sense of Sullivan) if it admits an algebraic model \(X\)
Yildiray Ozan
exaly   +3 more sources

The topology of Real Algebraic Varieties [PDF]

open access: yesCurrent Developments in Mathematics, 2000
János Kollár
exaly   +2 more sources

Sampling Real Algebraic Varieties for Topological Data Analysis [PDF]

open access: yes2019 18th IEEE International Conference On Machine Learning And Applications (ICMLA), 2019
Topological data analysis (TDA) provides a growing body of tools for computing geometric and topological information about spaces from a finite sample of points. We present a new adaptive algorithm for finding provably dense samples of points on real algebraic varieties given a set of defining polynomials.
Emilie Dufresne   +3 more
openaire   +5 more sources

Semialgebraic topology over a real closed field I: Paths and components in the set of rational points of an algebraic variety [PDF]

open access: yesMathematische Zeitschrift, 1981
We fix once and for all a real closed base field R. By a variety X over R we mean a separated algebraic scheme X over R. For all problems attacked here we could equally well assume that X is also reduced, since we are only interested in the set X(R) of rational points of X.
KNEBUSCH, Manfred, Delfs, Hans
openaire   +4 more sources

Topological properties of real algebraic varieties: du coté de chez Rokhlin [PDF]

open access: yesRussian Mathematical Surveys, 2000
The survey gives an overview of the achievements in topology of real algebraic varieties in the direction initiated in the early 70th by V.I.Arnold and V.A.Rokhlin. We make an attempt to systematize the principal results in the subject. After an exposition of general tools and results, special attention is paid to surfaces and curves on surfaces.
Degtyarev, A. I., Kharlamov, V. M.
openaire   +3 more sources

Explicit estimates for Betti numbers and their arithmetic applications

open access: yes四川大学学报. 自然科学版
This survey discusses explicit estimates for Betti numbers of algebraic varieties and their arith-metic applications.The guiding problem is to bound the total Betti number, or the compactly supported total Betti number, of a variety defined by equations ...
WAN Daqing, ZHANG Dingxin
doaj  

A topological characterization of real algebraic varieties [PDF]

open access: yesBulletin of the American Mathematical Society, 1980
Akbulut, Selman, King, Henry C.
openaire   +3 more sources

Topological properties of real algebraic varieties: Rokhlin's way.

open access: yes, 1999
This is a survey which gives an overview of the achievements in topology of real algebraic varieties initiated in the early 70th by V.I.Arnold and V.A.Rokhlin. We make an attempt to systematize the principal results in the subject. After an exposition of general tools and results, special attention is paid to surfaces and curves on surfaces.
Degtyarev, Alexander   +1 more
openaire   +1 more source

DNA Sequence and Structure under the Prism of Group Theory and Algebraic Surfaces. [PDF]

open access: yesInt J Mol Sci, 2022
Planat M   +5 more
europepmc   +1 more source

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