Примеры использования Chern на Английском языке и их переводы на Русский язык
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See also Chern polynomial.
AS-182 enamel Red,oranzh., chern., gray.
Chern classes are also feasible to calculate in practice.
In algebraic geometry there is a similar theory of Chern classes of vector bundles.
Some believe that Chernivtsi originated from the ancient city Chern.
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In Odessa finished second leg 1/8 final of the Cup of Ukraine on football,in which Odessa"Chern….
The Chern character is used in the Hirzebruch-Riemann-Roch theorem.
If X is finite-dimensional then most terms vanish and td(E)is a polynomial in the Chern classes.
That is, Chern classes are cohomology classes in the sense of de Rham cohomology.
For complex vector bundles of dimension greater than one, the Chern classes are not a complete invariant.
Algebro-geometric Chern classes do not require the underlying field to have any special properties.
There are various ways of approaching the subject,each of which focuses on a slightly different flavor of Chern class.
The theory of Chern classes gives rise to cobordism invariants for almost complex manifolds.
Many(and possibly all)pairs of integers satisfying these conditions are the Chern numbers for some complex surface of general type.
The Chern classes of M are thus defined to be the Chern classes of its tangent bundle.
Their second Betti number is 2,the second Chern number vanishes, and the holomorphic Euler characteristic vanishes.
The Chern character is useful in part because it facilitates the computation of the Chern class of a tensor product.
The estate is located to the south of Yasnaya Polyana- in the Chern district of the Tula region where it borders the Oryol region,on the river Chern.
The Chern classes offer some information about this through, for instance, the Riemann-Roch theorem and the Atiyah-Singer index theorem.
Therefore, the pullback by either f org of any universal Chern class to a cohomology class of M must be the same class.
The first Chern class turns out to be a complete invariant with which to classify complex line bundles, topologically speaking.
In differential geometry(and some types of algebraic geometry), the Chern classes can be expressed as polynomials in the coefficients of the curvature form.
The Chern classes provide a simple test: if the Chern classes of a pair of vector bundles do not agree, then the vector bundles are different.
That is, there is a bijection between the isomorphism classes of line bundles over X and the elements of H2(X;Z),which associates to a line bundle its first Chern class.
There is a generalization of the theory of Chern classes, where ordinary cohomology is replaced with a generalized cohomology theory.
The Chern numbers of the tangent bundle of a complex(or almost complex) manifold are called the Chern numbers of the manifold, and are important invariants.
The Bogomolov-Miyaoka-Yau inequality is the inequality c 1 2≤ 3 c 2{\displaystyle c_{ 1}^{ 2}\ leq 3c_{2}}between Chern numbers of compact complex surfaces of general type.
There is another construction of Chern classes which take values in the algebrogeometric analogue of the cohomology ring, the Chow ring.
The guests of the festival will see and hear bright, talented young folk groups that lovingly study and perform traditional folk music of Tula Region, and their experienced guides: ethnographic groups from the village of Kutuzovka(Bogoroditsk District) and the village of Stoyanovo(Odoev District), andthe Choir of Dukhobors(spirit fighters) from the village of Arkhangelskoye Chern District.
For varieties over general fields, the Chern classes can take values in cohomology theories such as etale cohomology or l-adic cohomology.