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Coherent topology information


In topology, a coherent topology is a topology that is uniquely determined by a family of subspaces. Loosely speaking, a topological space is coherent with a family of subspaces if it is a topological union of those subspaces. It is also sometimes called the weak topology generated by the family of subspaces, a notion that is quite different from the notion of a weak topology generated by a set of maps.[1]

  1. ^ Willard, p. 69

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Coherent topology

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Sequence space

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Perfect complex

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{O}}_{X}} is not coherent, working with coherent sheaves has awkwardness (namely the kernel of a finite presentation can fail to be coherent). Because of...

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Geometry

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'topology is rubber-sheet geometry'. Subfields of topology include geometric topology, differential topology, algebraic topology and general topology....

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Zariski topology, and the second using the classical (Euclidean) topology.) For example, the equivalence between algebraic and analytic coherent sheaves...

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Stone space

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Spectrum of a ring

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I{\text{ is an ideal of }}R\}.} This topology is called the Zariski topology. A basis for the Zariski topology can be constructed as follows. For f ∈...

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Weak Hausdorff space

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show that the coherent topology induced by compact Hausdorff subspaces preserves the compact Hausdorff subspaces and their subspace topology requires that...

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Euler characteristic

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Squeezed coherent state

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In physics, a squeezed coherent state is a quantum state that is usually described by two non-commuting observables having continuous spectra of eigenvalues...

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Algebraic geometry and analytic geometry

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functor. The prototypical theorem relating X and Xan says that for any two coherent sheaves F {\displaystyle {\mathcal {F}}} and G {\displaystyle {\mathcal...

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Stone duality

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category CohSp of coherent spaces (and coherent maps) is equivalent to the category CohLoc of coherent (or spectral) locales (and coherent maps), on the assumption...

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Cohomology

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In mathematics, specifically in homology theory and algebraic topology, cohomology is a general term for a sequence of abelian groups, usually one associated...

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Intel Ultra Path Interconnect

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low-latency coherent interconnect for scalable multiprocessor systems with a shared address space. It uses a directory-based home snoop coherency protocol...

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Denis Auroux

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algebraic geometry, the Nisnevich topology, sometimes called the completely decomposed topology, is a Grothendieck topology on the category of schemes which...

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Coherent states in mathematical physics

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