Results 1 to 10 of about 697,217 (162)
Intersection numbers for subspace designs [PDF]
Journal of Combinatorial Designs, 2014 Intersection numbers for subspace designs are introduced and $q$-analogs of the Mendelsohn and K\"ohler equations are given. As an application, we are able to determine the intersection structure of a putative $q$-analog of the Fano plane for any prime ...
Kiermaier, Michael +1 more
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Open intersection numbers and free fields [PDF]
Nuclear Physics B, 2017 A complete set of the Virasoro and W-constraints for the Kontsevich–Penner model, which conjecturally describes intersections on moduli spaces of open curves, was derived in our previous work. Here we show that these constraints can be described in terms
Alexander Alexandrov
doaj +5 more sources
Symplectic cohomology and q-intersection numbers [PDF]
Geometric and Functional Analysis, 2012 Given a symplectic cohomology class of degree 1, we define the notion of an equivariant Lagrangian submanifold. The Floer cohomology of equivariant Lagrangian submanifolds has a natural endomorphism, which induces a grading by generalized eigenspaces ...
A. Abbondandolo +25 more
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Intersection Numbers of Geodesic Arcs [PDF]
Revista Colombiana de Matemáticas, 2014 For a compact surface $S$ with constant negative curvature $-\kappa$ (for some $\kappa>0$) and genus $g\geq2$, we show that the tails of the distribution of $i(\alpha,\beta)/l(\alpha)l(\beta)$ (where $i(\alpha,\beta)$ is the intersection number of the ...
Jaramillo, Yoe Alexander Herrera
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New results of intersection numbers on moduli spaces of curves. [PDF]
Proc Natl Acad Sci U S A, 2007 We present a series of new results we obtained recently about the intersection numbers of tautological classes on moduli spaces of curves, including a simple formula of the n-point functions for Witten's $\tau$ classes, an effective recursion formula to ...
Liu K, Xu H.
europepmc +3 more sources
Intersection numbers from companion tensor algebra
Journal of High Energy PhysicsTwisted period integrals are ubiquitous in theoretical physics and mathematics, where they inhabit a finite-dimensional vector space governed by an inner product known as the intersection number.
Giacomo Brunello +2 more
doaj +3 more sources
Intersection numbers for normal functions [PDF]
Journal of Algebraic Geometry, 2010 We expand the notion of a normal function for a Hodge class on an even-dimensional complex projective manifold to the notion of a 'topological normal function' associated to any primitive integral cohomology class.
Clemens, C. Herbert
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Intersection numbers of spectral curves
, 2011 We compute the symplectic invariants of an arbitrary spectral curve with only 1 branchpoint in terms of integrals of characteristic classes in the moduli space of curves.
Eynard, B.
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A Note on t-designs with t Intersection Numbers [PDF]
Discrete Mathematics & Theoretical Computer Science, 2004 We discuss Ray-Chaudhari and Wilson inequality for a 0-design and give simple proof of the result '\emphFor fixed block size k, there exist finitely many parametrically feasible t-designs with t intersection numbers and λ > 1'.
Rajendra M. Pawale
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On non-proper intersections and local intersection numbers [PDF]
Mathematische Zeitschrift, 2021 AbstractGiven equidimensional (generalized) cycles$$\mu _1$$μ1and$$\mu _2$$μ2on a complex manifoldYwe introduce a product$$\mu _1\diamond _{Y} \mu _2$$μ1⋄Yμ2that is a generalized cycle whose multiplicities at each point are the local intersection numbers at the point. IfYis projective, then given a very ample line bundle$$L\rightarrow Y$$L→Ywe define a
Andersson, Mats +2 more
openaire +2 more sources