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Topic: Hodge Riemann bilinear relations


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In the News (Sun 3 Jun 12)

  
  riemann roch made easy
Riemann's point of view was in the reverse order, since he considered as the basic object of study, a compact, connected branched cover of the projective line, and then proved such a manifold is a plane algebraic curve, possibly acquiring singular points from the plane mapping.
The problem Riemann set himself was, given a distinct set of points on a surface of genus g branched over P^1, to calculate the dimension of the space of meromorphic functions with poles only in that that set, and at worst simple poles.
Riemann’s approach was to solve first the analogous but simpler Mittag Leffler problem for meromorphic differentials, and then apply the usual criterion for exactness of differentials to pass to the case of functions.
www.physicsforums.com /showthread.php?t=85205   (3039 words)

  
 UCSC General Catalog Updates 2005-06 - Programs and Courses
Starting with the fundamental theorem of calculus and related techniques, the integral of functions of a single variable is developed and applied to problems in geometry, probability, physics, and differential equations.
The fundamental theorems relating to critical points to the topology of a manifold are treated in detail.
Riemann surfaces, conformal maps, harmonic forms, holomorphic forms, the theorem of Reimann-Roch, the theory of moduli.
reg.ucsc.edu /catalog/html/programs_courses/mathCourses.htm   (3869 words)

  
 [No title]
Duality now relates spectral triples of {\it different} string spacetimes, which could have remarkable implications in the context of M theory, the membrane theory which purports to contain (as different low energy regimes) all consistent superstring theories.
The algebraic relations (\ref{vertexopalg1}) and (\ref{vertexopalg2}) determine, by differentiation of the appropriate vertex operators, corresponding relations among the general higher-spin vertex operators (\ref{spinvertex}).
The full set of relations of the vertex operator algebra $\alg_X$ are presented in a more general context in the appendix, where it is also discussed how the algebraic structure of $\alg_X$ leads to a construction of the corresponding string spacetime along the lines described in section 2.
www.ma.utexas.edu /mp_arc/papers/97-413   (15192 words)

  
 OSU Course Catalog
Counting techniques, generating functions, difference equations and recurrence relations, introduction to graph and network theory.
A rigorous treatment of vector spaces, linear transformations, determinants, orthogonal and unitary transformations, canonical forms, bilinear and hermitian forms, and dual spaces.
Formal grammars, context-free languages and their relation to automata.
www.math.okstate.edu /grad/courses99-00.html   (1789 words)

  
 - Mathematics Courses
Linear transformations, conjugate spaces, duality; theory of a single linear transformation, Jordan normal form; bilinear forms, quadratic forms; Euclidean and unitary spaces, symmetric skew and orthogonal linear transformations, polar decomposition.
More advanced topics, such as sheaves and their cohomology, or introduction to theory of Riemann surfaces, as time permits.
Complex and Kahler geometry, Hodge theory, homogeneous manifolds and symmetric spaces, finiteness and convergence theorems for Riemannian manifolds, almost flat manifolds, closed geodesics, manifolds of positive scalar curvature, manifolds of constant curvature.
www.registrar.ucla.edu /archive/catalog/1997_99/catalog-Mathemat-2.html   (3603 words)

  
 APPENDIX B
Appendix J Relation B.1 immediately implies that the structure constants are antisymmetric in their two lower indices.
The commutation relations show that the ^e_(kj) span the subalgebra so(n) and the ^f_(kj) span an invariant subspace of adj(so(n)).
This is clearly related to the Cartan canonical decomposition in that the pure boosts are elements of the invariant subspace of the decomposition.
graham.main.nc.us /~bhammel/FCCR/apdxB.html   (7012 words)

  
 [No title]
This paper is concerned with* * some remarkable properties of the cohomology of the moduli space of Riemann surfaces discovered by physicists studying two-dimensional topological gravity (an enorm* *ous elaboration of conformal field theory), which appear at first sight quite unfam* *iliar.
A Riemann surface with geodesic boundary is in a natural way an orientable mani- fold with a free T-action on its boundary, and a family of such things, paramet* *rized by a space X, defines an element of ø-2TMU (X+) ~=[X, CP-11^ MU ].
The Lie algebra of G is spanned by the derivations xk+1@x, k 2 Z: it * *is the algebra of vector fields on the circle.
www.math.purdue.edu /research/atopology/Morava/SegalMS.txt   (3564 words)

  
 PlanetMath:
Sectional curvature determines Riemann curvature tensor owned by kerwinhui
Serre relations (in root system underlying a semi-simple Lie algebra) owned by rmilson
skew symmetric (in skew-symmetric bilinear form) owned by sleske
planetmath.org /encyclopedia/S   (3627 words)

  
 MAT 290-016 Gromov-Witten Theory and Virasoro Constraints
Abstract: The GW theory is an intersection theory of cohomology classes on the moduli space of holomorphic maps from a Riemann surface into a symplectic manifold.
The Virasoro conjecture states that the generating function of GW invariants is a solution to the KP-type equations and satisfies the Virasoro constraint conditions.
The surprising fact is that each vector in the "lower part" of the irreducible decomposition corresponds to Hirota's bilinear differential equation of the KP hierarchy.
www.math.ucdavis.edu /~mulase/courses/mat290GW.html   (683 words)

  
 Handbook for Graduate Students Temple University Department of Mathematics
Furthermore, all students are required to present at least two seminar talks on topics related to their research.
Research topics related to probability theory are presented in the seminar.
Grievances relating to other matters, such as workload (for teaching assistants), and the grading of departmental examinations, are not mediated; they should be referred directly to the Graduate Committee of the Mathematics Department for a ruling.
www.math.temple.edu /grad/handbook_for_grad_students_2005.html   (7623 words)

  
 Publications and Preprints of Vladlen Timorin   (Site not responding. Last check: 2007-10-30)
In particular, we generalize Khovanskii's inequalities and prove a partial case of Staley's conjecture.
Moreover, analogues of Hard Lefschetz theorem and the Hodge-Riemann bilinear relations are formulated as inequalities on the volume polynomial and proved in terms of the volume polynomial only.
We prove mixed linear analogues of the Hodge-Riemann bilinear relations.
individual.utoronto.ca /vladlen/publ.html   (566 words)

  
 Usui: Variation of mixed Hodge structures arising from family of logarithmic deformations
Usui: Variation of mixed Hodge structures arising from family of logarithmic deformations
Variation of mixed Hodge structures arising from family of logarithmic deformations.
USUI, Torelli Theorem for Surfaces with pg = c21 = 1 and K Ample and with Certain Type of Automorphism.
www.numdam.org /numdam-bin/item?id=ASENS_1983_4_16_1_91_0   (208 words)

  
 [No title]
Introduction The conclusion of this paper is that the theory of two-dimensional topologi- cal gravity has a remarkably straightforward homotopy-theoretic interpretation * *in terms of a generalized cohomology theory, completely analogous to the more fami* *l- iar interpretation of quantum ordinary cohomology as a topological field theory.
In impressionistic terms this large phase space is essentially a tubular neighb* *orhood of the moduli space of holomorphic maps from a Riemann surface to V, inside the space of all smooth maps.
Questions related to Cartier duality and self-adjointness need to be explored, but it seems likel* *y that these ideas will lead to a VOA-like structure on this large quantum cohomology,* * at least in relatively simple cases like CP (n).
www.math.purdue.edu /research/atopology/Morava/Luminy6-final.txt   (5111 words)

  
 Courses
Topics may include: entire functions, value distribution theory, Riemann surfaces and complex dynamics in one variable.
Introduction to Fourier analysis in Euclidean spaces and related topics that may include singular and oscillatory integrals and trigonometric series.
Advanced topics related to research in harmonic analysis.
www.wisc.edu /grad/catalog/letsci/mathemC.html   (3682 words)

  
 Valley Geometry Seminar
Abstract: The Hodge-Riemann (HR) bilinear relations have many interesting analogs both inside and outside algebraic geometry.
Karu proved HR relations for non-simple polytopes, which generalize HR in intersection cohomology of projective toric varieties.
As a corollary, we obtain nontrivial relations between lattice points in simple polytopes and a generalization of the Ehrhart reciprocity law which is equivalent to the Serre duality.
www.mtholyoke.edu /~jsidman/vgs/vgsFall05.htm   (1099 words)

  
 Previous Rutgers Algebra Seminars (Since 1995)
The relation of the two constructions is, roughly speaking, that of a fixed point set and the associated homotopy fixed point set.
The formulations of modular functors and holomorphic weakly conformal field theories are based on the highly nontrivial assumptions that the moduli space of such surfaces is an infinite-dimensional complex manifold, the determinant lines form a holomorphic line bundle over this moduli space and that the sewing operation is holomorphic.
We shall discuss an intriguing relation between roots of the Bethe ansatz equations corresponding to vacuum states of the $XXZ$ spin chain and the spectrum of one-dimensional Scr${\ddot {\rm o}}$dinger operator with homogeneous potential.
www.math.rutgers.edu /~weibel/oldalgebra.sem.html   (8477 words)

  
 Courses: Math Department, WCAS, Northwestern University
Hodge theory, complex structures, Kahler manifolds, Hodge decomposition, symplectic manifolds and other topics.
Second quarter: possible topics include the connections between modular forms and the representation theory of GL (2), automorphic forms, Galois representations attached to modular forms, and the relations with algebraic geometry and other areas of mathematics.
Classical algebraic K-theory (the functors K0 and K1, origins in and relations with topology); the congruence subgroup problem; techniques of computation (exact sequences, localization, resolution and devissage); polynomial and related extensions; higher K-theories (Karoubi-Villamayor, Quillen).
www.math.northwestern.edu /courses/GradCourses.html   (748 words)

  
 [No title]   (Site not responding. Last check: 2007-10-30)
The Hodge theory of algebraic maps -- Mark Andrea de Cataldo, September 19, 2003
- we decompose H*(X,Q) as a double direct sum of Hodge structures polarized by the intersection form on X (this generalizes the Primitive Lefschetz Decomposition and the Hodge-Riemann Bilinear Relations),
These results imply directly a refined version of the Decomposition Theorem of Beilinson, Bernstein, Deligne and Gabber for arbitrary proper algebraic maps.
www.math.columbia.edu /~thaddeus/abstracts/decataldo03.html   (145 words)

  
 CEU, Department of Mathematics and its Applications
Groups (free groups, generators and defining relations, commutator subgroup, solvable groups, simple groups, simplicity of the alternating groups, classical linear groups).
Group representations (modules over a group algebra, irreducible representations, Maschke Theorem, characters, orthogonality relations, applications to centrally simple algebras and Brauer groups).
Classification of bilinear, symmetric, unimodular forms (outline of proof).
www.ceu.hu /math/Courses/fall0405.html   (2845 words)

  
 [No title]   (Site not responding. Last check: 2007-10-30)
You will need a basic knowledge of complex function theory at the level of Complex Analysis by Lars Ahlfors or Functions of One Complex Variable, Volume I, by John Conway.
Riemann's analysis of finite genus one dimensional complex manifolds is a mathematical gem.
All handouts, problem sets, etc. will be posted on the web here.
www.math.ubc.ca /~feldman/m602/m602outline.html   (85 words)

  
 HERS Output
Generally, students with a strong precalculus background and some calculus experience wil lbegin in their mathematics education here with a deeper study of calculus and related topics.
Covers limits and continuity in metric spaces, uniform convergence and spaces of functions, the Riemann integral, sets of measure zero and conditions for integrability.
A study of Riemannian manifolds, geodesics and curvature, and relations between curvature and topology.
webdocs.registrar.fas.harvard.edu /courses/2000_2001/Mathematics.html   (4411 words)

  
 Dr. Mark Faucette's Web Site
Lecture 2: The Hodge Theory of a Smooth, Oriented, Compact Riemannian Manifold
Lecture 5: The Hodge Theory of Hermitian Manifolds
Lecture 7: The Hard Lefschetz Theorem and the Hodge-Riemann Bilinear Relations
www.westga.edu /~mfaucett/research/research_body.html   (293 words)

  
 The Hard Lefschetz Theorem and the topology of semismall maps - de Cataldo, Migliorini (ResearchIndex)   (Site not responding. Last check: 2007-10-30)
We prove that lef line bundles satisfy the Hard Lefschetz Theorem, the Lefschetz Decomposition and the Hodge-Riemann Bilinear Relations.
We prove a generalization of the Grauert contractibility criterion which we call the Hodge Index Theorem for semismall maps.
We study proper holomorphic semismall maps from complex manifolds and prove that, for constant coecients, the Decomposition Theorem is equivalent to the...
citeseer.ist.psu.edu /410728.html   (503 words)

  
 HERS Output
Methods taught include recurrence relations (linear and non-linear), transfer matrices, and generating functions; topics include frieze patterns, number walls and tilings.There is an emphasis on discovery and the use of computers.
Introduction to several complex variables, pseudoconvexity, domains of holomorphy, the d bar problem, sheaves and cohomology, Kaehler manifolds, Hodge decomposition, Kodaira’s vanishing and embedding theorems, abelian varieties, theta functions of several variables.
Topics in the complex analytic theory of the moduli space of Riemann surfaces, and its relations to topology, hyperbolic geometry, and dynamics.
webdocs.registrar.fas.harvard.edu /courses/2004_2005/Mathematics.html   (5060 words)

  
 week181
For each dot, the space of all figures of the corresponding type is called a "Grassmannian", and it's a manifold of the form G/P, where P is a "maximal parabolic" subgroup of G. More generally, any subset of dots in the Dynkin diagram corresponds to a type of "flag".
More precisely, it has a complex structure that is invariant under the action of G. On the other hand, we can write the flag manifold as K/L, where K is the maximal compact subgroup of G, and L is the intersection of K and P - L is called a "Levi subgroup".
All this stuff is wonderfully important in physics - especially since SL(2,C) is also the double cover of the Lorentz group, and the Riemann sphere is also the "heavenly sphere" upon which we see the distant stars.
math.ucr.edu /home/baez/week181.html   (3175 words)

  
 Wash U Graduate Program : Graduate Course Offerings
An introduction to C*-algebras, von Neumann algebras, and related objects from the point of view of quantization.
This course covers sheaf theory, complex vector bundles, Chern classes, elliptic operator theory, Hodge theory on compact complex manifolds, Hodge-Riemann bilenar relations on Kaehler manifolds, Kodaira-Nakano vanishing theorem, and Kodaira embedding theorem.
The idea of domain of holomorphy, pseudoconvexity, and related ideas is developed.
www.math.wustl.edu /academics/graduate/courses.html   (1976 words)

  
 Mathematics Course Listings
Informal geometry and topology, motion geometry, measurement of geometric figures, LOGO computer language, models and constructions appropriate for elementary classrooms.
Propositional and predicate logic; syntax and semantics; formal deductions; completeness and compactness; Herbrand expansions.
Review of elementary techniques of mathematics and their applications to topics in analysis, such as geometric and algebraic constructions, least upper bound axiom, etc. P/NP or letter grading.
www.registrar.ucla.edu /archive/catalog/2001_03/catalog-456.htm   (3611 words)

  
 GAFA - Papers to Appear
The mixed Hodge-Riemann bilinear relations for compact Kähler manifolds
Holomorphic factorization of determinants of Laplacians on Riemann surfaces and a higher genus generalization of Kronecker’s first limit formula
On the explicit reconstruction of a Riemann surface from its Dirichlet-Neumann operator
www.tau.ac.il /~gafa   (789 words)

  
 Math Forum Discussions
Hodge theory, which I should tell you about sometime...
Euclidean and Lorentzian geometry are related to representations of the
subspaces on which a nondegenerate symmetric bilinear form vanishes.
mathforum.org /kb/thread.jspa?threadID=566772&messageID=1691258   (2607 words)

  
 Courses in Mathematics
This course is required for M.S. Pure Option students.
This course is required for M.S. Applied Option students.
Chain complexes, homology and cohomology groups, the Eilenberg-Steenrod axioms, Mayer-Vietoris sequences, universal coefficient theorems, the Eilenberg- Zilber theorem and Kunneth formulas, cup and cap products, and duality in manifolds.
www.math.okstate.edu /~graddir/courses.html   (1928 words)

  
 Citebase - The mixed Hodge-Riemann bilinear relations for compact Kahler manifolds
The mixed Hodge-Riemann bilinear relations for compact Kahler manifolds
We prove the Hodge-Riemann bilinear relations, the hard Lefschetz theorem and the Lefschetz decomposition for compact Kahler manifolds in the mixed situation.
Users are cautioned not to use it for academic evaluation yet.
citebase.eprints.org /cgi-bin/citations?id=oai:arXiv.org:math/0501449   (95 words)

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