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A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

168,742 papers · 148 categories

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48 results for m-Coefficient/Index Annihilation Theorem

The paper derives statistics of multi-factor functions from their Fourier transforms.

problem Deriving statistics of multi-factor functions from Fourier transforms.
method Developed an m-Coefficient/Index Annihilation Theorem to analyze the moments of a function from its Fourier transform.
result The mth moment of a function becomes a series of terms, each with precisely m Fourier coefficients, and the indices sum to zero.

We prove that if Q is a finite quasigroup quandle, then |Q| annihilates the torsion of its homology. It is a classical result in reduced homology of finite groups that the order of a group annihilates its homology. From the very beginning of the rack homology (between 1990 and 1995) the analogous result was suspected. …

2014-11-06abs ↗pdf ↗

It is a classical result in reduced homology of finite groups that the order of a group annihilates its homology. Similarly, we have proved that the torsion subgroup of rack and quandle homology of a finite quasigroup quandle is annihilated by its order. However, it does not hold for connected quandles in general. In t…

2015-10-12abs ↗pdf ↗

The paper studies the center of the Goldman Lie algebra and its properties.

problem Identifying the center of the Goldman Lie algebra and its properties.
method Analyzing the Goldman Lie algebra as a Z_2-graded Lie algebra and using properties of the even part.
result The center of the even part of the Goldman Lie algebra is generated by specific classes of loops.

Study on symmetric operators on non-compact manifolds, focusing on their index modulo 2.

problem Investigating elliptic operators with a specific symmetry and their index modulo 2.
method Analysis of Callias-type operators on non-compact manifolds, establishing mod 2 versions of index theorems.
result Established mod 2 versions of the Gromov-Lawson relative index theorem, Callias index theorem, and Boutet de Monvel's index theorem for Toeplitz operators.

The Dirac operator d+delta on the Hodge complex of a Riemannian manifold is regarded as an annihilation operator A. On a weighted space L_mu^2 Omega, [A,A*] acts as multiplication by a positive constant on excited states if and only if the logarithm of the measure density of mu satisfies a pair of equations. The equati…

2001-04-17abs ↗pdf ↗

Proves a lattice version of the Atiyah-Singer index theorem.

problem Index problems of Wilson-Dirac operators on lattice approximations of manifolds.
method Formulates and proves a KK-theoretic formula for an index-type invariant.
result Main theorem gives a formula for an index-type invariant of operators on lattice approximations of closed integral affine manifolds.

Formulates Index III lemma and Rauch III theorem with applications.

problem Develops new mathematical theorems based on existing ones.
method Formulation of Index III lemma and Rauch III theorem based on Index I, II lemmas and Rauch I, II theorems.
result Presented Rauch's type theorem and volume comparison result as applications.

The paper derives a formula for Lefschetz number of a geometric endomorphism.

problem Calculating the Lefschetz number for a singular foliation.
method Adapting the Atiyah-Bott theorem to a geometric endomorphism of a complex of LT\mathcal{L}_{\mathcal{T}}-parallel sections.
result A formula for the Lefschetz number of a geometric endomorphism.

Researchers prove an equivariant index theorem on Euclidean space.

problem Calculating the equivariant index of the Bott-Dirac operator on R2n\mathbb{R}^{2n}.
method Continuous field of CC^*-algebras and equivariant index theorem.
result Explicit calculation of the equivariant index of the Bott-Dirac operator on R2n\mathbb{R}^{2n}.

Extends a theorem for first-order elliptic operators on manifolds.

problem Proving the relative index theorem for general first-order elliptic operators.
method Using boundary value problems and graphical decomposition of elliptically regular boundary conditions.
result Proves the relative index theorem for general first-order elliptic operators.

Let MM be a closed connected smooth manifold and G=Diff0(M)G=\textmd{Diff}_0(M) denote the connected component of the diffeomorphism group of MM containing the identity. The natural action of GG on MM induces the trace homomorphism on homology. We show that the image of trace homomorphism is annihilated by the subalgebra o…

2005-03-21abs ↗pdf ↗

We prove an index theorem for families of linear periodic Hamiltonian systems, which is reminiscent of the Atiyah-Singer index theorem for selfadjoint elliptic operators. For the special case of one-parameter families, we compare our theorem with a classical result of Salamon and Zehnder. Finally, we use the index theo…

2013-05-24abs ↗pdf ↗

We establish a mod 2 index theorem for real vector bundles over 8k+2 dimensional compact pin^- manifolds. The analytic index is the reduced ηη invariant of (twisted) Dirac operators and the topological index is defined through KOKO-theory. Our main result extends the mod 2 index theorem of Atiyan and Singer to non-o…

2015-08-11abs ↗pdf ↗

A recent anomaly computation of Horava and Witten is proved and generalized in the form of two index theorems in odd dimensions. Theorem A is a fixed point formula for orientation-reversing involutions. Theorem B is an index theorem for manifolds with boundary using local boundary conditions. Both hold for families of …

1996-01-15abs ↗pdf ↗

Proves Morse index theorem for geodesics in conic Finsler manifolds.

problem Geodesic index theorem in conic Finsler manifolds with variable endpoints.
method Proves Morse index theorem for geodesics connecting submanifolds in a C7C^7 manifold with a C6C^6 conic pseudo-Finsler metric.
result Establishes the Morse index theorem for geodesics in conic Finsler manifolds.

Paper introduces Lie algebroid index theory and a generalized Riemann-Roch theorem.

problem Generalizing Riemann-Roch theorem for manifolds with regular foliations.
method Developed Lie algebroid index theory and applied it to obtain a generalized Riemann-Roch theorem.
result Obtained a generalized Riemann-Roch theorem for manifolds with regular foliations.

In this paper, we extend Roe's cyclic 11-cocycle to relative settings. We also prove two relative index theorems for partitioned manifolds by using its cyclic cocycle, which are generalizations of index theorems on partitioned manifolds. One of these theorems is a variant of [M. Karami-A.H.S. Sadegh-M.E. Zadeh, arXiv:…

2017-05-10abs ↗pdf ↗

In his book (II.5), Connes gives a proof of the Atiyah-Singer index theorem for closed manifolds by using deformation groupoids and appropiate actions of these on R^N. Following these ideas, we prove an index theorem for manifolds with boundary.

2009-05-09abs ↗pdf ↗

Researchers construct an index map for contact manifolds using K-theory.

problem Constructing an index for maximally hypoelliptic operators on contact manifolds.
method Using Higson's construction for symbol class in K-theory, they derive a series of maps whose induced map in K-theory is the Heisenberg Atiyah-Singer index map.
result Explicit construction of a series of maps leading to the Heisenberg Atiyah-Singer index map.

An expression is found for the L2L^2-index of a Dirac operator coupled to a connection on a UnU_n vector bundle over S1×R3S^1\times{\mathbb R}^3. Boundary conditions for the connection are given which ensure the coupled Dirac operator is Fredholm. Callias' index theorem is used to calculate the index when the connection i…

2000-09-14abs ↗pdf ↗

We give a superconnection proof of Connes' index theorem for proper cocompact actions of etale groupoids. This includes Connes' general foliation index theorem for foliations with Hausdorff holonomy groupoid.

2001-06-05abs ↗pdf ↗