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We derive Mok-Siu-Yeung type formulas for horizontal maps from compact contact locally sub-symmetric spaces into strictly pseudoconvex CR manifolds and we obtain some rigidity theorems for the horizontal pseudoharmonic maps.

Differential Geometry · Mathematics 2007-06-27 Robert Petit

In this work we construct new multi-dimensional families of compact minimal submanifolds, of the classical Riemannian symmetric spaces $SU(n)/SO(n)$, $Sp(n)/U(n)$, $SO(2n)/U(n)$ and $SU(2n)/Sp(n)$, of codimension two.

Differential Geometry · Mathematics 2024-09-13 Johanna Marie Gegenfurtner , Sigmundur Gudmundsson

We show the contractibility of spaces of invariant Riemannian metrics of positive scalar curvature on compact connected manifolds of dimension at least two, with and without boundary and equipped with compact Lie group actions. On manifolds…

Differential Geometry · Mathematics 2025-06-23 Christian Baer , Bernhard Hanke

We define secondary theories and characteristic classes for simplicial smooth manifolds generalizing Karoubi's multiplicative K-theory and multiplicative cohomology groups for smooth manifolds. As a special case we get versions of the…

Algebraic Topology · Mathematics 2009-03-30 Marcello Felisatti , Frank Neumann

For a smooth map between noetherian schemes, Verdier relates the top relative differentials of the map with the twisted inverse image functor `upper shriek'. We show that the associated traces for smooth proper maps can be rendered concrete…

Algebraic Geometry · Mathematics 2019-03-25 Suresh Nayak , Pramathanath Sastry

We find a necessary and sufficient conditions for the simplicity and uniqueness of trace for reduced free products of finite families of finite dimensional $C^*$-algebras with specified traces on them.

Operator Algebras · Mathematics 2007-05-23 Nikolay A Ivanov

Suppose that $A,B \in {\rm PSL}(2,\mathbb{R})$ generate a discrete and free group of rank 2, and let $m,n\ge 1$. We consider subgroups $\langle R,S\rangle$ of ${\rm PSL}(2,\mathbb{R})$ generated by roots of $A$ and $B$, i.e., by elements…

Group Theory · Mathematics 2025-08-11 Martin Kreuzer , Anja Moldenhauer , Gerhard Rosenberger

We compactify M(atrix) theory on Riemann surfaces Sigma with genus g>1. Following [1], we construct a projective unitary representation of pi_1(Sigma) realized on L^2(H), with H the upper half-plane. As a first step we introduce a suitably…

High Energy Physics - Theory · Physics 2018-06-20 G. Bertoldi , J. M. Isidro , M. Matone , P. Pasti

In 2000 Iwaniec, Luo, and Sarnak proved for certain families of $L$-functions associated to holomorphic newforms of square-free level that, under the Generalized Riemann Hypothesis, as the conductors tend to infinity the one-level density…

Number Theory · Mathematics 2017-07-14 Owen Barrett , Paula Burkhardt , Jonathan DeWitt , Robert Dorward , Steven J. Miller

We collect some classical results on the versal families of ordinary compact Riemann surfaces needed in `Versal Families of Compact Super Riemann Surfaces'.

Complex Variables · Mathematics 2012-08-23 Roland Knevel

This is the second of two papers that describe a compactness theorem for sequences of solutions of certain SL(2;C) analogs of the anti-self dual equations on oriented, 4-dimensional Riemannian manifolds. This paper proves theorems that…

Differential Geometry · Mathematics 2014-07-24 Clifford Henry Taubes

In this work we relate the known results about the homotopy type of classifying spaces for smooth foliations, with the homology and cohomology of the discrete group of diffeomorphisms of a smooth compact connected oriented manifold. The…

Algebraic Topology · Mathematics 2023-11-16 Steven Hurder

In this short note, we show the rigidity of a trace estimate for Steklov eigenvalues with respect to functions in our previous work (Trace and inverse trace of Steklov eigenvalues. J. Differential Equations 261 (2016), no. 3, 2026--2040.).…

Differential Geometry · Mathematics 2020-01-22 Yongjie Shi , Chengjie Yu

We present a trace formula for a Witten type Index for superconformal field theories in d=3,5 and 6 dimensions, generalizing a similar recent construction in d=4. We perform a detailed study of the decomposition of long representations into…

High Energy Physics - Theory · Physics 2009-09-29 Jyotirmoy Bhattacharya , Sayantani Bhattacharyya , Shiraz Minwalla , Suvrat Raju

We show that the space of traces of the free group $F_d$ on $2\leq d \leq \infty $ generators is a Poulsen simplex, i.e., every trace is a pointwise limit of extreme traces. This fails for many virtually free groups. The same result holds…

Group Theory · Mathematics 2024-03-14 Joav Orovitz , Raz Slutsky , Itamar Vigdorovich

We obtain general trace formulae in the case of perturbation of self-adjoint operators by self-adjoint operators of class $\bS_m$, where $m$ is a positive integer. In \cite{PSS} a trace formula for operator Taylor polynomials was obtained.…

Functional Analysis · Mathematics 2010-08-11 Alexei Aleksandrov , Vladimir Peller

Stable compact minimal submanifolds of the product of a sphere and any Riemannian manifold are classified whenever the dimension of the sphere is at least three. The complete classification of the stable compact minimal submanifolds of the…

Differential Geometry · Mathematics 2010-12-06 Francisco Torralbo , Francisco Urbano

The trace or the $0$th Hochschild--Mitchell homology of a linear category $\mathcal{C}$ may be regarded as a kind of decategorification of $\mathcal{C}$. We compute traces of the two versions $\dot{\mathcal{U}}$ and $\dot{\mathcal{U}}^*$ of…

Quantum Algebra · Mathematics 2017-02-10 Anna Beliakova , Kazuo Habiro , Aaron D. Lauda , Marko Živković

Article is devoted to the Examples 2 and 3 of the symplectic solvable Lie groups $R$ with some special cohomological properties, which have been constructed by Benson and Gordon. But they are not succeeded in constructing corresponding…

Differential Geometry · Mathematics 2007-05-23 V. Gorbatsevich

Let $S \subset \mathbb P^3$ be a very general sextic surface over complex numbers. Let $\mathcal{M}(H, c_2)$ be the moduli space of rank $2$ stable bundles on $S$ with fixed first Chern class $H$ and second Chern class $c_2$. In this…

Algebraic Geometry · Mathematics 2022-09-08 Debojyoti Bhattacharya , Sarbeswar Pal