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We study three types of generalized partial fractional operators. An extension of Green's theorem, by considering partial fractional derivatives with more general kernels, is proved. New results are obtained, even in the particular case…

Classical Analysis and ODEs · Mathematics 2012-12-18 Tatiana Odzijewicz , Agnieszka B. Malinowska , Delfim F. M. Torres

We establish an eigenfunctional theorem for positive operators, evocative of the Krein--Rutman theorem. A more general version gives a joint eigenfunctional for commuting operators.

Functional Analysis · Mathematics 2026-01-12 Nicolas Monod

A decomposition theorem for self-adjoint operators proved by Riesz and Lorch is extended to normal operators. This extension gives a new proof of the spectral theorem for unbounded normal operators.

Functional Analysis · Mathematics 2020-11-03 Katsukuni Nakagawa

The well-known necessary and sufficient criteria for the Riemann hypothesis of M. Riesz and Hardy-Littlewood, based on the order of growth at infinity along the positive real axis of certain entire functions, are here imbedded in a general…

Number Theory · Mathematics 2007-05-23 Luis Baez-Duarte

We construct an effective model for gravity of a central object at large scales. To leading order in the large radius expansion we find a cosmological constant, a Rindler acceleration, a term that sets the physical scales and subleading…

Cosmology and Nongalactic Astrophysics · Physics 2011-02-02 Daniel Grumiller

We prove a generic Torelli theorem for Jacobian elliptic surfaces, provided that the geometric genus is large compared to the irregularity. The result is effective to the extent that defining equations for the base curve are recovered from…

Algebraic Geometry · Mathematics 2023-03-24 N. I. Shepherd-Barron

Motivated by bifurcation of branches of homoclinic orbits of dynamical systems, we consider families of first-order equations on the real line and introduce a generalisation of previous index theorems by Pejsachowicz, and by Hu and…

Dynamical Systems · Mathematics 2026-03-24 Robert Skiba , Daniel Strzelecki , Nils Waterstraat

In this paper we study the isotropisation of a Generalized Scalar-Tensor theory with a massive scalar field. We find it depends on a condition on the Brans-Dicke coupling function and the potential and show that asymptotically the metric…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Stephane Fay

The investigation of the generalized coherent states for oscillator-like systems connected with given family of orthogonal polynomials is continued. In this work we consider oscillators connected with Meixner and Meixner-Pollaczek…

Quantum Physics · Physics 2007-05-23 V. V. Borzov , E. V. Damaskinsky

We prove modularity of certain residually reducible ordinary 2-dimensional $p$-adic Galois representations with determinant a finite order odd character $\chi$. For certain non-quadratic $\chi$ we prove an $R=T$ result for $T$ the weight 1…

Number Theory · Mathematics 2022-03-18 Tobias Berger , Krzysztof Klosin

In recent years, the theory for Leibniz integral rule in the fractional sense has not been able to get substantial development. As an urgent problem to be solved, we study a Leibniz integral rule for Riemann-Liouville and Caputo type…

Classical Analysis and ODEs · Mathematics 2020-12-22 Ismail T. Huseynov , Arzu Ahmadova , Nazim I. Mahmudov

In this short note, we prove a general nilpotence theorem for a rational rigid 2-ring all of whose objects satisfy a certain ``moderate growth condition'' inspired from the theory of tensor categories. This applies in particular to the…

Algebraic Geometry · Mathematics 2026-05-26 Logan Hyslop

Using the concept of a twisted trace density on a cyclic groupoid, a trace is constructed on a formal deformation quantization of a symplectic orbifold. An algebraic index theorem for orbifolds follows as a consequence of a local…

K-Theory and Homology · Mathematics 2007-05-23 Markus J. Pflaum , Hessel Posthuma , Xiang Tang

We generalize a result of Matom\"aki, Radziwi{\l}{\l}, and Tao, by proving an averaged version of a conjecture of Chowla and a conjecture of Elliott regarding correlations of the Liouville function, or more general bounded multiplicative…

Number Theory · Mathematics 2017-01-06 Nikos Frantzikinakis

In this paper we prove a generalisation of Schlenk's theorem about the existence of contractible periodic Reeb orbits on stable, displaceable hypersurfaces in symplectically aspherical, geometrically bounded, symplectic manifolds, to a…

Symplectic Geometry · Mathematics 2024-05-07 Yannis Bähni

We show that all Eichler integrals, and more generally all "generalized second order modular forms" can be expressed as linear combinations of corresponding generalized second order Eisenstein series with coefficients in classical modular…

Number Theory · Mathematics 2022-03-30 Albin Ahlbäck , Tobias Magnusson , Martin Raum

We establish partial regularity results for minimizers of a class of functionals depending on differential expressions based on elliptic operators. Specifically, we focus on functionals of Orlicz growth with a natural strong quasiconvexity…

Analysis of PDEs · Mathematics 2026-05-28 Paul Stephan

We consider the uniform resolvent and orthonormal Strichartz estimates for the Schr\"odinger operator. First we prove the Keel-Tao type theorem for the orthonormal Strichartz estimates, which means that the dispersive estimates yield the…

Analysis of PDEs · Mathematics 2024-07-09 Akitoshi Hoshiya

In a regression setup with deterministic design, we study the pure aggregation problem and introduce a natural extension from the Gaussian distribution to distributions in the exponential family. While this extension bears strong…

Machine Learning · Statistics 2012-06-06 Philippe Rigollet

A generalization of the definition of an oscillatory matrix based on the theory of cones is given in this paper. The positivity and simplicity of all the eigenvalues of a generalized oscillatory matrix are proved. The classes of generalized…

Spectral Theory · Mathematics 2013-01-17 O. Y. Kushel , P. Sharma