Results 61 to 70 of about 69,880 (174)

Recent developments on the Stieltjes transform of generalized functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1987
This paper is concerned with recent developments on the Stieltjes transform of generalized functions. Sections 1 and 2 give a very brief introduction to the subject and the Stieltjes transform of ordinary functions with an emphasis to the inversion ...
Ram Sankar Pathak, Lokenath Debnath
doaj   +1 more source

Invariant Characterization of Scalar Second‐Order ODEs That Admit Three Point Symmetry Lie Algebra via Cartan's Equivalence Method

open access: yesMathematical Methods in the Applied Sciences, Volume 49, Issue 1, Page 435-444, 15 January 2026.
ABSTRACT Cartan's equivalence method is applied to explicitly construct three‐dimensional invariant coframes for three branches, which are used to characterize scalar second‐order ODEs with a three‐point symmetry Lie algebra. Additionally, we present a method for constructing the point transformation based on the derived invariant coframes.
Ahmad Y. Al‐Dweik   +5 more
wiley   +1 more source

Analysis of Operators with Complex Gaussian Kernels over (ℝ): Abelian Theorems

open access: yesAxioms
This paper investigates Abelian theorems for operators with complex Gaussian kernels over distributions of compact support. Furthermore, our investigation encompasses an examination of the Gauss–Weierstrass semigroup, the linear canonical transform, and ...
Hari M. Srivastava   +2 more
doaj   +1 more source

An Embedding Theorem for Abelian Categories

open access: yesJournal of Algebra, 1994
There are few recent papers on abelian categories. Thus it is a pleasure to see one which studies the embedding of a small abelian category \(\mathcal S\) as a finitely closed generating full subcategory of a Grothendieck category \(\mathcal C\). Finitely closed means that \(\mathcal S\) is closed under finite limits and colimits in \(\mathcal C\).
openaire   +2 more sources

Quantum GraviElectro Dynamics

open access: yesAnnalen der Physik, Volume 538, Issue 1, January 2026.
The BRST invariant Lagrangian of the gravitationally interacting U(1)$U(1)$ gauge theory, namely the Quantum GraviElectro Dynamics (QGED). The Yan–Mills theory with the Hilbert–Einstein gravitational Lagrangian, namely the Yang–Mills–Utiyama (YMU) theory, is defined and quantised using the standard procedure. The theory is perturbatively renormalisable,
Yoshimasa Kurihara
wiley   +1 more source

FTheoryTools: Advancing Computational Capabilities for F‐Theory Research

open access: yesFortschritte der Physik, Volume 74, Issue 1, January 2026.
Abstract A primary goal of string phenomenology is to identify realistic four‐dimensional physics within the landscape of string theory solutions. In F‐theory, such solutions are encoded in the geometry of singular elliptic fibrations, whose study often requires particularly challenging and cumbersome computations.
Martin Bies   +2 more
wiley   +1 more source

A purity theorem for Abelian schemes

open access: yesMichigan Mathematical Journal, 2004
We prove a purity theorem for abelian schemes in arbitrary unramified mixed characteristic (0,p). The case p=2 is completely new and the case p>2 fixes several errors in the literature.
openaire   +4 more sources

Scissors congruence K$K$‐theory for equivariant manifolds

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 1, January 2026.
Abstract We introduce a scissors congruence K$K$‐theory spectrum that lifts the equivariant scissors congruence groups for compact G$G$‐manifolds with boundary, and we show that on π0$\pi _0$, this is the source of a spectrum‐level lift of the Burnside ring‐valued equivariant Euler characteristic of a compact G$G$‐manifold.
Mona Merling   +4 more
wiley   +1 more source

On stabilizers in finite permutation groups

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 1, January 2026.
Abstract Let G$G$ be a permutation group on the finite set Ω$\Omega$. We prove various results about partitions of Ω$\Omega$ whose stabilizers have good properties. In particular, in every solvable permutation group there is a set‐stabilizer whose orbits have length at most 6, which is best possible and answers two questions of Babai.
Luca Sabatini
wiley   +1 more source

New Advances in Index Whittaker Transforms

open access: yesMathematics
In this paper, we establish new Lp-boundedness results and derive novel Parseval–Goldstein relations for the index Whittaker transform. Additionally, we obtain Abelian theorems for the distributional index Whittaker transform applied to distributions ...
Hari Mohan Srivastava   +2 more
doaj   +1 more source

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