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The present paper deals with the study of invariant submanifolds of generalized Sasakian-space-forms with respect to Levi-Civita connection as well as semi-symmetric metric connection. We provide some examples of such submanifolds and…

Differential Geometry · Mathematics 2018-08-29 Shyamal Kumar Hui , Siraj Uddin , Ali H. Alkhaldi , Pradip Mandal

In this paper we give a short geometric proof of a generalization of a well-known result about reduction of codimension for submanifolds of Riemannian symmetric spaces.

Differential Geometry · Mathematics 2013-10-22 Antonio J. Di Scala , Francisco Vittone

In this work we construct non-holomorphic, complete and minimal submanifolds of the odd-dimensional complex projective spaces $\cn P^{2n-1}$ and their dual complex hyperbolic spaces $\cn H^{2n-1}$. We then provide complete minimal…

Differential Geometry · Mathematics 2026-05-11 Sigmundur Gudmundsson

In this paper, the results of Mei, Wang, Weng and Xia [Math. Z., 2025, MR4911815] on capillary convex bodies are extended to the anisotropic setting. We develop a theory for anisotropic capillary convex bodies in the half-space and…

Differential Geometry · Mathematics 2025-07-08 Jinyu Gao , Guanghan Li

We characterize invariant subspaces of Brownian shifts on vector-valued Hardy spaces. We also solve the unitary equivalence problem for the invariant subspaces of these shifts.

Functional Analysis · Mathematics 2025-08-12 Nilanjan Das , Soma Das , Jaydeb Sarkar

In this paper, we prove a new Heintze-Karcher type inequality for shifted mean convex hypersurfaces in hyperbolic space. As applications, we prove an Alexandrov type theorem for closed embedded hypersurfaces with constant shifted $k$th mean…

Differential Geometry · Mathematics 2025-10-08 Yingxiang Hu , Yong Wei , Tailong Zhou

We obtain sharp fractional Hardy inequalities for the half-space and for convex domains. We extend the results of Bogdan and Dyda and of Loss and Sloane to the setting of Sobolev-Bregman forms.

Analysis of PDEs · Mathematics 2026-01-05 Michał Kijaczko , Julia Lenczewska

We obtain symmetrization inequalities in the context of Fractional Hajlasz-Sobolev spaces in the setting of rearrangement invariant spaces and prove that for a large class of measures our symmetrization inequalities are equivalent to the…

Functional Analysis · Mathematics 2021-04-27 Joaquim Martin , Walter A. Ortiz

In this paper, we uncover a novel connection between the Fenchel-Willmore inequality and a new logarithmic Sobolev inequality for mean-convex submanifolds immersed in non-negatively curved manifolds with Euclidean volume growth. Building on…

Differential Geometry · Mathematics 2025-10-10 Meng Ji , Kwok-Kun Kwong

We prove the Invariant Subspace Conjecture for separable Hilbert spaces.

Functional Analysis · Mathematics 2023-07-24 Charles W. Neville

In this paper, approximate lower and upper Hermite--Hadamard type inequalities are obtained for functions that are approximately convex with respect to a given Chebyshev system.

Classical Analysis and ODEs · Mathematics 2012-12-06 Judit Makó , Zsolt Páles

We give a sup $\times$ inf inequality for an elliptic equation.

Analysis of PDEs · Mathematics 2015-09-08 Samy Skander Bahoura

In this paper, we introduce B.-Y. Chen inequalities for Riemannian submersions between Riemannian manifolds. We derive these inequalities for vertical, horizontal, and mixed distributions, establishing relationships between intrinsic…

Differential Geometry · Mathematics 2026-05-20 Ravindra Singh , Mukut Mani Tripathi

In this paper, we study a slant submanifold of a complex space form. We also obtain an integral formula of Simons' type for a Kaehlerian slant submanifold in a complex space form and apply it to prove our main result.

Differential Geometry · Mathematics 2020-06-09 Aliya Naaz Siddiqui , Mohammad Jamali , Mohammad Hasan Shahid

Employing ideas of noncommutative geometry, certain dimensional invariant for quantum homogeneous spaces has been proposed and here we take up its computation for quaternion spheres.

Operator Algebras · Mathematics 2018-03-22 Bipul Saurabh

In this paper we establish the reversed sharp Hardy-Littlewood-Sobolev (HLS for short) inequality on the upper half space and obtain a new HLS type integral inequality on the upper half space (extending an inequality found by Hang, Wang and…

Analysis of PDEs · Mathematics 2017-03-09 Jingbo Dou , Qianqiao Guo , Meijun Zhu

In this paper, we establish a scale invariant Harnack inequality for some inhomogeneous parabolic equations in a suitable intrinsic geometry dictated by the nonlinearity. The class of equations that we consider correspond to the parabolic…

Analysis of PDEs · Mathematics 2021-11-19 Vedansh Arya

We give a condition for an almost constant-type manifold to be a constant-type manifold, and holomorphic and $R$-invariant submanifolds of almost Hermitian manifolds are studied. Generalizations of some results in [5] are given.

Differential Geometry · Mathematics 2013-11-12 Hakan Mete Taştan

We prove several stability and volume difference inequalities for projections of convex bodies and apply them to prove a hyperplane inequality for surface area of projection bodies.

Metric Geometry · Mathematics 2015-06-16 Alexander Koldobsky

A problem about Khovanov homology and 3-manifolds is discussed in this paper.

Geometric Topology · Mathematics 2011-07-12 Noboru Ito