Volume 49 – 2022 – Special Issue in honor of Professor Renato de Azevedo Tribuzy on the occasion of his 75th birthday – Part I

ISSN 2317-6636

Preface

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Hopf type theorems for surfaces in Riemannian manifolds

Authors: H. Alencar, G. Silva Neto and D. Zhou

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On Curvature Estimates for four-dimensional gradient Ricci solitons

Author: Huai-Dong Cao

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The principal curvature theorem and its applications to constant mean curvature hypersurfaces in Euclidean space

Authors: L.J. Alías, S.C. García-Martínez and J. Meléndez

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On the principal eigenvalue of the truncated Laplacian, and submanifolds with bounded mean curvature

Authors: G.P. Bessa, L.P.M. Jorge, L. Mari

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Equivariant embeddings of symmetric spaces

Author: J.-H. Eschenburg

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A survey on critical metrics of the volume functional

Authors: A. Barros and E. Ribeiro Jr

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The isoperimetric problem in the hyperbolic 3-torus

Authors: G. A. Lobos, A. Y. Hancco and V. R. Batista

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A unified approach to Bäcklund type theorems for surfaces in 3-dimensional pseudo-euclidean space

Authors: F. Kelmer, L. A. Rodrigues and K. Tenenblat

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Cyclic conformally flat hypersurfaces revisited

Authors: J. P. Santos and R. Tojeiro

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Minimal real Kaehler submanifolds

Authors: S. Chion and M. Dajczer

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Codazzi surfaces in 4-manifolds

Authors: G. Colombo, G. R. Jensen and M. Rigoli

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