# Rendiconti dell'Istituto di Matematica dell'Università di Trieste: an International Journal of Mathematics vol.45 (2013)

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**CONTENTS**

Richard F. Patterson

RH-regular transformation of unbounded double sequences

Sergey V. Ludkowski

Manifolds over Cayley-Dickson algebras and their immersions

Andrea Pinamonti, Enrico Valdinoci

A Lewy-Stampacchia estimate for variational inequalities in the Heisenberg group

Yoshiaki Fukuma

Classification of polarized manifolds by the second sectional Betti number, II

Ada Boralevi

A note on secants of Grassmannians

Santi Spadaro

Increasing chains and discrete reflection of cardinality

Miroslav Hušek, Antonio Pulgarín

Recent progress on characterizing lattices C(X) and U(Y )

Naohiro Fukuda, Tamotu Kinoshita

Dikran Dikranjan, Daniele Impieri, Daniele Toller

Metrizability of hereditarily normal compact like groups

Dikran Dikranjan, Anna Giordano Bruno

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