It is shown that a Hirzebruch surface admits a Kähler metric (possibly indefinite) of constant scalar curvature if and only if its degree equals zero. There have been many extensive studies for positive-definite Kähler metrics of constant scalar curvature, especially, Kähler Einstein metrics and scalar-flat Kähler metrics, on existence, uniqueness, obstructions, and relationships with other not...

In this paper, we show that the calibrated method can also be used to detect indefinite minimal Lagrangian submanifolds in C k . We introduce the notion of indefinite special Lagrangian submanifolds in C k and generalize the well-known work of Harvey-Lawson to the indefinite case.

In this paper we investigate several properties of indefinite Kähler manifold of complex dimension n (n > 2) with the Krupka-type curvature tensor, and present several classes of indefinite complex submanifolds of an indefinite complex space form. M.S.C. 2010: 53C40, 53C25.

We derive an indefinite quadrature formula, based on a theorem of Ganelius, for Hp functions, for p > 1, over the interval (−1, 1). The main factor in the error of our indefinite quadrature formula is O(e−π √ ), with 2N nodes and 1 p + 1 q = 1. The convergence rate of our formula is better than that of the Stenger-type formulas by a factor of √ 2 in the constant of the exponential. We conjectur...

In this paper, I argue that Greek shows evidence of having phonetically null indefinite “special” object pronominals (meaning null, clitic-like indefinite pronominals). This claim is motivated by the similarity of a number of constructions involving indefinites to constructions involving cliticized definites. As I will show, it provides a maximally simple account of Greek indefinite object drop...

Not only do indefinite noun phrases introduce new discourse referents, they also equip them with a cataphoric (or forward-looking) potential, i.e. with a certain degree of activation which is mirrored in discourse effects such as the frequency of anaphoric references back to the referent in the subsequent discourse. Comparing the two German indefinite determiners ein ‘a(n)’ and indefinite demon...

Farkas (2002) argues that three types of uses of indefinite NPs that are often deemed specific do not actually form a natural class. The varieties of specificity she considers are: 1. partitivity: indefinite NPs with interpretations like that of English some of the books 2. scopal specificity: indefinite NPs that take widest scope, sometimes out of scope islands, and/or in some languages morpho...

In the recent linguistic literature, much attention has been devoted to the semantics and pragmatics of indefinite NPs. One of the issues that have been addressed is how different indefinite determiners in various languages contribute to the interpretation of the NP or of the whole sentence. The purpose of this talk is, hopefully, to make a further contribution to this investigation by examinin...

articles in general and definite articles in particular can create problems even long after all other aspects of english have been mastered. the present article investigated the learnability problems related to the acquisition of count-mass distinction of english nominals by persian l2 learners. the theoretical underpinning of the study is the interpretability hypothesis (tsimpli & dimitrak...