Results 1  10
of
41,316
Effective divisor classes on a ruled surface
 Pacific J. Math
"... The NeronSeveri group of divisor classes modulo algebraic equivalence on a smooth algebraic surface is often not difficult to calculate, and has classically been studied as one of the fundamental invariants of the surface. A more difficult problem is the determination of those divisor classes whic ..."
Abstract

Cited by 1 (0 self)
 Add to MetaCart
which can be represented by effective divisors; these divisor classes form a monoid contained in the NeronSeveri group. Despite the finite generation of the whole NeronSeveri group, the monoid of effective divisor classes may or may not be finitely generated, and the methods used to explicitly
PACIFIC JOURNAL OF MATHEMATICS Vol. 202, No. 1, 2002 EFFECTIVE DIVISOR CLASSES ON A RULED SURFACE
"... The NeronSeveri group of divisor classes modulo algebraic equivalence on a smooth algebraic surface is often not difficult to calculate, and has classically been studied as one of the fundamental invariants of the surface. A more difficult problemis the determination of those divisor classes which ..."
Abstract
 Add to MetaCart
can be represented by effective divisors; these divisor classes forma monoid contained in the NeronSeveri group. Despite the finite generation of the whole NeronSeveri group, the monoid of effective divisor classes may or may not be finitely generated, and the methods used to explicitly calculate
ON THE FINITE GENERATION OF THE MONOID OF EFFECTIVE DIVISOR CLASSES ON RATIONAL SURFACES OF TYPE (n, m)
"... ABSTRACT. We prove that every projective rational surface of type (n, m) has only a finite number of (−1)curves and only a finite number of (−2)curves, where n and m ..."
Abstract

Cited by 6 (2 self)
 Add to MetaCart
ABSTRACT. We prove that every projective rational surface of type (n, m) has only a finite number of (−1)curves and only a finite number of (−2)curves, where n and m
The homogeneous coordinate ring of a toric variety
, 1992
"... This paper will introduce the homogeneous coordinate ring S of a toric variety X. The ring S is a polynomial ring with one variable for each onedimensional cone in the fan ∆ determining X, and S has a natural grading determined by the monoid of effective divisor classes in the Chow group An−1(X) of ..."
Abstract

Cited by 474 (7 self)
 Add to MetaCart
This paper will introduce the homogeneous coordinate ring S of a toric variety X. The ring S is a polynomial ring with one variable for each onedimensional cone in the fan ∆ determining X, and S has a natural grading determined by the monoid of effective divisor classes in the Chow group An−1(X
Using Maimonides’ Rule to Estimate the Effect of Class Size on Scholastic Achievement
 QUARTERLY JOURNAL OF ECONOMICS
, 1999
"... The twelfth century rabbinic scholar Maimonides proposed a maximum class size of 40. This same maximum induces a nonlinear and nonmonotonic relationship between grade enrollment and class size in Israeli public schools today. Maimonides’ rule of 40 is used here to construct instrumental variables e ..."
Abstract

Cited by 582 (40 self)
 Add to MetaCart
estimates of effects of class size on test scores. The resulting identification strategy can be viewed as an application of Donald Campbell’s regressiondiscontinuity design to the classsize question. The estimates show that reducing class size induces a significant and substantial increase in test scores
Experimental Estimates of Education Production Functions
 Princeton University, Industrial Relations Section Working Paper No. 379
, 1997
"... This paper analyzes data on 11,600 students and their teachers who were randomly assigned to different size classes from kindergarten through third grade. Statistical methods are used to adjust for nonrandom attrition and transitions between classes. The main conclusions are (1) on average, performa ..."
Abstract

Cited by 529 (19 self)
 Add to MetaCart
effect; (4) class size has a larger effect for minority students and those on free lunch; (5) Hawthorne effects were unlikely. I.
A theory of shape by space carving
 In Proceedings of the 7th IEEE International Conference on Computer Vision (ICCV99), volume I, pages 307– 314, Los Alamitos, CA
, 1999
"... In this paper we consider the problem of computing the 3D shape of an unknown, arbitrarilyshaped scene from multiple photographs taken at known but arbitrarilydistributed viewpoints. By studying the equivalence class of all 3D shapes that reproduce the input photographs, we prove the existence of a ..."
Abstract

Cited by 566 (14 self)
 Add to MetaCart
In this paper we consider the problem of computing the 3D shape of an unknown, arbitrarilyshaped scene from multiple photographs taken at known but arbitrarilydistributed viewpoints. By studying the equivalence class of all 3D shapes that reproduce the input photographs, we prove the existence
Using Discriminant Eigenfeatures for Image Retrieval
, 1996
"... This paper describes the automatic selection of features from an image training set using the theories of multidimensional linear discriminant analysis and the associated optimal linear projection. We demonstrate the effectiveness of these Most Discriminating Features for viewbased class retrieval ..."
Abstract

Cited by 508 (15 self)
 Add to MetaCart
This paper describes the automatic selection of features from an image training set using the theories of multidimensional linear discriminant analysis and the associated optimal linear projection. We demonstrate the effectiveness of these Most Discriminating Features for viewbased class
Model checking and abstraction
 ACM Transactions on Programming Languages and Systems
, 1994
"... software developers are using the Java language as the language of choice on many applications. This is due to the effective use of the objectoriented (OO) paradigm to develop large software projects and the ability of the Java language to support the increasing use of web technologies in business ..."
Abstract

Cited by 742 (55 self)
 Add to MetaCart
software developers are using the Java language as the language of choice on many applications. This is due to the effective use of the objectoriented (OO) paradigm to develop large software projects and the ability of the Java language to support the increasing use of web technologies in business
No Free Lunch Theorems for Optimization
, 1997
"... A framework is developed to explore the connection between effective optimization algorithms and the problems they are solving. A number of “no free lunch ” (NFL) theorems are presented which establish that for any algorithm, any elevated performance over one class of problems is offset by performan ..."
Abstract

Cited by 961 (10 self)
 Add to MetaCart
A framework is developed to explore the connection between effective optimization algorithms and the problems they are solving. A number of “no free lunch ” (NFL) theorems are presented which establish that for any algorithm, any elevated performance over one class of problems is offset
Results 1  10
of
41,316