We compute moduli spaces of Bridgeland stable objects on an irreducible principally polarized complex abelian surface (T, `) corresponding to twisted ideal sheaves. We use Fourier-Mukai techniques to extend the ideas of Arcara and Bertram to express wall-crossings as Mukai flops and show that the moduli spaces are projective.

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Algebraic techniques are employed to obtain necessary conditions for the existence of certain circulant weighing matrices. As an application we rule out the existence of many circulant weighing matrices. We study orders n = 8 +8+1, for 10 ~ 8 ~ 25. These orders correspond to the number of points in a projective plane of order 8.

dealt mainly with theoretical problems, psychological explanations and classifications. This earlier edition departed most from the traditional approach by including two extensive chapters on projective techniques and psychotherapy. These chapters embody the modern psychological approach to the field of mental deficiency and provoke much stimulating thought on the traditionally accepted I.Q., r...

We study intersecting D6-branes in Calabi-Yau manifolds that are smooth hypersurfaces in weighted projective spaces. We develop the techniques for calculating intersection numbers between special Lagrangian sub-manifolds defined as fixed loci of anti-holomorphic involutions. We present global Pati-Salam and MSSM-like models that are supersymmetric up to a decoupled hidden sector. ∗email: palti@...

Projectively invariant shape descriptors allow fast indexing into model libraries without the need for pose computation or camera calibration. This paper describes progress in building a model based vision system for plane objects that uses algebraic projective invari-ants. We give a brief account of these descriptors and then describe the recognition system, giving examples of the invariant te...

It is shown that good linear [n, k, d] codes over a finite field GF(q) can be constructed by concatenating the generator matrices of Reed-Solomon codes. For the first interesting case of k = 3, it is shown that many of the codes obtained via projective geometry techniques can readily be obtained via the proposed algebraic approach.

In this article, we propose a new approach to calculate the Nambu-Gorkov propagator intuitively with some linear algebra techniques in presence of the scalar diquark condensates. With the help of energy projective operators, we can obtain relatively simple expressions for the quark propagators, which greatly facilitate the calculations in solving the Schwinger-Dyson equation to obtain the gap p...

Abstract In this work we show that the Weil-Petersson volume (which coincides with CM degree) in case of weighted points projective line is continuous when approaching Calabi-Yau geometry from Fano geometry. More specifically, computed via localization converges to geometric volume, by McMullen different techniques, sum weights approaches

Abstract The present study attempts to explore the meaning of words “digital,” “virtual,” “hybrid,” “phygital,” “metaversal,” and “physical” applied planned events. primary aims is understand whether there are significant differences among them how managers can use achieve their objectives. research identifies projective techniques as most appropriate method underpin phenomenon, it adopts an ex...