Metric packing for K3+K3

نویسنده

  • Hiroshi Hirai
چکیده

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Metric packing for K 3 + K 3 Hiroshi HIRAI Research Institute for

In this paper, we consider the metric packing problem for the commodity graph of disjoint two triangles K3 +K3, which is dual to the multiflow feasibility problem for the commodity graph K3 + K3. We prove Karzanov’s conjecture concerning quarter-integral packings by certain bipartite metrics.

متن کامل

Metric packing for K 3 + K 3 Hiroshi HIRAI

In this paper, we consider the metric packing problem for the commodity graph of disjoint two triangles K3+K3, which is dual to the multiflow feasibility problem for the commodity graph K3 +K3. We prove a strengthening of Karzanov’s conjecture concerning quarter-integral packings by certain bipartite metrics.

متن کامل

- qc / 0 30 40 66 v 3 3 1 Ju l 2 00 3 Anti - self - dual Riemannian metrics without Killing vectors , can they be realized on K 3 ?

Explicit Riemannian metrics with Euclidean signature and anti-self dual curvature that do not admit any Killing vectors are presented. The metric and the Riemann curvature scalars are homogenous functions of degree zero in a single real potential and its derivatives. The solution for the potential is a sum of exponential functions which suggests that for the choice of a suitable domain of coord...

متن کامل

Special Kähler Metrics on Complex Line Bundles and the Geometry of K3-Surfaces

In this article we continue studying the Ricci-flat Riemannian metrics that were constructed in [1]. On closer examination it turned out that they possess a number of remarkable properties; in particular, they have the holonomy group SU(2), so presenting special Kähler metrics. The metrics of holonomy SU(2) are interesting because of their applications in mathematical physics. In superstring th...

متن کامل

ar X iv : g r - qc / 0 30 40 66 v 1 1 8 A pr 2 00 3 Towards the metric on K 3

An explicit Riemannian metric with Euclidean signature and anti-self dual curvature that does not admit any Killing vectors is presented. It could be a class of metrics on K3, or on surfaces whose universal covering is K3. This metric contains an infinite number of arbitrary parameters, so further work is required to identify the finite number of essential parameters characterizing K3. PACS num...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Combinatorica

دوره 30  شماره 

صفحات  -

تاریخ انتشار 2010