Fibrations and Recursivity
نویسنده
چکیده
— We present hère some facts about recursive function theory that we describe in an abstract jorm; for this we use hère fibered catégories. A first approach ofthis was made by P. Mulry by using of topos theory. Out of the results find hère, we give the first steps towards the treatment of partiality in an abstract form. Résumé. — Nous donnons ici quelques résultats sur les fonctions récursives au moyen des fibrations. Une première approche de cette formalisation avait été faite par P. Mulry en utilisant la théorie des topos. En utilisant les résultats trouvés ici, nous donnons les premières définitions pour une formalisation abstraite des fonctions partielles.
منابع مشابه
Rigidity of Fibrations over Nonpositively Curved Manifolds?
THE THEORY of manifold approximate fibrations is the correct bundle theory for topological manifolds and singular spaces. This theory plays the same role in the topological category as fiber bundle theory plays in the differentiable category and as block bundle theory plays in the piecewise linear category. For example, neighborhoods in topologically stratified spaces can be characterized and c...
متن کاملDiagonal Fibrations Are Pointwise Fibrations
On the category of bisimplicial sets there are different Quillen closed model structures associated to various definitions of fibrations. In one of them, which is due to Bousfield and Kan and that consists of seeing a bisimplicial set as a simplicial object in the category of simplicial sets, fibrations are those bisimplicial set maps such that each of the induced simplicial set maps is a Kan f...
متن کاملClassification of Lagrangian Fibrations over a Klein Bottle
This paper completes the classification of regular Lagrangian fibrations over compact surfaces. [13] classifies regular Lagrangian fibrations over T. The main theorem in [8] is used to in order to classify integral affine structures on the Klein bottle K and, hence, regular Lagrangian fibrations over this space.
متن کاملOn Birational Boundedness of Fano Fibrations
We investigate birational boundedness of Fano varieties and Fano fibrations. We establish an inductive step towards birational boundedness of Fano fibrations via conjectures related to boundedness of Fano varieties and Fano fibrations. As corollaries, we provide approaches towards birational boundedness and boundedness of anti-canonical volumes of varieties of -Fano type. Furthermore, we show b...
متن کاملPoisson Fibrations and Fibered Symplectic Groupoids
We show that Poisson fibrations integrate to a special kind of symplectic fibrations, called fibered symplectic groupoids.
متن کاملذخیره 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 ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- ITA
دوره 29 شماره
صفحات -
تاریخ انتشار 1995