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On the iterated absolute differentiation on some functional bundles

Antonella Cabras, Ivan Kolář (1997)

Archivum Mathematicum

We deduce further properties of connections on the functional bundle of all smooth maps between the fibers over the same base point of two fibered manifolds over the same base, which we introduced in [2]. In particular, we define the vertical prolongation of such a connection, discuss the iterated absolute differentiation by means of an auxiliary linear connection on the base manifold and prove the general Ricci identity.

On the jets of foliation respecting maps

Miroslav Doupovec, Ivan Kolář, Włodzimierz M. Mikulski (2010)

Czechoslovak Mathematical Journal

Using Weil algebra techniques, we determine all finite dimensional homomorphic images of germs of foliation respecting maps.

On the Kolář connection

Włodzimierz M. Mikulski (2013)

Archivum Mathematicum

Let Y M be a fibred manifold with m -dimensional base and n -dimensional fibres and E M be a vector bundle with the same base M and with n -dimensional fibres (the same n ). If m 2 and n 3 , we classify all canonical constructions of a classical linear connection A ( Γ , Λ , Φ , Δ ) on Y from a system ( Γ , Λ , Φ , Δ ) consisting of a general connection Γ on Y M , a torsion free classical linear connection Λ on M , a vertical parallelism Φ : Y × M E V Y on Y and a linear connection Δ on E M . An example of such A ( Γ , Λ , Φ , Δ ) is the connection ( Γ , Λ , Φ , Δ ) by I. Kolář.

On the natural transformations of Weil bundles

Ivan Kolář (2013)

Archivum Mathematicum

First we deduce some general results on the covariant form of the natural transformations of Weil functors. Then we discuss several geometric properties of these transformations, special attention being paid to vector bundles and principal bundles.

On the notion of potential for mappings between linear spaces. A generalized version of the Poincaré lemma

Tullio Valent (2003)

Bollettino dell'Unione Matematica Italiana

An approach to the theory of linear differential forms in a radial subset of an (arbitrary) real linear space X without a Banach structure is proposed. Only intrinsic (partially linear) topologies on X are (implicitly) involved in the definitions and statements. Then a mapping F : U X Y , with X , Y real linear spaces and U a radial subset of X , is considered. After showing a representation theorem of those bilinear forms , on X × Y for which x , y = 0 ...

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