I. M. Gel'fand

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i. The description of the algebraic vector bundles over projective space pn has attracted the attention of many specialists in algebraic geometry (see [1-3]). Recently, interest in this problem has increased even more in connection with the remarkable papers of Atiyah and Ward [4] and Belavin and Zakharov [5], in which the connection of bundles over CP 3(More)
A model for coordinated execution of multijoint goal-directed limb movements is suggested from the following principles. (1) Central control signals for a single limb joint are individually formed, proceeding from its ability to bring the limb nearer to the target and leaving control signals directed simultaneously to other joint out of account. The joints(More)
In the pedal ganglia ofClione limacina the growth of neurites is traced in motoneurons after transection of the wing nerve and in interneurons after transection of the pedal commissure. Neurons were stained intracellularly with Lucifer yellow. In the motoneurons the neurites growing from the transected end of the axon and from the neuron soma spread to all(More)
In this paper methods are given for constructing combinatorial formulas for Pontryagin classes, which for the case of the first Pontryagin class reduce to the formula obtained in the paper of Gel'fand, Losik, and myself [3]. The definition of Pontryagin classes in terms of the degeneration of systems of sections of fiber bundles (see [i, 2]) serves as the(More)
The activity of neurones of the lateral reticular nucleus (LRN) was recorded in thalamic cats immobilized with Flaxedil during "fictitious scratching", that is during rhythmical activity of motoneurones typical of normal scratching. The LRN neurones exhibited a distinct modulation of their discharge related to the rhythmical activity of motoneurones in(More)