An ontological design approach was used to describe the semantics of some boundary value problems in the LibMeta digital library. To describe problems in the LibMeta library, connections of terms and concepts with classical definitions of the mathematical encyclopedia and other primary sources have been established. Establishing links allows you to form a dictionary and thesaurus of the applied subject area of new boundary value problems and place the results in the semantic environment of the digital library. Examples of this approach are demonstrated using the capabilities of the LibMeta semantic library, which contains a digitized version of the mathematical encyclopedia, encyclopedia of mathematical physics, classifiers, and applied mathematical thesauri and dictionaries. New terms from publications, after being added to the content of the library, were reflected with links in the mathematical encyclopedia. The thesaurus for problems in the elasticity theory domain was created for the first time by integrating subject dictionaries, classifiers, metadata of specialized journal publications and encyclopedic content of the LibMeta library. The purpose of such research is to provide the user with additional services in the search for publications in the applied scientific field.

The work is a development of research conducted by the authors in the field of creating a Common Digital Space for Scientific Knowledge (CDSSK). Previous research has proposed a unified structure for representing the ontology of CDSSK elements (subspaces, classes and attributes of objects, relationships between objects or attributes). In the process of modeling the ontology using the example of the universal and a number of thematic subspaces of the CDSSK, the need for some adjustments to the structure of the ontology regarding CDSSK directories was revealed to ensure the possibility of describing nested data attributes. In addition, the concept of “data attribute value dictionary type” was introduced into the ontology; two types of dictionaries were defined – “static” and “dynamic”. This information makes it possible to simplify formal-logical control algorithms when generating CDSSK content. An indication of the dictionary type has been introduced into the structure of object attribute directories. The presented work describes the modified structure of the ontology using the example of 11 auxiliaries and 10 subject classes of the CDSSK universal subspace (USS). Examples of directories of each class, built in accordance with the ontology structure model, a list of object attributes and examples of static dictionaries are given.

The List of peer-reviewed scientific journals of the Higher Attestation Commission is gradually turning into a complex information system based on the normative documents of the Higher Attestation Commission, bibliometric data eLibrary.ru, decisions of the expert councils of the Higher Attestation Commission and working groups engaged in the analysis, ranking and categorization of the journals of the List. The Russian Scientific Journals (RSJ) database created by RIEP can become a system that serves the requests of different categories of users related to the topic of dissertation defense. So far, the RSJ has implemented the interface of a representative of the editorial board of the journal and the interface of a member of the expert council of the Higher Attestation Commission. It is desirable to include in the RSJ an open interface addressed to the degree applicant to verify compliance with the requirements of the Higher Attestation Commission for publications in journals from the List. With the established mutual exchange of data between RSJ and eLibrary.ru, the applicant's interface with the designated functionality can be organized in the eLibrary.ru user environment.

The reason for this work was the 25th anniversary of the main search engines for our country, Yandex and Google, which happened one after another. This article is an attempt to describe some events from the history of the development of Internet navigation tools from the point of view of a witness (and partly a participant).

The study examines the principle of creating virtual exhibitions as a means of integration into the Common Digital Space of Scientific Knowledge (CDSSK), information systems in the field of science and culture, with the aim of promoting science, ensuring access to information in various scientific fields, and drawing attention to current issues and achievements in the scientific sphere. The main methods of creating virtual exhibitions are formulated, including content selection and segmentation into main sections. In addition, a classification of virtual exhibitions into autonomous, remote, and combined is proposed. Special attention is paid to the methodology of creating virtual exhibition at the Moscow Center of the Russian Academy of Sciences. Using the example of an interdepartmental combined virtual exhibition, a detailed description of the "Mrs. Penicillin" exhibition dedicated to the creator of penicillin, Z.V. Ermolyeva, is provided.

Observational data from the North Atlantic over 40 years of the NAAD project were analyzed. The total heat flux from the ocean to the atmosphere (and from the atmosphere to the ocean) was considered as the sum of latent and sensible heat. The coefficients of the stochastic differential equation representing the stochastic process were statistically determined from the original data set. Previously, the existence and uniqueness of a solution in the strong sense of the stochastic differential equation generated by the constructed diffusion process was proven when Kolmogorov's conditions were met. Numerical calculations on the Lomonosov-2 supercomputer at Moscow State University. M.V. Lomonosov.

The conditions for creating optimizing parallelizing compilers for computing systems with distributed memory are described. Target computing systems are microcircuits of the “supercomputer on a chip” type. Both optimizing program transformations specific to systems with distributed memory and those transformations that are needed both for computing systems with distributed memory and for computing systems with shared memory are presented. The issues of minimizing interprocessor transfers when parallelizing a recursive function are discussed. The main approach to creating such compilers is block-affine data placement in distributed memory with minimization of inter-processor transfers. It is shown that parallelizing compilers for computing systems with distributed memory should be created on the basis of a high-level internal representation and a high-level output language.