Frequency doubling in periodic nonlinear photonic crystals mediated by random layers of periodically poled structures mediated by uniform layers with random lengths. These structures can be
formed On two questions of optimization theory concerning quadratic mappings of quadratic
forms. The
second problem deals with the positivity of the maximum of finitely many of quadratic
Diophantine Equation Generated by the Maximal Subfield of a Circular Field© 2020, Allerton Press, Inc. Using the
fundamental basis of the field $L_9=\mathbb{Q} (2\cos(\pi/9
Development of subject position as a condition for forming communicative competence of a future teacher-structural model of
forming communicative competence of a future teacher under the condition of transforming
Exact solutions in gravity and cosmology with extra dimensions of gravitation as the
fundamental interaction are also analyzed. Results of integrable gravitational
ISLAMIST MOVEMENTS: FROM FUNDAMENTALISM TO TERROR? orientation. It shows the diverse nature of Islamic
fundamentalism, causes of Islamism's formation in its
Professor D.D. Ivanenko and his contribution to the development of fundamental physics Ivanenko’s significant contribution to the development of key areas of
fundamental physics of the twentieth
Генерация бесселевых световых пучков второй гармоники в кристаллах с радиально-периодической нелинейностью for the field amplitudes of the
fundamental and
second harmonic fields is achiered. Numerically investigated