<p style="text-indent:20px;">The spectral norm and the nuclear of a third order tensor play an important role in completion recovery problem. We show that is equal to square root three positive semi-definite biquadratic tensors, roots norms those tensors are lower bounds tensor. This provides way estimate evaluate Some upper for tensor, by radii some symmetric matrices, presented.</p>

Complete row and column symmetry breaking in constraint models using the lex leader method is generally prohibitively costly. Double lex, which is derived from lex leader, is commonly used in practice as an incomplete symmetrybreaking method for row and column symmetries. Double lex is based on a rowwise canonical variable ordering. However, this choice is arbitrary. We investigate other canoni...

breaking waves have ability to transport large quantities of sediment and significant impact on coastal structures morphology. hence, modeling of wave breaking is an important subject in coastal and marine engineering. in this research, the periodic wave breaking process on a plane slope is studied experimentally and numerically. laboratory experiments were conducted to record water surface ele...