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81Roman Curia — This article is part of a series on the Roman Curia Dicastery Apostolic Constitution Pastor Bonus Secretariat of State …
82Kernel (algebra) — In the various branches of mathematics that fall under the heading of abstract algebra, the kernel of a homomorphism measures the degree to which the homomorphism fails to be injective. An important special case is the kernel of a matrix, also… …
83Louis de Broglie — Born 15 August 1892(1892 08 15) Dieppe, France …
84Buckingham π theorem — The Buckingham π theorem is a key theorem in dimensional analysis. The theorem loosely states that if we have a physically meaningful equation involving a certain number, n , of physical variables, and these variables are expressible in terms of… …
85Splitting lemma — In mathematics, and more specifically in homological algebra, the splitting lemma states that in any abelian category, the following statements for short exact sequence are equivalent. Given a short exact sequence with maps q and r: :0 ightarrow… …
86Ecclesiastical court — An ecclesiastical court (also called Court Christian or Court Spiritual ) is any of certain courts having jurisdiction mainly in spiritual or religious matters. In the Middle Ages in many areas of Europe these courts had much wider powers than… …
87Jordan normal form — In linear algebra, a Jordan normal form (often called Jordan canonical form)[1] of a linear operator on a finite dimensional vector space is an upper triangular matrix of a particular form called Jordan matrix, representing the operator on some… …
88Catholic marriage — Therefore what God has joined together, let not man separate. (Gospel of Matthew 19:6) Matrimony, The Seven Sacraments, Rogier van der Weyden, ca. 1445. Catholic marriage, also called matrimony, is a covenant by which a man and a woman establish… …
89Patent attorney — A patent attorney is an attorney who has the specialized qualifications necessary for representing clients in obtaining patents and acting in all matters and procedures relating to patent law and practice, such as filing an opposition. The term… …
90Quotient space (linear algebra) — In linear algebra, the quotient of a vector space V by a subspace N is a vector space obtained by collapsing N to zero. The space obtained is called a quotient space and is denoted V / N (read V mod N ). Definition Formally, the construction is… …
