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  2. Matrix isolation - Wikipedia

    en.wikipedia.org/wiki/Matrix_isolation

    Matrix isolation is an experimental technique used in chemistry and physics. It generally involves a material being trapped within an unreactive matrix. A host matrix is a continuous solid phase in which guest particles (atoms, molecules, ions, etc.) are embedded. The guest is said to be isolated within the host matrix.

  3. Representation theory - Wikipedia

    en.wikipedia.org/wiki/Representation_theory

    Let be a vector space over a field. [6] For instance, suppose is or , the standard n-dimensional space of column vectors over the real or complex numbers, respectively.In this case, the idea of representation theory is to do abstract algebra concretely by using matrices of real or complex numbers.

  4. List of named matrices - Wikipedia

    en.wikipedia.org/wiki/List_of_named_matrices

    A matrix (plural matrices, or less commonly matrixes) is a rectangular array of numbers called entries. Matrices have a long history of both study and application, leading to diverse ways of classifying matrices. A first group is matrices satisfying concrete conditions of the entries, including constant matrices.

  5. Matrix (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Matrix_(mathematics)

    Matrix theory is the branch of mathematics that focuses on the study of matrices. It was initially a sub-branch of linear algebra , but soon grew to include subjects related to graph theory , algebra , combinatorics and statistics .

  6. Matrix-assisted laser desorption/ionization - Wikipedia

    en.wikipedia.org/wiki/Matrix-assisted_laser_de...

    These matrices have been shown to have better ionization patterns that do not result in odd fragmentation patterns or complete loss of side chains. [21] It has also been suggested that conjugated porphyrin like molecules can serve as a matrix and cleave themselves eliminating the need for a separate matrix compound.

  7. Happy New Year! Australia, Japan, Hong Kong welcome 2025: See ...

    www.aol.com/happy-australia-japan-hong-kong...

    Cue the fireworks because it's now 2025 in some parts of the world.. Australia welcomed the new year with a 12-minute fireworks show featuring a golden waterfall effect falling from the iconic ...

  8. Group theory - Wikipedia

    en.wikipedia.org/wiki/Group_theory

    The next important class of groups is given by matrix groups, or linear groups. Here G is a set consisting of invertible matrices of given order n over a field K that is closed under the products and inverses. Such a group acts on the n-dimensional vector space K n by linear transformations.

  9. Dad says daughter was called 'this': Angry parents protest ...

    www.aol.com/demonstrators-protest-maryland...

    We got a lot of compassion, understanding, caring,” he said. Other businesses reached out too, ”very genuinely and sincerely saying, ‘We want you to come visit our business,’” he said.