Ruang null dari matriks A yang berukuran m × n adalah himpunan semua solusi untuk persamaan Ax = 0 dan ruang peta y. Misalkan dikatakan idempoten jika A2 A. Matriks B Dua komutatif nol AB BA O. Tulisan ini mengkaji hubungan pada idempoten.Kata Kunci: Null, Peta, Idempoten.

Abstract The purpose of the article is to check impact Net Operating Loss Policies (NOL) for firms. are a central fiscal tool because they enable firms be taxed on their average profitability over time. A complete NOL policy has 4 dimensions: carry-forward (1), carry-back (2), unlimited in time (3) and with value money (4) taken into account. No country applies policy. To evaluate all dimension...

The zero-lizld lluoresccnccdckctcd triplet state mpetlc reson3ncc spcctn hwc been obmincd for the pymchlorophyllidc a-apomyoglobm compln at 1 K The rnplct SICIIC zero-field sphltmgs Jnd spm sublevel dyn.mucs wcrc detcclcd on the rcsolwd features of the slrucrurcd lowtempcrzxture Iluoresccncc. Struclurrd ~luorcsccncc LS nol obscrvcd ior pyiuchlorophyhde a m XI atgzruc m3trLx under Idenricsl cand...

“Phan~oma” are records inserted into a concurrently aelected set of records specified by a predicate such that Ihe selection does not eee a transaction conaietent result. The usual locking slrategy is lo lock only czisling records. However, records that satisfy the eeleclion predicate muat be locked even when they are nol present in the database to prevent their insertion. One way to cope with ...

The title compound, C(20)H(22)Br(2)N(2)O(2)·0.25CH(4)O, was synthesized by the condensation reaction of salicyl-aldehyde with 4-(2-amino-3,5-dibromo-benzyl-amino)-cyclo-hexa-nol in methanol. There are four independent main mol-ecules and two half-occupied methanol solvent mol-ecules in the asymmetric unit. The dihedral angles between the two benzene rings in the four mol-ecules are 87.8 (6), 86...

The chemotherapy drug, 5-fluorouracil (5-FU), has been reported to cause cognitive impairments in cancer patients. The drug also reduces cell proliferation and survival in the brain. Asiatic acid (AA) is a triterpene compound found in Centella asiatica that can protect against reduction of neurogenesis in the hippocampus and memory deficits induced by valproic acid (VPA). In the present study, ...